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Ren T, Zhou Y, Cui X, Wu B, Rittmann BE. Differentiation and quantification of extracellular polymeric substances from microalgae and bacteria in the mixed culture. Water Res 2024; 256:121641. [PMID: 38643643 DOI: 10.1016/j.watres.2024.121641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 04/09/2024] [Accepted: 04/17/2024] [Indexed: 04/23/2024]
Abstract
Extracellular polymeric substances (EPS) play significant roles in the formation, function, and interactions of microalgal-bacteria consortia. Understanding the key roles of EPS depends on reliable extraction and quantification methods, but differentiating of EPS from microalgae versus bacteria is challenging. In this work, cation exchange resin (CER) and thermal treatments were applied for total EPS extraction from microalgal-bacteria mixed culture (MBMC), flow cytometry combined with SYTOX Green staining was applied to evaluate cell disruption during EPS extraction, and auto-fluorescence-based cell sorting (AFCS) was used to separate microalgae and bacteria in the MBMC. Thermal extraction achieved much higher EPS yield than CER, but higher temperature and longer time reduced cell activity and disrupted the cells. The highest EPS yield with minimal loss of cell activity and cell disruption was achieved using thermal extraction at 55℃ for 30 min, and this protocol gave good results for MBMC with different microalgae:bacteria (M:B) mass ratios. AFCS combined with thermal treatment achieved the most-efficient biomass differentiation and low EPS loss (<4.5 %) for the entire range of M:B ratios. EPS concentrations in bacteria were larger than in microalgae: 42.8 ± 0.4 mg COD/g TSS versus 9.19 ± 0.38 mg COD/g TSS. These findings document sensitive and accurate methods to extract and quantify EPS from microalgal-bacteria aggregates.
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Affiliation(s)
- Tian Ren
- College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Yun Zhou
- College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China.
| | - Xiaocai Cui
- College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Beibei Wu
- College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ 85287-5701, United States of America
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2
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Long M, Zheng CW, Roldan MA, Zhou C, Rittmann BE. Co-Removal of Perfluorooctanoic Acid and Nitrate from Water by Coupling Pd Catalysis with Enzymatic Biotransformation. Environ Sci Technol 2024. [PMID: 38757358 DOI: 10.1021/acs.est.3c10377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
PFAS (poly- and per-fluorinated alkyl substances) represent a large family of recalcitrant organic compounds that are widely used and pose serious threats to human and ecosystem health. Here, palladium (Pd0)-catalyzed defluorination and microbiological mineralization were combined in a denitrifying H2-based membrane biofilm reactor to remove co-occurring perfluorooctanoic acid (PFOA) and nitrate. The combined process, i.e., Pd-biofilm, enabled continuous removal of ∼4 mmol/L nitrate and ∼1 mg/L PFOA, with 81% defluorination of PFOA. Metagenome analysis identified bacteria likely responsible for biodegradation of partially defluorinated PFOA: Dechloromonas sp. CZR5, Kaistella koreensis, Ochrobacterum anthropic, and Azospira sp. I13. High-performance liquid chromatography-quadrupole time-of-flight mass spectrometry and metagenome analyses revealed that the presence of nitrate promoted microbiological oxidation of partially defluorinated PFOA. Taken together, the results point to PFOA-oxidation pathways that began with PFOA adsorption to Pd0, which enabled catalytic generation of partially or fully defluorinated fatty acids and stepwise oxidation and defluorination by the bacteria. This study documents how combining catalysis and microbiological transformation enables the simultaneous removal of PFOA and nitrate.
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Affiliation(s)
- Min Long
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85281, United States
| | - Chen-Wei Zheng
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85281, United States
| | - Manuel A Roldan
- Eyring Materials Center, Arizona State University, Tempe, Arizona 85281, United States
| | - Chen Zhou
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85281, United States
- Institute for the Environment and Health, Nanjing University, Suzhou Campus, Suzhou 215163, China
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85281, United States
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3
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Bounaga A, Alsanea A, Danouche M, Rittmann BE, Zhou C, Boulif R, Zeroual Y, Benhida R, Lyamlouli K. Elemental sulfur biorecovery from phosphogypsum using oxygen-membrane biofilm reactor: Bioreactor parameters optimization, metagenomic analysis and metabolic prediction of the biofilm activity. Bioresour Technol 2024; 400:130680. [PMID: 38593965 DOI: 10.1016/j.biortech.2024.130680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 04/06/2024] [Accepted: 04/06/2024] [Indexed: 04/11/2024]
Abstract
This work investigated elemental sulfur (S0) biorecovery from Phosphogypsum (PG) using sulfur-oxidizing bacteria in an O2-based membrane biofilm reactor (MBfR). The system was first optimized using synthetic sulfide medium (SSM) as influent, then switched to biogenic sulfide medium (BSM) generated by biological reduction of PG alkaline leachate. The results using SSM had high sulfide-oxidation efficiency (98 %), sulfide to S0 conversion (∼90 %), and S0 production rate up to 2.7 g S0/(m2.d), when the O2/S ratio was ∼0.5 g O2/g S. With the BSM influent, the system maintained high sulfide-to-S0 conversion rate (97 %), and S0-production rate of 1.6 g S0/(m2.d). Metagenomic analysis revealed that Thauera was the dominant genus in SSM and BSM biofilms. Furthermore, influent composition affected the bacterial community structure and abundances of functional microbial sulfur genes, modifying the sulfur-transformation pathways in the biofilms. Overall, this work shows promise for O2-MBfR usage in S0 biorecovery from PG-leachate and other sulfidogenic effluents.
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Affiliation(s)
- Ayoub Bounaga
- Department of Chemical & Biochemical Sciences-Green Process Engineering (CBS), Mohammed VI Polytechnic University, Benguerir 43150, Morocco; Biodesign Swette Center for Environmental Biotechnology, Arizona State University, P.O. Box 875017, Tempe, AZ 85287-5701, USA
| | - Anwar Alsanea
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, P.O. Box 875017, Tempe, AZ 85287-5701, USA
| | - Mohammed Danouche
- Department of Chemical & Biochemical Sciences-Green Process Engineering (CBS), Mohammed VI Polytechnic University, Benguerir 43150, Morocco
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, P.O. Box 875017, Tempe, AZ 85287-5701, USA
| | - Chen Zhou
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, P.O. Box 875017, Tempe, AZ 85287-5701, USA
| | - Rachid Boulif
- Department of Chemical & Biochemical Sciences-Green Process Engineering (CBS), Mohammed VI Polytechnic University, Benguerir 43150, Morocco
| | - Youssef Zeroual
- Situation Innovation, OCP Group, BP 118, Jorf Lasfar El Jadida, 24000, Morocco
| | - Rachid Benhida
- Department of Chemical & Biochemical Sciences-Green Process Engineering (CBS), Mohammed VI Polytechnic University, Benguerir 43150, Morocco; Institute of Chemistry, Nice UMR7272, Côte d'Azur University, French National Centre for Scientific Research (CNRS), Nice, France
| | - Karim Lyamlouli
- College of Sustainable Agriculture and Environmental Sciences, Agrobioscience Program, Mohammed VI Polytechnic University, Benguerir 43150, Morocco.
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Seagren EA, Hollander DJ, Stahl DA, Rittmann BE. An integrated evaluation of bioenhanced in situ LNAPL dissolution. J Contam Hydrol 2024; 264:104338. [PMID: 38692145 DOI: 10.1016/j.jconhyd.2024.104338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 02/29/2024] [Accepted: 03/25/2024] [Indexed: 05/03/2024]
Abstract
Performance evaluation of in situ bioremediation processes in the field is difficult due to uncertainty created by matrix and contaminant heterogeneity, inaccessibility to direct observation, expense of sampling, and limitations of some measurements. The goal of this research was to develop a strategy for evaluating in situ bioremediation of light nonaqueous-phase liquid (LNAPL) contamination and demonstrating the occurrence of bioenhanced LNAPL dissolution by: (1) integrating a suite of analyses into a rational evaluation strategy; and (2) demonstrating the strategy's application in intermediate-scale flow-cell (ISFC) experiments simulating an aquifer contaminated with a pool of LNAPL (naphthalene dissolved in dodecane). Two ISFCs were operated to evaluate how the monitored parameters changed between a "no bioremediation" scenario and an "intrinsic in situ bioremediation" scenario. Key was incorporating different measures of microbial activity and contaminant degradation relevant to bioremediation: contaminant loss; consumption of electron acceptors; and changes in total alkalinity, pH, dissolved total inorganic carbon, carbon-stable isotopes, microorganisms, and intermediate metabolites. These measurements were integrated via mass-flux modeling and mass-balance analyses to document that in situ biodegradation of naphthalene was strongly accelerated in the "intrinsic in situ bioremediation" scenario versus "no bioremediation." Furthermore, the integrated strategy provided consistent evidence of bioenhancement of LNAPL dissolution through intrinsic bioremediation by a factor of approximately 2 due to the biodegradation of the naphthalene near the pool/water interface.
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Affiliation(s)
- Eric A Seagren
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL 60208, USA.
| | - David J Hollander
- Department of Earth and Planetary Sciences, Northwestern University, Evanston, IL 60208, USA
| | - David A Stahl
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL 60208, USA
| | - Bruce E Rittmann
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL 60208, USA
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Chen Z, Wu Y, Dolfing J, Zhuang S, Wang B, Li D, Huang S, Rittmann BE. Complex ammonium oxidation demands visualized resolution. Sci Bull (Beijing) 2024:S2095-9273(24)00210-X. [PMID: 38604937 DOI: 10.1016/j.scib.2024.03.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Affiliation(s)
- Zhihao Chen
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; Zigui Three Gorges Reservoir Ecosystem, Observation and Research Station of Ministry of Water Resources of the People's Republic of China, Yichang 443605, China; University of Chinese Academy of Sciences, Beijing 100049, China; College of Nanjing, University of Chinese Academy of Sciences, Nanjing 211135, China
| | - Yonghong Wu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; Zigui Three Gorges Reservoir Ecosystem, Observation and Research Station of Ministry of Water Resources of the People's Republic of China, Yichang 443605, China; College of Nanjing, University of Chinese Academy of Sciences, Nanjing 211135, China.
| | - Jan Dolfing
- Faculty of Energy and Environment, Northumbria University, Newcastle-upon-Tyne NE1 8QH, UK
| | - Shunyao Zhuang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; College of Nanjing, University of Chinese Academy of Sciences, Nanjing 211135, China
| | - Baozhan Wang
- Department of Microbiology, College of Life Sciences, Nanjing Agricultural University, Key Laboratory of Agricultural and Environmental Microbiology, Ministry of Agriculture and Rural Affairs, Nanjing 210095, China
| | - Dan Li
- College of Urban Construction, Nanjing Tech University, Nanjing 211816, China
| | - Shan Huang
- Department of Civil and Environmental Engineering, Princeton University, Princeton NJ 08540, USA
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe AZ 85287-5701, USA
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6
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Chen S, Zhu X, Zhu G, Liang B, Luo J, Zhu D, Chen L, Zhang Y, Rittmann BE. N-methyl pyrrolidone manufacturing wastewater as the electron donor for denitrification: From bench to pilot scale. Sci Total Environ 2024; 912:169517. [PMID: 38142007 DOI: 10.1016/j.scitotenv.2023.169517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 11/30/2023] [Accepted: 12/17/2023] [Indexed: 12/25/2023]
Abstract
Actual wastewater generated from N-methylpyrrolidone (NMP) manufacture was used as electron donor for tertiary denitrification. The organic components of NMP wastewater were mainly NMP and monomethylamine (CH3NH2), and their biodegradation released ammonium that was nitrified to nitrate that also had to be denitrified. Bench-scale experiments documented that alternating denitrification and nitrification realized effective total‑nitrogen removal. Ammonium released from NMP was nitrified in the aerobic reactor and then denitrified when actual NMP wastewater was used as the electron donor for endogenous and exogenous nitrate. Whereas TN and NMP removals occurred in the denitrification step, dissolved organic carbon (DOC) and CH3NH2 removals occurred in the denitrification and nitrification stages. The genera Thauera and Paracoccus were important for NMP biodegradation and denitrification in the denitrification reactor; in the nitrification stage, Amaricoccus and Sphingobium played key roles for biodegrading intermediates of NMP, while Nitrospira was responsible for NH4+ oxidation to NO3-. Pilot-scale demonstration was achieved in a two-stage vertical baffled bioreactor (VBBR) in which total‑nitrogen removal was realized sequential anoxic-oxic treatment without biomass recycle. Although the bench-scale reactors and the VBBR had different configurations, both effectively removed total nitrogen through the same mechanisms. Thus, an N-containing organic compound in an industrial wastewater could be used to drive total-N removal in a tertiary-treatment scenario.
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Affiliation(s)
- Songyun Chen
- Department of Environmental Engineering, School of Environmental and Geographical Science, Shanghai Normal University, Shanghai 200234, PR China
| | - Xiaohui Zhu
- Department of Environmental Engineering, School of Environmental and Geographical Science, Shanghai Normal University, Shanghai 200234, PR China
| | - Ge Zhu
- Department of Environmental Engineering, School of Environmental and Geographical Science, Shanghai Normal University, Shanghai 200234, PR China
| | - Bin Liang
- MYJ Chemical Co., Ltd., Puyang, Henan 457000, PR China
| | - Jin Luo
- Department of Environmental Engineering, School of Environmental and Geographical Science, Shanghai Normal University, Shanghai 200234, PR China
| | - Danyang Zhu
- Department of Environmental Engineering, School of Environmental and Geographical Science, Shanghai Normal University, Shanghai 200234, PR China
| | - Linlin Chen
- Department of Environmental Engineering, School of Environmental and Geographical Science, Shanghai Normal University, Shanghai 200234, PR China.
| | - Yongming Zhang
- Department of Environmental Engineering, School of Environmental and Geographical Science, Shanghai Normal University, Shanghai 200234, PR China.
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ 85287-5701, USA
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Zheng CW, Lai YS, Luo YH, Cai Y, Wu W, Rittmann BE. A two-stage design enhanced biodegradation of high concentrations of a C16-alkyl quaternary ammonium compound in oxygen-based membrane biofilm reactors. Water Res 2024; 250:120963. [PMID: 38118251 DOI: 10.1016/j.watres.2023.120963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 11/24/2023] [Accepted: 12/01/2023] [Indexed: 12/22/2023]
Abstract
Quaternary ammonia compounds (QAC), such as hexadecyltrimethyl-ammonium (CTAB), are widely used as disinfectants and in personal-care products. Their use as disinfectants grew during the SARS-CoV-2 (COVID-19) pandemic, leading to increased loads to wastewater treatment systems and the environment. Though low concentrations of CTAB are biodegradable, high concentrations are toxic to bacteria. Sufficient O2 delivery is a key to achieve high CTAB removal, and the O2-based Membrane Biofilm Reactor (O2-MBfR) is a proven means to biodegrade CTAB in a bubble-free, non-foaming manner. A strategy for achieving complete biodegradation of high-concentrations of CTAB is a two-stage O2-MBfR, in which partial CTAB removal in the Lead reactor relieves inhibition in the Lag reactor. Here, more than 98 % removal of 728 mg/L CTAB could be achieved in the two-stage MBfR, and the CTAB-removal rate was 70 % higher than for a one-stage MBfR with the same O2-delivery capacity. CTAB exposure shifted the bacterial community toward Pseudomonas and Stenotrophomonas as the dominant genera. In particular, P. alcaligenes and P. aeruginosa were enriched in the Lag reactor, as they were capable of biodegrading the metabolites of initial CTAB monooxygenation. Metagenomic analysis also revealed that the Lag reactor was enriched in genes for CTAB and metabolite oxygenation, due to reduced CTAB inhibition.
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Affiliation(s)
- Chen-Wei Zheng
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, USA
| | - YenJung Sean Lai
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, USA.
| | - Yi-Hao Luo
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, USA; Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Arizona State University, Tempe, AZ, USA; Engineering Lab for Water Pollution Control and Resources Recovery of Jilin Province, School of Environment, Northeast Normal University, Changchun 130117, China
| | - Yuhang Cai
- Engineering Lab for Water Pollution Control and Resources Recovery of Jilin Province, School of Environment, Northeast Normal University, Changchun 130117, China
| | - Weiyu Wu
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, USA
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, USA
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8
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Wu C, Zhou J, Pang S, Yang L, Lichtfouse E, Liu H, Xia S, Rittmann BE. Reduction and precipitation of chromium(VI) using a palladized membrane biofilm reactor. Water Res 2024; 249:120878. [PMID: 38007896 DOI: 10.1016/j.watres.2023.120878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 10/27/2023] [Accepted: 11/14/2023] [Indexed: 11/28/2023]
Abstract
H2-driven reduction of hexavalent chromium (Cr(VI)) using precious-metal catalysts is promising, but its implementation in water treatment has been restricted by poor H2-transfer efficiency and high catalyst loss. We investigated the reduction of Cr(VI) through hydrogenation catalyzed by elemental-palladium nanoparticles (PdNPs) generated in-situ within biofilm of a membrane biofilm reactor (MBfR), creating a Pd-MBfR. Experiments were conducted using a Pd-MBfR and a non-Pd MBfR. The Pd-MBfR achieved Cr(VI) (1000 μg L-1) reduction of >99 % and reduced the concentration of total Cr to below 50 μg L-1, much lower than the total Cr concentration in the non-Pd MBfR effluent (290 μg L-1). The Pd-MBfR also had a lower concentration of dissolved organic compounds compared to the non-Pd MBfR, which minimized the formation of soluble organo-Cr(III) complexes and promoted precipitation of Cr(OH)3. Solid-state characterizations documented deposition of Cr(OH)3 as the product of Cr(VI) reduction in the Pd-MBfR. Metagenomic analyses revealed that the addition and reduction of Cr(VI) had minimal impact on the microbial community (dominated by Dechloromonas) and functional genes in the biofilm of the Pd-MBfR, since the PdNP-catalyzed reduction process was rapid. This study documented efficient Cr(VI) reduction and precipitation of Cr(OH)3 by the Pd-MBfR technology.
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Affiliation(s)
- Chengyang Wu
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, China
| | - Jingzhou Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, China
| | - Si Pang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, China
| | - Lin Yang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, China
| | - Eric Lichtfouse
- Aix-Marseille Univ, CNRS, IRD, INRA, Coll France, CEREGE, Aix-en-Provence 13100, France
| | - Hongbo Liu
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, China.
| | - Siqing Xia
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, China
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, 727 Tyler Road, Tempe, USA
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Godar AG, Chase T, Conway D, Ravichandran D, Woodson I, Lai YJ, Song K, Rittmann BE, Wang X, Nielsen DR. 'Dark' CO 2 fixation in succinate fermentations enabled by direct CO 2 delivery via hollow fiber membrane carbonation. Bioprocess Biosyst Eng 2024; 47:223-233. [PMID: 38142425 DOI: 10.1007/s00449-023-02957-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 11/26/2023] [Indexed: 12/26/2023]
Abstract
Anaerobic succinate fermentations can achieve high-titer, high-yield performance while fixing CO2 through the reductive branch of the tricarboxylic acid cycle. To provide the needed CO2, conventional media is supplemented with significant (up to 60 g/L) bicarbonate (HCO3-), and/or carbonate (CO32-) salts. However, producing these salts from CO2 and natural ores is thermodynamically unfavorable and, thus, energetically costly, which reduces the overall sustainability of the process. Here, a series of composite hollow fiber membranes (HFMs) were first fabricated, after which comprehensive CO2 mass transfer measurements were performed under cell-free conditions using a novel, constant-pH method. Lumen pressure and total HFM surface area were found to be linearly correlated with the flux and volumetric rate of CO2 delivery, respectively. Novel HFM bioreactors were then constructed and used to comprehensively investigate the effects of modulating the CO2 delivery rate on succinate fermentations by engineered Escherichia coli. Through appropriate tuning of the design and operating conditions, it was ultimately possible to produce up to 64.5 g/L succinate at a glucose yield of 0.68 g/g; performance approaching that of control fermentations with directly added HCO3-/CO32- salts and on par with prior studies. HFMs were further found to demonstrate a high potential for repeated reuse. Overall, HFM-based CO2 delivery represents a viable alternative to the addition of HCO3-/CO32- salts to succinate fermentations, and likely other 'dark' CO2-fixing fermentations.
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Affiliation(s)
- Amanda G Godar
- School of Life Sciences, Arizona State University, Tempe, AZ, USA
| | - Timothy Chase
- School for Engineering of Matter, Transport and Energy, Arizona State University, BDC C499C, Tempe, AZ, 85282, USA
| | - Dalton Conway
- School for Engineering of Matter, Transport and Energy, Arizona State University, BDC C499C, Tempe, AZ, 85282, USA
| | | | - Isaiah Woodson
- School for Engineering of Matter, Transport and Energy, Arizona State University, BDC C499C, Tempe, AZ, 85282, USA
| | - Yen-Jung Lai
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, USA
| | - Kenan Song
- School of Manufacturing Systems and Networks, Arizona State University, Tempe, AZ, USA
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, USA
- School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ, USA
| | - Xuan Wang
- School of Life Sciences, Arizona State University, Tempe, AZ, USA
| | - David R Nielsen
- School for Engineering of Matter, Transport and Energy, Arizona State University, BDC C499C, Tempe, AZ, 85282, USA.
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10
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Long M, Chen Y, Senftle TP, Elias W, Heck K, Zhou C, Wong MS, Rittmann BE. Method of H 2 Transfer Is Vital for Catalytic Hydrodefluorination of Perfluorooctanoic Acid (PFOA). Environ Sci Technol 2024; 58:1390-1398. [PMID: 38165826 DOI: 10.1021/acs.est.3c07650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2024]
Abstract
The efficient transfer of H2 plays a critical role in catalytic hydrogenation, particularly for the removal of recalcitrant contaminants from water. One of the most persistent contaminants, perfluorooctanoic acid (PFOA), was used to investigate how the method of H2 transfer affected the catalytic hydrodefluorination ability of elemental palladium nanoparticles (Pd0NPs). Pd0NPs were synthesized through an in situ autocatalytic reduction of Pd2+ driven by H2 from the membrane. The Pd0 nanoparticles were directly deposited onto the membrane fibers to form the catalyst film. Direct delivery of H2 to Pd0NPs through the walls of nonporous gas transfer membranes enhanced the hydrodefluorination of PFOA, compared to delivering H2 through the headspace. A higher H2 lumen pressure (20 vs 5 psig) also significantly increased the defluorination rate, although 5 psig H2 flux was sufficient for full reductive defluorination of PFOA. Calculations made using density functional theory (DFT) suggest that subsurface hydrogen delivered directly from the membrane increases and accelerates hydrodefluorination by creating a higher coverage of reactive hydrogen species on the Pd0NP catalyst compared to H2 delivery through the headspace. This study documents the crucial role of the H2 transfer method in the catalytic hydrogenation of PFOA and provides mechanistic insights into how membrane delivery accelerates hydrodefluorination.
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Affiliation(s)
- Min Long
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Yu Chen
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Houston, Texas 77005, United States
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
| | - Thomas P Senftle
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Houston, Texas 77005, United States
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
| | - Welman Elias
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Houston, Texas 77005, United States
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
| | - Kimberly Heck
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Houston, Texas 77005, United States
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
| | - Chen Zhou
- Institute for the Environment and Health, Nanjing University, Suzhou Campus, Suzhou 215163, China
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Michael S Wong
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Houston, Texas 77005, United States
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287, United States
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11
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Lin M, Pan C, Qian C, Tang F, Zhao S, Guo J, Zhang Y, Song J, Rittmann BE. Core taxa, co-occurrence pattern, diversity, and metabolic pathways contributing to robust anaerobic biodegradation of chlorophenol. Environ Res 2024; 241:117591. [PMID: 37926226 DOI: 10.1016/j.envres.2023.117591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 10/28/2023] [Accepted: 11/02/2023] [Indexed: 11/07/2023]
Abstract
It is hard to achieve robustness in anaerobic biodegradation of trichlorophenol (TCP). We hypothesized that specific combinations of environmental factors determine phylogenetic diversity and play important roles in the decomposition and stability of TCP-biodegrading bacteria. The anaerobic bioreactor was operated at 35 °C (H condition) or 30 °C (L condition) and mainly fed with TCP (from 28 μM to 180 μM) and organic material. Metagenome sequencing was combined with 16S rRNA gene amplicon sequencing for the microbial community analysis. The results exhibited that the property of robustness occurred in specific conditions. The corresponding co-occurrence and diversity patterns suggest high collectivization, degree and evenness for robust communities. Two types of core functional taxa were recognized: dechlorinators (unclassified Anaerolineae, Thermanaerothrix and Desulfovibrio) and ring-opening members (unclassified Proteobacteria, Methanosarcina, Methanoperedens, and Rubrobacter). The deterministic process of the expansion of niche of syntrophic bacteria at higher temperatures was confirmed. The reductive and hydrolytic dechlorination mechanisms jointly lead to C-Cl bond cleavage. H ultimately adapted to the stress of high TCP loading, with more abundant ring-opening enzyme (EC 3.1.1.45, ∼55%) and hydrolytic dechlorinase (EC 3.8.1.5, 26.5%) genes than L (∼47%, 10.5%). The functional structure (based on KEGG) in H was highly stable despite the high loading of TCP (up to 60 μM), but not in L. Furthermore, an unknown taxon with multiple functions (dechlorinating and ring-opening) was found based on genetic sequencing; its functional contribution of EC 3.8.1.5 in H (26.5%) was higher than that in L (10.5%), and it possessed a new metabolic pathway for biodegradation of halogenated aromatic compounds. This new finding is supplementary to the robust mechanisms underlying organic chlorine biodegradation, which can be used to support the engineering, regulation, and design of synthetic microbiomes.
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Affiliation(s)
- Ming Lin
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai, 200234, PR China; Yangtze River Delta Urban Wetland Ecosystem National Field Scientific Observation and Research Station, Shanghai, 200234, PR China
| | - Chenhui Pan
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai, 200234, PR China; Yangtze River Delta Urban Wetland Ecosystem National Field Scientific Observation and Research Station, Shanghai, 200234, PR China
| | - Chenyi Qian
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai, 200234, PR China; Yangtze River Delta Urban Wetland Ecosystem National Field Scientific Observation and Research Station, Shanghai, 200234, PR China
| | - Fei Tang
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai, 200234, PR China; Yangtze River Delta Urban Wetland Ecosystem National Field Scientific Observation and Research Station, Shanghai, 200234, PR China
| | - Siwen Zhao
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai, 200234, PR China; Yangtze River Delta Urban Wetland Ecosystem National Field Scientific Observation and Research Station, Shanghai, 200234, PR China
| | - Jun Guo
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai, 200234, PR China; Department of Environmental Science and Engineering, Fudan University, Shanghai, 200238, PR China
| | - Yongming Zhang
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai, 200234, PR China; Yangtze River Delta Urban Wetland Ecosystem National Field Scientific Observation and Research Station, Shanghai, 200234, PR China
| | - Jiaxiu Song
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai, 200234, PR China; Yangtze River Delta Urban Wetland Ecosystem National Field Scientific Observation and Research Station, Shanghai, 200234, PR China.
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, 85287-5701, USA
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12
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Zhou Y, Wu B, Cui X, Ren T, Ran T, Rittmann BE. Mass Flow and Metabolic Pathway of Nonaeration Greywater Treatment in an Oxygenic Microalgal-Bacterial Biofilm. Environ Sci Technol 2024; 58:534-544. [PMID: 38108291 DOI: 10.1021/acs.est.3c06049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
A symbiotic microalgal-bacterial biofilm can enable efficient carbon (C) and nitrogen (N) removal during aeration-free wastewater treatment. However, the contributions of microalgae and bacteria to C and N removal remain unexplored. Here, we developed a baffled oxygenic microalgal-bacterial biofilm reactor (MBBfR) for the nonaerated treatment of greywater. A hydraulic retention time (HRT) of 6 h gave the highest biomass concentration and biofilm thickness as well as the maximum removal of chemical oxygen demand (94.8%), linear alkylbenzenesulfonates (LAS, 99.7%), and total nitrogen (97.4%). An HRT of 4 h caused a decline in all of the performance metrics due to LAS biotoxicity. Most of C (92.6%) and N (95.7%) removals were ultimately associated with newly synthesized biomass, with only minor fractions transformed into CO2 (2.2%) and N2 (1.7%) on the function of multifarious-related enzymes in the symbiotic biofilm. Specifically, microalgae photosynthesis contributed to the removal of C and N at 75.3 and 79.0%, respectively, which accounted for 17.3% (C) and 16.7% (N) by bacteria assimilation. Oxygen produced by microalgae favored the efficient organics mineralization and CO2 supply by bacteria. The symbiotic biofilm system achieved stable and efficient removal of C and N during greywater treatment, thus providing a novel technology to achieve low-energy-input wastewater treatment, reuse, and resource recovery.
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Affiliation(s)
- Yun Zhou
- College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Beibei Wu
- College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiaocai Cui
- College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Tian Ren
- College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Ting Ran
- College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287-5701, United States
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13
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Chi Z, Liu X, Li H, Liang S, Luo YH, Zhou C, Rittmann BE. Co-metabolic biodegradation of chlorinated ethene in an oxygen- and ethane-based membrane biofilm reactor. Sci Total Environ 2023; 905:167323. [PMID: 37742949 DOI: 10.1016/j.scitotenv.2023.167323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 09/15/2023] [Accepted: 09/22/2023] [Indexed: 09/26/2023]
Abstract
Groundwater contamination by chlorinated ethenes is an urgent concern worldwide. One approach for detoxifying chlorinated ethenes is aerobic co-metabilims using ethane (C2H6) as the primary substrate. This study evaluated long-term continuous biodegradation of three chlorinated alkenes in a membrane biofilm reactor (MBfR) that delivered C2H6 and O2 via gas-transfer membranes. During 133 days of continuous operation, removals of dichloroethane (DCE), trichloroethene (TCE), and tetrachloroethene (PCE) were as high as 94 % and with effluent concentrations below 5 μM. In situ batch tests showed that the co-metabolic kinetics were faster with more chlorination. C2H6-oxidizing Comamonadaceae and "others," such as Methylococcaceae, oxidized C2H6 via monooxyenation reactions. The abundant non-ethane monooxygenases, particularly propane monooxygenase, appears to have been responsible for C2H6 aerobic metabolism and co-metabolism of chlorinated ethenes. This work proves that the C2H6 + O2 MBfR is a platform for ex-situ bioremediation of chlorinated ethenes, and the generalized action of the monooxygenases may make it applicable for other chlorinated organic contaminants.
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Affiliation(s)
- Zifang Chi
- Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, PR China
| | - Xinyang Liu
- Key Lab of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, PR China
| | - Huai Li
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, PR China.
| | - Shen Liang
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, PR China
| | - Yi-Hao Luo
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, P.O. Box 875701, Tempe, AZ 85287-5701, USA; Engineering Lab for Water Pollution Control and Resources Recovery of Jilin Province, School of Environment, Northeast Normal University, Changchun 130117, PR China.
| | - Chen Zhou
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, P.O. Box 875701, Tempe, AZ 85287-5701, USA
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, P.O. Box 875701, Tempe, AZ 85287-5701, USA
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14
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Long M, Zhou C, Zheng X, Rittmann BE. Reduction of Chromate via Biotic and Abiotic Pathways in the Presence of Three Co-contaminating Electron Acceptors. Environ Sci Technol 2023; 57:21190-21199. [PMID: 38051765 DOI: 10.1021/acs.est.3c04812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
Bioreduction of Cr(VI) to Cr(III) is a promising technology for removing Cr(VI), but Cr(VI) reduction alone cannot support microbial growth. This study investigated the reduction of Cr(VI) in the presence of three electron acceptors that typically coexist with Cr(VI): NO3-, SO42-, and Fe(III). All three systems could reduce Cr(VI) to Cr(III), but the fate of Cr, its impacts on reduction of the other acceptors, and its impact on the microbial community differed. Although Cr(VI) was continuously removed in the NO3--reduction systems, batch tests showed that denitrification was inhibited primarily through impeding nitrite reduction. The SO42- and Fe(III) reduction systems reduced Cr(VI) using a combination of biotic and abiotic processes. Across all three systems, the abundance of genera capable of reducing Cr(VI) increased following the introduction of Cr(VI). Conversely, the abundance of genera that cannot reduce or resist Cr(VI) decreased, leading to restructuring of the microbial community. Furthermore, the abundance of sulfide oxidizers and Fe(II) oxidizers substantially increased after the introduction of chromate. This study provides fundamental knowledge about how Cr(VI) bioreduction interacts with bioreductions of three other co-contaminating electron acceptors.
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Affiliation(s)
- Min Long
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287, United States
| | - Chen Zhou
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287, United States
| | - Xiong Zheng
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287, United States
- School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, Arizona 85287, United States
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15
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Bounaga A, Alsanea A, Danouche M, Rittmann BE, Zhou C, Boulif R, Zeroual Y, Benhida R, Lyamlouli K. Effect of alkaline leaching of phosphogypsum on sulfate reduction activity and bacterial community composition using different sources of anaerobic microbial inoculum. Sci Total Environ 2023; 904:166296. [PMID: 37591387 DOI: 10.1016/j.scitotenv.2023.166296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 07/17/2023] [Accepted: 08/12/2023] [Indexed: 08/19/2023]
Abstract
Phosphogypsum (PG), a by-product of the phosphate industry, is high in sulfate, (SO42-), which makes it an excellent substrate for sulfate-reducing bacteria (SRB) to produce hydrogen sulfide. This work aimed to optimize SO42- leaching from PG to achieve a high biological reduction of SO42- and generate high sulfide concentrations for subsequent use in the biological recovery of elemental sulfur. Five SRB consortia were isolated and enriched from: IS (Industrial sludges), MS (Marine sediments), WC (Winogradsky column), SNV (petroleum industry sediments) and PG (stored Phosphogypsum). The five consortia showed reduction activity when using PG leachate (with water) as source of SO42- and lactate, acetate, or glucose as the electron donor. The highest reduction rate (81.5 %) was registered using lactate and the IS consortium (81.5 %) followed by MS (79 %) and PG (71 %). To enhance the concentration of leached SO42- from PG for future utilization with the isolated consortia, PG was treated with NaOH solutions (2 % and 5 %). SO42- release of 97 % was achieved with a 5 % concentration and the resulting leachate was further diluted to target a SO42- concentration of 12.4 g·L-1 for utilization with the isolated consortia. Compared to water leachate, a significantly higher reduction rate was registered (2 g·L-1 of SO42) using the IS consortium, demonstrating limited inhibition effect of sulfide- concentration on SRB functionalities. Moreover, metagenomic analysis of the consortia revealed that using PG as a source of SO42- increased the abundance of Deltaproteobacteria, including known SRB like Desulfovibrio, Desulfomicrobium, and Desulfosporosinus, as well as novel SRB genera (Cupidesulfovibrio, Desulfocurvus, Desulfococcus) that showed, for the first time, significant potential as novel sulfate-reducers using PG as a SO42- source.
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Affiliation(s)
- Ayoub Bounaga
- Department of Chemical & Biochemical Sciences-Green Process Engineering (CBS), Mohammed VI Polytechnic University (UM6P), Benguerir, 43150, Morocco
| | - Anwar Alsanea
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, P.O. Box 875017, Tempe, AZ 85287-5701, USA
| | - Mohammed Danouche
- Department of Chemical & Biochemical Sciences-Green Process Engineering (CBS), Mohammed VI Polytechnic University (UM6P), Benguerir, 43150, Morocco
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, P.O. Box 875017, Tempe, AZ 85287-5701, USA
| | - Chen Zhou
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, P.O. Box 875017, Tempe, AZ 85287-5701, USA
| | - Rachid Boulif
- Department of Chemical & Biochemical Sciences-Green Process Engineering (CBS), Mohammed VI Polytechnic University (UM6P), Benguerir, 43150, Morocco
| | - Youssef Zeroual
- Situation Innovation, OCP Group BP 118, Jorf Lasfar El Jadida 24000, Morocco
| | - Rachid Benhida
- Department of Chemical & Biochemical Sciences-Green Process Engineering (CBS), Mohammed VI Polytechnic University (UM6P), Benguerir, 43150, Morocco; Institute of Chemistry, Nice UMR7272, Côte d'Azur University, French National Centre for Scientific Research (CNRS), Nice, France
| | - Karim Lyamlouli
- College of Sustainable Agriculture and Environmental Sciences, Agrobioscience program, Mohammed VI Polytechnic University, Benguerir 43150, Morocco.
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16
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Tan C, Chen S, Zhang H, Ma Y, Qu Z, Yan N, Zhang Y, Rittmann BE. The roles of Rhodococcus ruber in denitrification with quinoline as the electron donor. Sci Total Environ 2023; 902:166128. [PMID: 37562631 DOI: 10.1016/j.scitotenv.2023.166128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 05/19/2023] [Accepted: 08/06/2023] [Indexed: 08/12/2023]
Abstract
Denitrification is an important step in domestic wastewater treatment, but providing bioavailable electron donors is an expense. However, some industrial wastewaters contain organic compounds that could be a no-cost or low-cost electron donor, because they otherwise must be treated separately. In this work, quinoline was used as an electron donor to drive denitrification through bioaugmentation with Rhodococcus ruber, which is able to biodegrade quinoline. When quinoline-acclimated biomass (QAB) was used for denitrification, addition of R. ruber accelerated biodegradation of quinoline and its first mono-oxygenation intermediate (2-hydroxyquinoline). Although R. ruber was not directly active in denitrification, its biodegradation of quinoline and 2-hydroxyquinoline supplied products that other bacteria used to respire nitrate. In contrast, glucose-acclimated biomass (GAB) could not achieve effective denitrification with quinoline, whether or not R. ruber was added. Analysis by high-throughout sequencing showed that genera Ignavibacterium, Ferruginibacter, Limnobacter, and Denitrosoma were important during quinoline biodegradation with denitrification by QAB. In summary, bioaugmented R. ruber and endogenous bacterial strains had complementary roles when biodegrading quinoline to enhance denitrification. The significance of this study is to enable the use of industrial wastewater to provide electron donor to drive denitrification.
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Affiliation(s)
- Chong Tan
- Department of Environmental Engineering, School of Environmental and Geographical Science, Shanghai Normal University, Shanghai 200234, PR China
| | - Songyun Chen
- Department of Environmental Engineering, School of Environmental and Geographical Science, Shanghai Normal University, Shanghai 200234, PR China
| | - Haiyun Zhang
- Department of Environmental Engineering, School of Environmental and Geographical Science, Shanghai Normal University, Shanghai 200234, PR China
| | - Yue Ma
- Department of Environmental Engineering, School of Environmental and Geographical Science, Shanghai Normal University, Shanghai 200234, PR China
| | - Zhengye Qu
- Department of Environmental Engineering, School of Environmental and Geographical Science, Shanghai Normal University, Shanghai 200234, PR China
| | - Ning Yan
- Department of Environmental Engineering, School of Environmental and Geographical Science, Shanghai Normal University, Shanghai 200234, PR China.
| | - Yongming Zhang
- Department of Environmental Engineering, School of Environmental and Geographical Science, Shanghai Normal University, Shanghai 200234, PR China.
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ 85287-5701, USA
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17
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Tesfamariam EG, Luo YH, Zhou C, Ye M, Krajmalnik-Brown R, Rittmann BE, Tang Y. Simultaneous biodegradation kinetics of 1,4-dioxane and ethane. Biodegradation 2023:10.1007/s10532-023-10058-x. [PMID: 37917252 DOI: 10.1007/s10532-023-10058-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 09/29/2023] [Indexed: 11/04/2023]
Abstract
Biodegradation of 1,4-Dioxane at environmentally relevant concentrations usually requires the addition of a primary electron-donor substrate to sustain biomass growth. Ethane is a promising substrate, since it is available as a degradation product of 1,4-Dioxane's common co-contaminants. This study reports kinetic parameters for ethane biodegradation and co-oxidations of ethane and 1,4-Dioxane. Based on experiments combined with mathematical modeling, we found that ethane promoted 1,4-Dioxane biodegradation when the initial mass ratio of ethane:1,4-Dioxane was < 9:1 mg COD/mg COD, while it inhibited 1,4-Dioxane degradation when the ratio was > 9:1. A model-independent estimator was used for kinetic-parameter estimation, and all parameter values for 1,4-Dioxane were consistent with literature-reported ranges. Estimated parameters support competitive inhibition between ethane as the primary substrate and 1,4-Dioxane as the secondary substrate. The results also support that bacteria that co-oxidize ethane and 1,4-Dioxane had a competitive advantage over bacteria that can use only one of the two substrates. The minimum concentration of ethane to sustain ethane-oxidizing bacteria and ethane and 1,4-Dioxane-co-oxidizing bacteria was 0.09 mg COD/L, which is approximately 20-fold lower than the minimum concentration reported for propane, another common substrate used to promote 1,4-Dioxane biodegradation. The minimum 1,4-Dioxane concentration required to sustain steady-state biomass with 1,4-Dioxane as the sole primary substrate was 1.3 mg COD/L. As 1,4-Dioxane concentrations at most groundwater sites are less than 0.18 mg COD/L, providing ethane as a primary substrate is vital to support biomass growth and consequently enable 1,4-Dioxane bioremediation.
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Affiliation(s)
- Ermias Gebrekrstos Tesfamariam
- Department of Civil and Environmental Engineering, FAMU-FSU College of Engineering, Florida State University, 2525 Pottsdamer Street Suite A132, Tallahassee, FL, 32310, USA
| | - Yi-Hao Luo
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, 85281, USA
| | - Chen Zhou
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, 85281, USA
| | - Ming Ye
- Department of Earth, Ocean and Atmospheric Science, College of Arts and Sciences, Florida State University, Tallahassee, FL, 32304, USA
| | - Rosa Krajmalnik-Brown
- Biodesign Center for Health Through Microbiomes, Arizona State University, Tempe, AZ, 85281, USA
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, 85281, USA
| | - Youneng Tang
- Department of Civil and Environmental Engineering, FAMU-FSU College of Engineering, Florida State University, 2525 Pottsdamer Street Suite A132, Tallahassee, FL, 32310, USA.
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18
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Zheng CW, Luo YH, Lai YJS, Ilhan ZE, Ontiveros-Valencia A, Krajmalnik-Brown R, Jin Y, Gu H, Long X, Zhou D, Rittmann BE. Identifying biodegradation pathways of cetrimonium bromide (CTAB) using metagenome, metatranscriptome, and metabolome tri-omics integration. Water Res 2023; 246:120738. [PMID: 37866246 DOI: 10.1016/j.watres.2023.120738] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 09/23/2023] [Accepted: 10/11/2023] [Indexed: 10/24/2023]
Abstract
Traditional research on biodegradation of emerging organic pollutants involves slow and labor-intensive experimentation. Currently, fast-developing metagenome, metatranscriptome, and metabolome technologies promise to expedite mechanistic research on biodegradation of emerging organic pollutants. Integrating the metagenome, metatranscriptome, and metabolome (i.e., tri-omics) makes it possible to link gene abundance and expression with the biotransformation of the contaminant and the formation of metabolites from this biotransformation. In this study, we used this tri-omics approach to study the biotransformation pathways for cetyltrimethylammonium bromide (CTAB) under aerobic conditions. The tri-omics analysis showed that CTAB undergoes three parallel first-step mono-/di-oxygenations (to the α, β, and ω-carbons); intermediate metabolites and expressed enzymes were identified for all three pathways, and the β-carbon mono-/di-oxygenation is a novel pathway; and the genes related to CTAB biodegradation were associated with Pseudomonas spp. Four metabolites - palmitic acid, trimethylamine N-oxide (TMAO), myristic acid, and betaine - were the key identified biodegradation intermediates of CTAB, and they were associated with first-step mono-/di-oxygenations at the α/β-C. This tri-omics approach with CTAB demonstrates its power for identifying promising paths for future research on the biodegradation of complex organics by microbial communities.
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Affiliation(s)
- Chen-Wei Zheng
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, P.O. Box 875701, Tempe, AZ 85287-5701, USA
| | - Yi-Hao Luo
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, P.O. Box 875701, Tempe, AZ 85287-5701, USA; Engineering Lab for Water Pollution Control and Resources Recovery of Jilin Province, School of Environment, Northeast Normal University, Changchun 130117, China.
| | - Yen-Jung Sean Lai
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, P.O. Box 875701, Tempe, AZ 85287-5701, USA.
| | - Zehra Esra Ilhan
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, P.O. Box 875701, Tempe, AZ 85287-5701, USA; INRAE, Micalis Institute, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas 78350, France
| | - Aura Ontiveros-Valencia
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, P.O. Box 875701, Tempe, AZ 85287-5701, USA; Division de Ciencias Ambientales, Instituto Potosino de Investigación Científica y Tecnológica, Camino a la Presa de San José 2055, ZC, San Luis Potosí 78216, Mexico
| | - Rosa Krajmalnik-Brown
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, P.O. Box 875701, Tempe, AZ 85287-5701, USA; Biodesign Center for Health Through Microbiomes, Arizona State University, P.O. Box 875701, Tempe, AZ 85287-5701, USA
| | - Yan Jin
- Center for Translational Science, Florida International University, Port St. Lucie, FL 34987, USA
| | - Haiwei Gu
- Arizona Metabolomics Laboratory, College of Health Solutions, Arizona State University, Phoenix, AZ 85004, USA
| | - Xiangxing Long
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, P.O. Box 875701, Tempe, AZ 85287-5701, USA
| | - Dandan Zhou
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, P.O. Box 875701, Tempe, AZ 85287-5701, USA; Engineering Lab for Water Pollution Control and Resources Recovery of Jilin Province, School of Environment, Northeast Normal University, Changchun 130117, China
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, P.O. Box 875701, Tempe, AZ 85287-5701, USA
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Cheng J, Long M, Zhou C, Ilhan ZE, Calvo DC, Rittmann BE. Long-Term Continuous Test of H 2-Induced Denitrification Catalyzed by Palladium Nanoparticles in a Biofilm Matrix. Environ Sci Technol 2023; 57:11948-11957. [PMID: 37531623 DOI: 10.1021/acs.est.3c01268] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/04/2023]
Abstract
Pd0 catalysis and microbially catalyzed reduction of nitrate (NO3--N) were combined as a strategy to increase the kinetics of NO3- reduction and control selectivity to N2 gas versus ammonium (NH4+). Two H2-based membrane biofilm reactors (MBfRs) were tested in continuous mode: one with a biofilm alone (H2-MBfR) and the other with biogenic Pd0 nanoparticles (Pd0NPs) deposited in the biofilm (Pd-H2-MBfR). Solid-state characterizations of Pd0NPs in Pd-H2-MBfR documented that the Pd0NPs were uniformly located along the outer surfaces of the bacteria in the biofilm. Pd-H2-MBfR had a higher rate of NO3- reduction compared to H2-MBfR, especially when the influent NO3- concentration was high (28 mg-N/L versus 14 mg-N/L). Pd-H2-MBfR enriched denitrifiers of Dechloromonas, Azospira, Pseudomonas, and Stenotrophomonas in the microbial community and also increased abundances of genes affiliated with NO3--N reductases, which reflected that the denitrifying bacteria could channel their respiratory electron flow to NO3- reduction to NO2-. N2 selectivity in Pd-H2-MBfR was regulated by the H2/NO3- flux ratio: 100% selectivity to N2 was achieved when the ratio was less than 1.3 e- equiv of H2/e- equiv N, while the selectivity toward NH4+ occurred with larger H2/NO3- flux ratios. Thus, the results with Pd-H2-MBfR revealed two advantages of it over the H2-MBfR: faster kinetics for NO3- removal and controllable selectivity toward N2 versus NH4+. By being able to regulate the H2/NO3- flux ratio, Pd-H2-MBfR has significant implications for improving the efficiency and effectiveness of the NO3- reduction processes, ultimately leading to more environmentally benign wastewater treatment.
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Affiliation(s)
- Jie Cheng
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287, United States
| | - Min Long
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287, United States
| | - Chen Zhou
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287, United States
| | - Zehra-Esra Ilhan
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287, United States
- INRAE, Micalis Institute, Université Paris-Saclay, AgroParisTech, Jouy-en-Josas 78350, France
| | - Diana C Calvo
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287, United States
- Department of Civil Engineering, Construction Management and Environmental Engineering, Northern Arizona University, Flagstaff, Arizona 86011, United States
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287, United States
- School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, Arizona 85287, United States
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20
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Zheng CW, Luo YH, Long X, Gu H, Cheng J, Zhang L, Lai YJS, Rittmann BE. The structure of biodegradable surfactants shaped the microbial community, antimicrobial resistance, and potential for horizontal gene transfer. Water Res 2023; 236:119944. [PMID: 37087920 DOI: 10.1016/j.watres.2023.119944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 03/28/2023] [Accepted: 04/04/2023] [Indexed: 05/03/2023]
Abstract
While most household surfactants are biodegradable in aerobic conditions, their biodegradability may obscure their environmental risks. The presence of surfactants in a biological treatment process can lead to the proliferation of antimicrobial-resistance genes (ARG) in the biomass. Surfactants can be cationic, anionic, or zwitterionic, and these different classes may have different effects on the proliferation ARG. Cationic hexadecyltrimethyl-ammonium (CTAB), anionic sodium dodecyl sulfate (SDS), and zwitterionic 3-(decyldimethylammonio)-propanesulfonate inner salt (DAPS) were used to represent the three classes of surfactants in domestic household clean-up products. This study focused on the removal of these surfactants by the O2-based Membrane Biofilm Reactor (O2-MBfR) for hotspot scenarios (∼1 mM) and how the three classes of surfactants affected the microbial community's structure and ARG. Given sufficient O2 delivery, the MBfR provided at least 98% surfactant removal. The presence and biodegradation for each surfactant uniquely shaped the biofilms' microbial communities and the presence of ARG. CTAB had by far the strongest impact and the higher ARG abundance. In particular, Pseudomonas and Stenotrophomonas, the two main genera in the biofilm treating CTAB, were highly correlated to the abundance of ARG for efflux pumps and antibiotic inactivation. CTAB also led to more functional genes relevant to the Type-IV secretion system and protection against oxidative stress, which also could encourage horizontal gene transfer. Our findings highlight that the biodegradation of quaternary ammonium surfactants, while beneficial, can pose public health concerns from its ability to promote the proliferation of ARG.
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Affiliation(s)
- Chen-Wei Zheng
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, 1001 S McAllister Ave, Tempe, AZ 85287-5701, United States
| | - Yi-Hao Luo
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, 1001 S McAllister Ave, Tempe, AZ 85287-5701, United States; Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Arizona State University, Tempe, AZ, United States
| | - Xiangxing Long
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, 1001 S McAllister Ave, Tempe, AZ 85287-5701, United States; Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Arizona State University, Tempe, AZ, United States
| | - Haiwei Gu
- Arizona Metabolomics Laboratory, College of Health Solutions, Arizona State University, Phoenix, AZ 85004, United States; Center for Translational Science, Florida International University, Port St. Lucie, FL 34987, United States
| | - Jie Cheng
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, 1001 S McAllister Ave, Tempe, AZ 85287-5701, United States
| | - Lei Zhang
- DeepBiome. Co. Ltd., NO.38 Debao Road, China (Shanghai) Pilot Free Trade Zone, Shanghai 200031, China
| | - Yen Jung Sean Lai
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, 1001 S McAllister Ave, Tempe, AZ 85287-5701, United States.
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, 1001 S McAllister Ave, Tempe, AZ 85287-5701, United States
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21
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Corbin KD, Carnero EA, Dirks B, Igudesman D, Yi F, Marcus A, Davis TL, Pratley RE, Rittmann BE, Krajmalnik-Brown R, Smith SR. Host-diet-gut microbiome interactions influence human energy balance: a randomized clinical trial. Nat Commun 2023; 14:3161. [PMID: 37258525 PMCID: PMC10232526 DOI: 10.1038/s41467-023-38778-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 05/12/2023] [Indexed: 06/02/2023] Open
Abstract
The gut microbiome is emerging as a key modulator of human energy balance. Prior studies in humans lacked the environmental and dietary controls and precision required to quantitatively evaluate the contributions of the gut microbiome. Using a Microbiome Enhancer Diet (MBD) designed to deliver more dietary substrates to the colon and therefore modulate the gut microbiome, we quantified microbial and host contributions to human energy balance in a controlled feeding study with a randomized crossover design in young, healthy, weight stable males and females (NCT02939703). In a metabolic ward where the environment was strictly controlled, we measured energy intake, energy expenditure, and energy output (fecal and urinary). The primary endpoint was the within-participant difference in host metabolizable energy between experimental conditions [Control, Western Diet (WD) vs. MBD]. The secondary endpoints were enteroendocrine hormones, hunger/satiety, and food intake. Here we show that, compared to the WD, the MBD leads to an additional 116 ± 56 kcals (P < 0.0001) lost in feces daily and thus, lower metabolizable energy for the host (89.5 ± 0.73%; range 84.2-96.1% on the MBD vs. 95.4 ± 0.21%; range 94.1-97.0% on the WD; P < 0.0001) without changes in energy expenditure, hunger/satiety or food intake (P > 0.05). Microbial 16S rRNA gene copy number (a surrogate of biomass) increases (P < 0.0001), beta-diversity changes (whole genome shotgun sequencing; P = 0.02), and fermentation products increase (P < 0.01) on an MBD as compared to a WD along with significant changes in the host enteroendocrine system (P < 0.0001). The substantial interindividual variability in metabolizable energy on the MBD is explained in part by fecal SCFAs and biomass. Our results reveal the complex host-diet-microbiome interplay that modulates energy balance.
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Affiliation(s)
- Karen D Corbin
- AdventHealth Translational Research Institute, Orlando, FL, USA
| | - Elvis A Carnero
- AdventHealth Translational Research Institute, Orlando, FL, USA
| | - Blake Dirks
- Biodesign Center for Health through Microbiomes, Arizona State University, Tempe, AZ, USA
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, USA
| | - Daria Igudesman
- AdventHealth Translational Research Institute, Orlando, FL, USA
| | - Fanchao Yi
- AdventHealth Translational Research Institute, Orlando, FL, USA
| | - Andrew Marcus
- Biodesign Center for Health through Microbiomes, Arizona State University, Tempe, AZ, USA
- Skyology Inc, San Francisco, CA, USA
| | - Taylor L Davis
- Biodesign Center for Health through Microbiomes, Arizona State University, Tempe, AZ, USA
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, USA
| | | | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, USA
- School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ, USA
| | - Rosa Krajmalnik-Brown
- Biodesign Center for Health through Microbiomes, Arizona State University, Tempe, AZ, USA.
- School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ, USA.
| | - Steven R Smith
- AdventHealth Translational Research Institute, Orlando, FL, USA.
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22
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Levi J, Guo S, Kavadiya S, Luo Y, Lee CS, Jacobs HP, Holman Z, Wong MS, Garcia-Segura S, Zhou C, Rittmann BE, Westerhoff P. Comparing methods to deposit Pd-In catalysts on hydrogen-permeable hollow-fiber membranes for nitrate reduction. Water Res 2023; 235:119877. [PMID: 36989800 DOI: 10.1016/j.watres.2023.119877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 03/04/2023] [Accepted: 03/12/2023] [Indexed: 06/19/2023]
Abstract
Catalytic hydrogenation of nitrate in water has been studied primarily using nanoparticle slurries with constant hydrogen-gas (H2) bubbling. Such slurry reactors are impractical in full-scale water treatment applications because 1) unattached catalysts are difficult to be recycled/reused and 2) gas bubbling is inefficient for delivering H2. Membrane Catalyst-film Reactors (MCfR) resolve these limitations by depositing nanocatalysts on the exterior of gas-permeable hollow-fiber membranes that deliver H2 directly to the catalyst-film. The goal of this study was to compare the technical feasibility and benefits of various methods for attaching bimetallic palladium/indium (Pd/In) nanocatalysts for nitrate reduction in water, and subsequently select the most effective method. Four Pd/In deposition methods were evaluated for effectiveness in achieving durable nanocatalyst immobilization on the membranes and repeatable nitrate-reduction activity: (1) In-Situ MCfR-H2, (2) In-Situ Flask-Synthesis, (3) Ex-Situ Aerosol Impaction-Driven Assembly, and (4) Ex-Situ Electrostatic. Although all four deposition methods achieved catalyst-films that reduced nitrate in solution (≥ 1.1 min-1gPd-1), three deposition methods resulted in significant palladium loss (>29%) and an accompanying decline in nitrate reactivity over time. In contrast, the In-Situ MCfR-H2 deposition method had negligible Pd loss and remained active for nitrate reduction over multiple operational cycles. Therefore, In-Situ MCfR-H2 emerged as the superior deposition method and can be utilized to optimize catalyst attachment, nitrate-reduction, and N2 selectivity in future studies with more complex water matrices, longer treatment cycles, and larger reactors.
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Affiliation(s)
- Juliana Levi
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment (NEWT), School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, Arizona 85287-3005, United States; Biodesign Swette Center for Environmental Biotechnology, School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, Arizona 85287-3005, United States
| | - Sujin Guo
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment (NEWT), School of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
| | - Shalinee Kavadiya
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment (NEWT), School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, Arizona 85287-3005, United States
| | - Yihao Luo
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment (NEWT), School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, Arizona 85287-3005, United States; Biodesign Swette Center for Environmental Biotechnology, School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, Arizona 85287-3005, United States
| | - Chung-Seop Lee
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment (NEWT), School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, Arizona 85287-3005, United States
| | - Hunter P Jacobs
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment (NEWT), School of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
| | - Zachary Holman
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment (NEWT), School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, Arizona 85287-3005, United States
| | - Michael S Wong
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment (NEWT), School of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
| | - Sergi Garcia-Segura
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment (NEWT), School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, Arizona 85287-3005, United States
| | - Chen Zhou
- Biodesign Swette Center for Environmental Biotechnology, School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, Arizona 85287-3005, United States
| | - Bruce E Rittmann
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment (NEWT), School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, Arizona 85287-3005, United States; Biodesign Swette Center for Environmental Biotechnology, School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, Arizona 85287-3005, United States
| | - Paul Westerhoff
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment (NEWT), School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, Arizona 85287-3005, United States.
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23
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Karadagli F, Marcus A, Rittmann BE. Microbiological hydrogen (H 2 ) thresholds in anaerobic continuous-flow systems: Effects of system characteristics. Biotechnol Bioeng 2023. [PMID: 37148477 DOI: 10.1002/bit.28415] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 03/20/2023] [Accepted: 04/24/2023] [Indexed: 05/08/2023]
Abstract
Hydrogen (H2 ) concentrations that were associated with microbiological respiratory processes (RPs) such as sulfate reduction and methanogenesis were quantified in continuous-flow systems (CFSs) (e.g., bioreactors, sediments). Gibbs free energy yield (ΔǴ ~ 0) of the relevant RP has been proposed to control the observed H2 concentrations, but most of the reported values do not align with the proposed energetic trends. Alternatively, we postulate that system characteristics of each experimental design influence all system components including H2 concentrations. To analyze this proposal, a Monod-based mathematical model was developed and used to design a gas-liquid bioreactor for hydrogenotrophic methanogenesis with Methanobacterium bryantii M.o.H. Gas-to-liquid H2 mass transfer, microbiological H2 consumption, biomass growth, methane formation, and Gibbs free energy yields were evaluated systematically. Combining model predictions and experimental results revealed that an initially large biomass concentration created transients during which biomass consumed [H2 ]L rapidly to the thermodynamic H2 -threshold (≤1 nM) that triggerred the microorganisms to stop H2 oxidation. With no H2 oxidation, continuous gas-to-liquid H2 transfer increased [H2 ]L to a level that signaled the methanogens to resume H2 oxidation. Thus, an oscillatory H2 -concentration profile developed between the thermodynamic H2 -threshold (≤1 nM) and a low [H2 ]L (~10 nM) that relied on the rate of gas-to-liquid H2 -transfer. The transient [H2 ]L values were too low to support biomass synthesis that could balance biomass losses through endogenous oxidation and advection; thus, biomass declined continuously and disappeared. A stable [H2 ]L (1807 nM) emerged as a result of abiotic H2 -balance between gas-to-liquid H2 transfer and H2 removal via advection of liquid-phase.
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Affiliation(s)
- Fatih Karadagli
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona, USA
| | - Andrew Marcus
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona, USA
- Skyology Inc., San Francisco, California, USA
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona, USA
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24
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Luo YH, Long X, Cai Y, Zheng CW, Roldan MA, Yang S, Zhou D, Zhou C, Rittmann BE. A synergistic platform enables co-oxidation of halogenated organic pollutants without input of organic primary substrate. Water Res 2023; 234:119801. [PMID: 36889084 DOI: 10.1016/j.watres.2023.119801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 02/06/2023] [Accepted: 02/23/2023] [Indexed: 06/18/2023]
Abstract
While co-oxidation is widely used to biodegrade halogenated organic pollutants (HOPs), a considerable amount of organic primary substrate is required. Adding organic primary substrates increases the operating cost and also leads to extra carbon dioxide release. In this study, we evaluated a two-stage Reduction and Oxidation Synergistic Platform (ROSP), which integrated catalytic reductive dehalogenation with biological co-oxidation for HOPs removal. The ROSP was a combination of an H2-based membrane catalytic-film reactor (H2-MCfR) and an O2-based membrane biofilm reactor (O2-MBfR). 4-chlorophenol (4-CP) was used as a model HOP to evaluate the performance of ROSP. In the MCfR stage, zero-valent palladium nanoparticles (Pd0NPs) catalyzed reductive hydrodechlorination that converted 4-CP to phenol, with a conversion yield over 92%. In the MBfR stage, the phenol was oxidized and used as a primary substrate that supported the co-oxidation of residual 4-CP. Genomic DNA sequencing revealed that phenol produced from 4-CP reduction enriched bacteria having genes for functional enzymes for phenol biodegradation in the biofilm community. In the ROSP, over 99% of 60 mg/L 4-CP was removed and mineralized during continuous operation: Effluent 4-CP and chemical oxygen demand concentrations were below 0.1 and 3 mg/L, respectively. H2 was the only added electron donor to the ROSP, which means no extra carbon dioxide was produced by primary-substrate oxidation.
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Affiliation(s)
- Yi-Hao Luo
- Engineering Research Center of Low-Carbon Treatment and Green Development of Polluted Water in Northeast China, Northeast Normal University, Changchun 130117, China; Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ 85287-5306, USA; Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ 85287-3005, USA
| | - Xiangxing Long
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ 85287-5306, USA; Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ 85287-3005, USA
| | - Yuhang Cai
- Engineering Research Center of Low-Carbon Treatment and Green Development of Polluted Water in Northeast China, Northeast Normal University, Changchun 130117, China; Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ 85287-3005, USA
| | - Chen-Wei Zheng
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ 85287-5306, USA
| | - Manuel A Roldan
- Eyring Materials Center, Arizona State University, Tempe AZ 85287-3005, USA
| | - Shize Yang
- Eyring Materials Center, Arizona State University, Tempe AZ 85287-3005, USA
| | - Dandan Zhou
- Engineering Research Center of Low-Carbon Treatment and Green Development of Polluted Water in Northeast China, Northeast Normal University, Changchun 130117, China; Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ 85287-5306, USA.
| | - Chen Zhou
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ 85287-5306, USA
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ 85287-5306, USA
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25
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Jang Y, Lee SH, Kim NK, Ahn CH, Rittmann BE, Park HD. Biofilm characteristics for providing resilient denitrification in a hydrogen-based membrane biofilm reactor. Water Res 2023; 231:119654. [PMID: 36702020 DOI: 10.1016/j.watres.2023.119654] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/19/2023] [Accepted: 01/20/2023] [Indexed: 06/18/2023]
Abstract
In a hydrogen-based membrane biofilm reactor (H2-MBfR), the biofilm thickness is considered to be one of the most important factors for denitrification. Thick biofilms in MBfRs are known for low removal fluxes owing to their resistance to substrate transport. In this study, the H2-MBfR was operated under various loading rates of oxyanions, such as NO3-N, SO4-S, and ClO4- at an H2 flux of 1.06 e- eq/m2-d. The experiment was initiated with NO3-N, SO4-S, and ClO4- loadings of 0.464, 0.026, and 0.211 e- eq/m2-d, respectively, at 20 °C. Under the most stressful conditions, the loading rates increased simultaneously to 1.911, 0.869, and 0.108 e- eq/m2-d, respectively, at 10 °C. We observed improved performance in significantly thicker biofilms (approximately 2.7 cm) compared to previous studies using a denitrifying H2-MBfR for 120 days. Shock oxyanion loadings led to a decrease in total nitrogen (TN) removal by 20 to 30%, but TN removal returned to 100% within a few days. Similarly, complete denitrification was observed, even at 10 °C. The protective function and microbial diversity of the thick biofilm may allow stable denitrification despite stress-imposing conditions. In the microbial community analysis, heterotrophs were dominant and acetogens accounted for 11% of the biofilm. Metagenomic results showed a high abundance of functional genes involved in organic carbon metabolism and homoacetogenesis. Owing to the presence of organic compounds produced by acetogens and autotrophs, heterotrophic denitrification may occur simultaneously with autotrophic denitrification. As a result, the total removal flux of oxyanions (1.84 e- eq/m2-d) far exceeded the H2 flux (1.06 e- eq/m2-d). Thus, the large accumulation of biofilms could contribute to good resilience and enhanced removal fluxes.
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Affiliation(s)
- Yongsun Jang
- Department of Civil, Environmental and Architectural Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Sang-Hoon Lee
- Department of Civil, Environmental and Architectural Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Na-Kyung Kim
- Department of Civil, Environmental and Architectural Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Chang Hoon Ahn
- The graduate school of construction engineering, Chung-ang University, Seoul, 06974, Republic of Korea
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, United States of America.
| | - Hee-Deung Park
- Department of Civil, Environmental and Architectural Engineering, Korea University, Seoul 02841, Republic of Korea; KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Republic of Korea.
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26
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Cheng J, Liu M, Su X, Rittmann BE, Lu Z, Xu J, He Y. Conductive Materials on Biocathodes Altered the Electron-Transfer Paths and Modulated γ-HCH Dechlorination and CH 4 Production in Microbial Electrochemical Systems. Environ Sci Technol 2023; 57:2739-2748. [PMID: 36724064 DOI: 10.1021/acs.est.2c06097] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Adding conductive materials to the cathode of a microbial electrochemical system (MES) can alter the route of interspecies electron transfer and the kinetics of reduction reactions. We tested reductive dechlorination of γ-hexachlorocyclohexane (γ-HCH), along with CH4 production, in MES systems whose cathodes were coated with conductive magnetite nanoparticles (NaFe), biochar (BC), magnetic biochar (FeBC), or anti-conductive silica biochar (SiBC). Coating with NaFe enriched electroactive microorganisms, boosted electro-bioreduction, and accelerated γ-HCH dechlorination and CH4 production. In contrast, BC only accelerated dechlorination, while FeBC only accelerated methanogenesis, because of their assemblies of functional taxa that selectively transferred electrons to those electron sinks. SiBC, which decreased electro-bioreduction, yielded the highest CH4 production and increased methanogens and the mcrA gene. This study provides a strategy to selectively control the distribution of electrons between reductive dechlorination and methanogenesis by adding conductive or anti-conductive materials to the MES's cathode. If the goal is to maximize dechlorination and minimize methane generation, then BC is the optimal conductive material. If the goal is to accelerate electro-bioreduction, then the best addition is NaFe. If the goal is to increase the rate of methanogenesis, adding anti-conductive SiBC is the best.
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Affiliation(s)
- Jie Cheng
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou310058, China
| | - Meng Liu
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou310058, China
| | - Xin Su
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou310058, China
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona85287-5701, United States
| | - Zhijiang Lu
- Department of Environmental Science and Geology, Wayne State University, Detroit, Michigan48201, United States
| | - Jianming Xu
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou310058, China
| | - Yan He
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou310058, China
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, Hangzhou310058, China
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27
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Zhu G, Zhang H, Yuan R, Huang M, Liu F, Li M, Zhang Y, Rittmann BE. How Comamonas testosteroni and Rhodococcus ruber enhance nitrification in the presence of quinoline. Water Res 2023; 229:119455. [PMID: 36516493 DOI: 10.1016/j.watres.2022.119455] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 11/06/2022] [Accepted: 12/02/2022] [Indexed: 06/17/2023]
Abstract
Because many wastewater-treatment plants receive effluents containing inhibitory compounds from chemical or pharmaceutical facilities, the input of these inhibitors can lead to failure of nitrification and total-N removal. Nitrification de facto is the more important process, as it is the first step of nitrogen removal and involves slow-growing autotrophic bacteria. In this work, quinoline, the target compound severely inhibited nitrification: The biomass-normalized nitrification rate decreased four-fold in the presence of quinoline. The inhibition was relieved by bioaugmenting Comamonas testosteroni or Rhodococcus ruber to the nitrifying biomass. Because the inhibition was derived from a quinoline intermediate, 2‑hydroxyl quinoline (2HQ), not quinoline itself, nitrification was accelerated only after 2HQ disappeared due to the addition of R. ruber or C. testosteroni. R. ruber was superior to C. testosteroni for 2HQ biodegradation and accelerating nitrification. Besides accelerating nitrification, adding C. testosteroni or R. ruber led to the enrichment of Nitrospira, which appeared to be carrying out commamox metabolism, since ammonium-oxidizing bacteria were not enriched.
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Affiliation(s)
- Ge Zhu
- Department of Environmental Engineering, School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai, 200234, P.R. China
| | - Haiyun Zhang
- Department of Environmental Engineering, School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai, 200234, P.R. China
| | - Ru Yuan
- Department of Environmental Engineering, School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai, 200234, P.R. China
| | - Meng Huang
- Department of Environmental Engineering, School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai, 200234, P.R. China
| | - Fei Liu
- Department of Environmental Engineering, School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai, 200234, P.R. China
| | - Mo Li
- Department of Environmental Engineering, School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai, 200234, P.R. China.
| | - Yongming Zhang
- Department of Environmental Engineering, School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai, 200234, P.R. China.
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ85287-5701, United States
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28
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Guo L, Wu Q, Lai YS, Eustance E, Rittmann BE. Revealing the role of phosphorus supply on the phosphorus distribution and lipid production in Scenedesmus obliquus UTEX 393 during nitrogen starvation. Sci Total Environ 2023; 858:159811. [PMID: 36349625 DOI: 10.1016/j.scitotenv.2022.159811] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 10/16/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
Microalgal-based processes offer promise for addressing two sustainability challenges: recovering phosphorus (P) from wastewater and producing biofuel feedstock. This study investigated the role of phosphorus supply on microalgal growth, lipid yield, and P distribution for Scenedesmus during nitrogen starvation. Extracellular polymeric substances and intracellular polymeric substances were the most important pools for inorganic phosphorus (IP) and organic phosphorus (OP), respectively. The main P pool for microalgae with low phosphorus supply was EPS, which accounted for 57 % of the total biomass phosphorus; while under high P concentrations, 79 % of the phosphorus was stored in IPS. A high concentration of orthophosphate stimulated rapid P uptake as IP and promoted the transformation of IP to OP associating with biomass synthesis. The highest P content of microalgal biomass was 6.5 % of dry weight when the phosphorus concentration in medium was 113 mg/L, and the OP content was 4.9 % of dry weight. High phosphate-P enhanced the biomass's lipid content by 60 %, and the distribution of fatty acid methyl esters was not altered by P concentrations. Collectively, high phosphate-P availability could promote microalgal biomass synthesis, lipid production and P accumulation.
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Affiliation(s)
- Liang Guo
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China; Key Laboratory of Marine Environmental and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China.
| | - Qirui Wu
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - YenJung Sean Lai
- Swette Center for Environmental Biotechnology, Biodesign Institute at Arizona State University, USA
| | - Everett Eustance
- Swette Center for Environmental Biotechnology, Biodesign Institute at Arizona State University, USA
| | - Bruce E Rittmann
- Swette Center for Environmental Biotechnology, Biodesign Institute at Arizona State University, USA
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29
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Corbin KD, Carnero EA, Dirks B, Igudesman D, Yi F, Marcus A, Davis TL, Pratley RE, Rittmann BE, Krajmalnik-Brown R, Smith SR. Reprogramming the Human Gut Microbiome Reduces Dietary Energy Harvest. Res Sq 2023:rs.3.rs-2382790. [PMID: 36747835 PMCID: PMC9901041 DOI: 10.21203/rs.3.rs-2382790/v1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The gut microbiome is emerging as a key modulator of host energy balance1. We conducted a quantitative bioenergetics study aimed at understanding microbial and host factors contributing to energy balance. We used a Microbiome Enhancer Diet (MBD) to reprogram the gut microbiome by delivering more dietary substrates to the colon and randomized healthy participants into a within-subject crossover study with a Western Diet (WD) as a comparator. In a metabolic ward where the environment was strictly controlled, we measured energy intake, energy expenditure, and energy output (fecal, urinary, and methane)2. The primary endpoint was the within-participant difference in host metabolizable energy between experimental conditions. The MBD led to an additional 116 ± 56 kcals lost in feces daily and thus, lower metabolizable energy for the host by channeling more energy to the colon and microbes. The MBD drove significant shifts in microbial biomass, community structure, and fermentation, with parallel alterations to the host enteroendocrine system and without altering appetite or energy expenditure. Host metabolizable energy on the MBD had quantitatively significant interindividual variability, which was associated with differences in the composition of the gut microbiota experimentally and colonic transit time and short-chain fatty acid absorption in silico. Our results provide key insights into how a diet designed to optimize the gut microbiome lowers host metabolizable energy in healthy humans.
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Affiliation(s)
- Karen D. Corbin
- AdventHealth Translational Research Institute, Orlando, Florida
| | | | - Blake Dirks
- Biodesign Center for Health through Microbiomes, Tempe, AZ,Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ
| | - Daria Igudesman
- AdventHealth Translational Research Institute, Orlando, Florida
| | - Fanchao Yi
- AdventHealth Translational Research Institute, Orlando, Florida
| | - Andrew Marcus
- Biodesign Center for Health through Microbiomes, Tempe, AZ,Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ
| | - Taylor L. Davis
- Biodesign Center for Health through Microbiomes, Tempe, AZ,Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ
| | | | - Bruce E. Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ,School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ
| | - Rosa Krajmalnik-Brown
- Biodesign Center for Health through Microbiomes, Tempe, AZ,School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ
| | - Steven R. Smith
- AdventHealth Translational Research Institute, Orlando, Florida
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30
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Zheng CW, Zhou C, Luo YH, Long M, Long X, Zhou D, Bi Y, Yang S, Rittmann BE. Coremoval of Energetics and Oxyanions via the In Situ Coupling of Catalytic and Enzymatic Destructions: A Solution to Ammunition Wastewater Treatment. Environ Sci Technol 2023; 57:666-673. [PMID: 36445010 DOI: 10.1021/acs.est.2c05675] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Ammunition wastewater contains toxic nitrated explosives like RDX and oxyanions like nitrate and perchlorate. Its treatment is challenged by low efficiency due to contaminant recalcitrance and high cost due to multiple processes needed for separately removing different contaminant types. This paper reports a H2-based low-energy strategy featuring the treatment of explosives via catalytic denitration followed by microbial mineralization coupled with oxyanion reduction. After a nitrate- and perchlorate-reducing biofilm incapable of RDX biodegradation was coated with palladium nanoparticles (Pd0NPs), RDX was rapidly denitrated with a specific catalytic activity of 8.7 gcat-1 min-1, while biological reductions of nitrate and perchlorate remained efficient. In the subsequent 30-day continuous test, >99% of RDX, nitrate, and perchlorate were coremoved, and their effluent concentrations were below their respective regulation levels. Detected intermediates and shallow metagenome analysis suggest that the intermediates after Pd-catalytic denitration of RDX ultimately were enzymatically utilized by the nitrate- and perchlorate-reducing bacteria as additional electron donor sources.
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Affiliation(s)
- Chen-Wei Zheng
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona85281, United States
| | - Chen Zhou
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona85281, United States
| | - Yi-Hao Luo
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona85281, United States
| | - Min Long
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona85281, United States
| | - Xiangxing Long
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona85281, United States
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Arizona State University, Tempe, Arizona85281, United States
| | - Dandan Zhou
- Engineering Lab for Water Pollution Control and Resources Recovery of Jilin Province, School of Environment, Northeast Normal University, Changchun130024, China
| | - Yuqiang Bi
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Arizona State University, Tempe, Arizona85281, United States
| | - Shize Yang
- Eyring Materials Center, Arizona State University, Tempe, Arizona85281, United States
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona85281, United States
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31
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Cai Y, Luo YH, Long X, Roldan MA, Yang S, Zhou C, Zhou D, Rittmann BE. Reductive Dehalogenation of Herbicides Catalyzed by Pd 0NPs in a H 2-Based Membrane Catalyst-Film Reactor. Environ Sci Technol 2022; 56:18030-18040. [PMID: 36383359 DOI: 10.1021/acs.est.2c07317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
More food production required to feed humans will require intensive use of herbicides to protect against weeds. The widespread application and persistence of herbicides pose environmental risks for nontarget species. Elemental-palladium nanoparticles (Pd0NPs) are known to catalyze reductive dehalogenation of halogenated organic pollutants. In this study, the reductive conversion of 2,4-dichlorophenoxyacetic acid (2,4-D) was evaluated in a H2-based membrane catalyst-film reactor (H2-MCfR), in which Pd0NPs were in situ-synthesized as the catalyst film and used to activate H2 on the surface of H2-delivery membranes. Batch kinetic experiments showed that 99% of 2,4-D was removed and converted to phenoxyacetic acid (POA) within 90 min with a Pd0 surface loading of 20 mg Pd/m2, achieving a catalyst specific activity of 6.6 ± 0.5 L/g-Pd-min. Continuous operation of the H2-MCfR loaded with 20 mg Pd/m2 sustained >99% removal of 50 μM 2,4-D for 20 days. A higher Pd0 surface loading, 1030 mg Pd/m2, also enabled hydrosaturation and hydrolysis of POA to cyclohexanone and glycolic acid. Density functional theory identified the reaction mechanisms and pathways, which involved reductive hydrodechlorination, hydrosaturation, and hydrolysis. Molecular electrostatic potential calculations and Fukui indices suggested that reductive dehalogenation could increase the bioavailability of herbicides. Furthermore, three other halogenated herbicides─atrazine, dicamba, and bromoxynil─were reductively dehalogenated in the H2-MCfR. This study documents a promising method for the removal and detoxification of halogenated herbicides in aqueous environments.
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Affiliation(s)
- Yuhang Cai
- Engineering Lab for Water Pollution Control and Resources Recovery of Jilin Province, School of Environment, Northeast Normal University, Changchun130117, China
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona85287-5701, United States
| | - Yi-Hao Luo
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona85287-5701, United States
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, Arizona85287-3005, United States
| | - Xiangxing Long
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona85287-5701, United States
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, Arizona85287-3005, United States
| | - Manuel A Roldan
- Eyring Materials Center, Arizona State University, Tempe,Arizona85287-3005, United States
| | - Shize Yang
- Eyring Materials Center, Arizona State University, Tempe,Arizona85287-3005, United States
| | - Chen Zhou
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona85287-5701, United States
| | - Dandan Zhou
- Engineering Lab for Water Pollution Control and Resources Recovery of Jilin Province, School of Environment, Northeast Normal University, Changchun130117, China
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona85287-5701, United States
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona85287-5701, United States
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Cai Y, Luo YH, Long X, Zaidi AA, Shi Y, Zhou D, Rittmann BE. Wastewater treatment for ships experiencing large temperature changes: the activated sludge/membrane-biofilm reactor. Chemosphere 2022; 307:135852. [PMID: 35963382 DOI: 10.1016/j.chemosphere.2022.135852] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/22/2022] [Accepted: 07/23/2022] [Indexed: 06/15/2023]
Abstract
A particular challenge to treatment systems for ship wastewater comes from low and variable temperatures. We evaluated the temperature response (35-15 °C) of a novel biological treatment system involving activated sludge followed by a membrane-biofilm reactor: the activated sludge/membrane-biofilm reactor (AS-ABfMemR). In this study, a pilot-scale AS-ABfMemR achieved over 96% chemical oxygen demand (COD) and 94% total nitrogen (TN) removal from a ship wastewater (550-960 mgCOD·L-1 and 52-77 mgTN·L-1) with a continuous operation with a hydraulic retention time of 12 h at 25 °C. The effluent COD and TN concentrations met IMO discharge standards at temperatures as low as 17 °C, which reduced the energy consumption for wastewater heating. The COD and TN removals of the biofilm stage became important (up to 34% and 35%, respectively) at low temperatures, and this compensated for the deterioration in performance of the aerobic sludge. The genus Azospira dominated in the biofilm's denitrification removal for TN at low temperature. In addition, the buildup of trans-membrane pressure was so slow that backwashing was not needed over the 90 days of continuous operation. These conclusions indicate that the pilot-scale AS-ABfMemR technology is an effective way for real ship sewage treatment under temperature variations.
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Affiliation(s)
- Yuhang Cai
- Engineering Lab for Water Pollution Control and Resources Recovery of Jilin Province, School of Environment, Northeast Normal University, Changchun, 130117, China; Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, 85271-5701, USA; College of Power and Energy Engineering, Harbin Engineering University, Harbin, 150001, PR China
| | - Yi-Hao Luo
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, 85271-5701, USA
| | - Xiangxing Long
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ 85287-3005, United States
| | - Asad A Zaidi
- Department of Mechanical Engineering, Faculty of Engineering Sciences and Technology, Hamdard University, Karachi, 74600, Pakistan
| | - Yue Shi
- College of Power and Energy Engineering, Harbin Engineering University, Harbin, 150001, PR China.
| | - Dandan Zhou
- Engineering Lab for Water Pollution Control and Resources Recovery of Jilin Province, School of Environment, Northeast Normal University, Changchun, 130117, China
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, 85271-5701, USA
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33
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Zhou J, Wu C, Pang S, Yang L, Yao M, Li X, Xia S, Rittmann BE. Dissimilatory and Cytoplasmic Antimonate Reductions in a Hydrogen-Based Membrane Biofilm Reactor. Environ Sci Technol 2022; 56:14808-14816. [PMID: 36201672 DOI: 10.1021/acs.est.2c04939] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
A hydrogen-based membrane biofilm reactor (H2-MBfR) was operated to investigate the bioreduction of antimonate [Sb(V)] in terms of Sb(V) removal, the fate of Sb, and the pathways of reduction metabolism. The MBfR achieved up to 80% Sb(V) removal and an Sb(V) removal flux of 0.55 g/m2·day. Sb(V) was reduced to Sb(III), which mainly formed Sb2O3 precipitates in the biofilm matrix, although some Sb(III) was retained intracellularly. High Sb(V) loading caused stress that deteriorated performance that was not recovered when the high Sb(V) loading was removed. The biofilm community consisted of DSbRB (dissimilatory Sb-reduction bacteria), SbRB (Sb-resistant bacteria), and DIRB (dissimilatory iron-reducing bacteria). Dissimilatory antimonate reduction, mediated by the respiratory arsenate reductase ArrAB, was the main reduction route, but respiratory reduction coexisted with cytoplasmic Sb(V)-reduction mediated by arsenate reductase ArsC. Increasing Sb(V) loading caused stress that led to increases in the expression of arsC gene and intracellular accumulation of Sb(III). By illuminating the roles of the dissimilatory and cytoplasmic Sb(V) reduction mechanism in the biofilms of the H2-MBfR, this study reveals that the Sb(V) loading should be controlled to avoid stress that deteriorates Sb(V) reduction.
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Affiliation(s)
- Jingzhou Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai200092, China
| | - Chengyang Wu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai200092, China
| | - Si Pang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai200092, China
| | - Lin Yang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai200092, China
| | - Mengying Yao
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai200092, China
| | - Xiaodi Li
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai200092, China
| | - Siqing Xia
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai200092, China
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona85287-5701, United States
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34
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Luo YH, Long M, Zhou Y, Zhou C, Zheng X, Rittmann BE. Hydrodehalogenation of Trichlorofluoromethane over Biogenic Palladium Nanoparticles in Ambient Conditions. Environ Sci Technol 2022; 56:13357-13367. [PMID: 36070436 DOI: 10.1021/acs.est.2c03532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Among a number of persistent chlorofluorocarbons (CFCs, or freons), the emissions of trichlorofluoromethane (CFCl3, CFC-11) have been increasing since 2002. Zero-valent-Pd (Pd0) catalysts are known to hydrodehalogenate CFCs; however, most studies rely on cost-inefficient and eco-unfriendly chemical synthesis of Pd0NPs and harsh reaction conditions. In this study, we synthesized Pd0 nanoparticles (Pd0NPs) using D. vulgaris biomass as the support and evaluated hydrodehalogenation of CFC-11 catalyzed by the biogenic Pd0NPs. The presence of D. vulgaris biomass stabilized and dispersed 3-6 nm Pd0NPs that were highly active. We documented, for the first time, Pd0-catalyzed simultaneous hydrodechlorination and hydrodefluorination of CFC-11 at ambient conditions (room temperature and 1 atm). More than 70% CFC-11 removal was achieved within 15 h with a catalytic activity of 1.5 L/g-Pd/h, dechlorination was 50%, defluorination was 41%, and selectivity to fully dehalogenated methane was >30%. The reaction pathway had a mixture of parallel and sequential hydrodehalogenation. In particular, hydrodefluorination was favored by higher H2 availability and Pd0:CFC-11 ratio. This study offers a promising strategy for efficient and sustainable treatment of freon-contaminated water.
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Affiliation(s)
- Yi-Hao Luo
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, 1001 S McAllister Ave, Tempe, Arizona 85287-5701, United States
| | - Min Long
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, 1001 S McAllister Ave, Tempe, Arizona 85287-5701, United States
| | - Yun Zhou
- College of Resources and Environment, Huazhong Agricultural University,No.1, Shizishan Street, Hongshan District, Wuhan Hubei Province 430070, P.R.China
| | - Chen Zhou
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, 1001 S McAllister Ave, Tempe, Arizona 85287-5701, United States
| | - Xiong Zheng
- State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, 1239 Siping Road, Shanghai 200092, P.R.China
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, 1001 S McAllister Ave, Tempe, Arizona 85287-5701, United States
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35
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Young MN, Boltz J, Rittmann BE, Al-Omari A, Jimenez JA, Takacs I, Marcus AK. Thermodynamic Analysis of Intermediary Metabolic Steps and Nitrous Oxide Production by Ammonium-Oxidizing Bacteria. Environ Sci Technol 2022; 56:12532-12541. [PMID: 35993695 DOI: 10.1021/acs.est.1c08498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Nitrous oxide (N2O) is a greenhouse gas emitted from wastewater treatment, soils, and agriculture largely by ammonium-oxidizing bacteria (AOB). While AOB are characterized by being aerobes that oxidize ammonium (NH4+) to nitrite (NO2-), fundamental studies in microbiology are revealing the importance of metabolic intermediates and reactions that can lead to the production of N2O. These findings about the metabolic pathways for AOB were integrated with thermodynamic electron-equivalents modeling (TEEM) to estimate kinetic and stoichiometric parameters for each of the AOB's nitrogen (N)-oxidation and -reduction reactions. The TEEM analysis shows that hydroxylamine (NH2OH) oxidation to nitroxyl (HNO) is the most energetically efficient means for the AOB to provide electrons for ammonium monooxygenation, while oxidations of HNO to nitric oxide (NO) and NO to NO2- are energetically favorable for respiration and biomass synthesis. The respiratory electron acceptor can be O2 or NO, and both have similar energetics. The TEEM-predicted value for biomass yield, maximum-specific rate of NH4+ utilization, and maximum specific growth rate are consistent with empirical observations. NO reduction to N2O is thermodynamically favorable for respiration and biomass synthesis, but the need for O2 as a reactant in ammonium monooxygenation likely precludes NO reduction to N2O from becoming the major pathway for respiration.
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Affiliation(s)
- Michelle N Young
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, 1001 South McAllister Avenue, Tempe, Arizona 85287-5701, United States
| | - Joshua Boltz
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, 1001 South McAllister Avenue, Tempe, Arizona 85287-5701, United States
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, 1001 South McAllister Avenue, Tempe, Arizona 85287-5701, United States
| | - Ahmed Al-Omari
- Brown and Caldwell, 1725 Duke Street Suite 250, Alexandria, Virginia 22314, United States
| | - Jose A Jimenez
- Brown and Caldwell, 351 Lucien Way, Suite 250, Maitland, Florida 32751, United States
| | - Imre Takacs
- Dynamita, 2015 route d'Aiglun, 06910 Sigale, France
| | - Andrew K Marcus
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, 1001 South McAllister Avenue, Tempe, Arizona 85287-5701, United States
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36
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Lu Q, Zhou J, Zhu G, Tan C, Chen S, Zhu X, Yan N, Zhang Y, Xu Q, Pan B, Rittmann BE. Anoxic/oxic treatment without biomass recycle. Sci Total Environ 2022; 834:155166. [PMID: 35413348 DOI: 10.1016/j.scitotenv.2022.155166] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 04/06/2022] [Accepted: 04/06/2022] [Indexed: 06/14/2023]
Abstract
The Anoxic/Oxic (A/O) process involves recirculating mixed liquor between its A and O tanks so that nitrate produced in the O tank can be used to for denitrification with influent COD in the A tank. Because biomass is recirculated along with nitrate, A/O operation leads to similar microbial communities in the A and O tanks, which may decrease the rates of denitrification and nitrification in each tank. Here, bench-scale experiments simulated this aspect of the A/O process by exchanging biomass between an anoxic flask and an oxic cylinder at exchange ratios of 0%, 20%, 30%, and 50%. Nitrification and denitrification rates were only 40% and 19% for 50% biomass exchange of that for no biomass exchange. Phylogenetic analysis documented that the microbial communities became much more similar with biomass exchange, and the finding was consistent with community composition in a full-scale A/O process in a municipal wastewater treatment plant. A two-stage vertical baffled bioreactor (VBBR) realized efficient total‑nitrogen removal in recirculation without biomass exchange. Average removals of COD and TN were respectively 6% and 22% higher for the two-stage VBBR than the conventional A/O process, but its hydraulic retention time (HRT) was 55% to 70% of the volume of a conventional A/O process treating the same influent wastewater. The VBBR was more efficient because its anoxic biofilm was enriched in denitrifying bacteria, while its oxic biofilm was enriched in nitrifying bacteria. For example, the phylum Chloroflexi was greater in the An-VBBR, while the phylum Proteobacteria was greater in the Ox-VBBR.
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Affiliation(s)
- Qinyuan Lu
- Department of Environmental Engineering, School of Environmental and Geographical Science, Shanghai Normal University, Shanghai 200234, PR China; State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China
| | - Junqing Zhou
- Department of Environmental Engineering, School of Environmental and Geographical Science, Shanghai Normal University, Shanghai 200234, PR China
| | - Ge Zhu
- Department of Environmental Engineering, School of Environmental and Geographical Science, Shanghai Normal University, Shanghai 200234, PR China
| | - Chong Tan
- Department of Environmental Engineering, School of Environmental and Geographical Science, Shanghai Normal University, Shanghai 200234, PR China
| | - Songyun Chen
- Department of Environmental Engineering, School of Environmental and Geographical Science, Shanghai Normal University, Shanghai 200234, PR China
| | - Xiaohui Zhu
- Department of Environmental Engineering, School of Environmental and Geographical Science, Shanghai Normal University, Shanghai 200234, PR China
| | - Ning Yan
- Department of Environmental Engineering, School of Environmental and Geographical Science, Shanghai Normal University, Shanghai 200234, PR China
| | - Yongming Zhang
- Department of Environmental Engineering, School of Environmental and Geographical Science, Shanghai Normal University, Shanghai 200234, PR China.
| | - Qiuen Xu
- Zhongke Sanjing Environmental Protection Co., Ltd, Anxi, Fujian 362400, PR China
| | - Bifeng Pan
- Zhongke Sanjing Environmental Protection Co., Ltd, Anxi, Fujian 362400, PR China
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ 85287-5701, USA
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Lai YS, Eustance E, Shesh T, Frias Z, Rittmann BE. Achieving superior carbon transfer efficiency and pH control using membrane carbonation with a wide range of CO 2 contents for the coccolithophore Emiliania huxleyi. Sci Total Environ 2022; 822:153592. [PMID: 35122858 DOI: 10.1016/j.scitotenv.2022.153592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 01/18/2022] [Accepted: 01/28/2022] [Indexed: 06/14/2023]
Abstract
The economic viability of microalgal-derived products relies on rapid CO2 transfer in a cost-effective manner. Many industrial gas streams contain concentrated CO2 that, if converted to useful products, would lower greenhouse gas emissions and valorize the wasted CO2. Membrane carbonation (MC) uses non-porous hollow-fiber gas-transfer membranes to deliver CO2 without bubble formation, which makes it possible to achieve a high carbon-transfer efficiency (CTE). However, inert gasses in the industrial streams (e.g., N2, O2, and H2O) can significantly lower the CO2-delivery rate. The means to overcome the buildup of inert gases in the membrane lumen is to manage the distal end of the membranes to sweep out inert gases while not wasting significant CO2. A MC-venting strategy was evaluated for CO2 inputs from 5% to 100%. Abiotic tests using a restricted exit flow could achieve >95% CTEabiotic for industrial CO2 streams. When integrated with semi-continuous cultivation of a marine coccolithophore, Emiliania huxleyi, CO2 delivery and venting were on-demand based on a pH set points and pH-actuated feed and venting valves. MC using the venting strategy achieved 100% CTEbiotic when delivering 100% and 50% CO2, which was better than 50% CTEbiotic obtained from pH-controlled sparging of 100% CO2-sparging. E. huxleyi consistently fixed ~80% of the delivered CO2 into biomass, and the remaining ~20% to calcite coccoliths. The compact size of MC modules, stable pH control, and no shear forces from bubble agitation during the CO2 delivery made MC an ideal match for cultivation of coccolithophores, which are sensitive to shear forces and pH fluctuations.
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Affiliation(s)
- YenJung Sean Lai
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ 85287-5701, USA.
| | - Everett Eustance
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ 85287-5701, USA
| | - Tarun Shesh
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ 85287-5701, USA
| | - Zoe Frias
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ 85287-5701, USA
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ 85287-5701, USA
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Wu C, Zhou L, Zhou C, Zhou Y, Zhou J, Xia S, Rittmann BE. A kinetic model for 2,4-dichlorophenol adsorption and hydrodechlorination over a palladized biofilm. Water Res 2022; 214:118201. [PMID: 35196619 DOI: 10.1016/j.watres.2022.118201] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 02/09/2022] [Accepted: 02/14/2022] [Indexed: 06/14/2023]
Abstract
Adsorption and catalytic hydrodechlorination (HDC) of aqueous 2,4-DCP by palladium nanoparticles (Pd0NPs) associated with a biofilm (i.e., a Pd0-biofilm) was investigated in terms of the removal efficiency of 2,4-DCP, dechlorinated product selectivity, and reduction kinetics. Experiments were executed with Pd0-biofilm and with abiotic Pd0NPs-film alone. The 2,4-DCP-adsorption capacity of Pd0-biofilm was 2- to 5-fold greater than that of abiotic Pd0NPs-film, and the adsorption accelerated dechlorination by Pd0-biofilm, including selectivity to phenol instead of mono-chlorophenols. A mechanistic kinetic model was developed to represent the sequential adsorption and reduction processes. Modeling results represented well the removal of 2,4-DCP and quantified that Pd0-biofilm had a strong affinity for adsorbing 2,4-DCP. The strong adsorption increased the volume-averaged concentration of 2,4-DCP concentration inside the Pd0-biofilm, compared to the concentration in the bulk liquid. This increase in the local concentration of 2,4-DCP led to a 2- to 4-fold increase in the reduction rate of 2,4-DCP in Pd0-biofilm, compared to abiotic Pd0NPs-film. Thus, coupling Pd0NPs with the biofilm promoted 2,4-DCP removal and full dechlorination despite its low concentration in bulk water.
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Affiliation(s)
- Chengyang Wu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China
| | - Luman Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China
| | - Chen Zhou
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, United States
| | - Yun Zhou
- College of Resources and Environment, Huazhong Agricultural University, Wuhan, China
| | - Jingzhou Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China
| | - Siqing Xia
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China.
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, United States
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Luo YH, Cai Y, Long X, Zhou D, Zhou C, Rittmann BE. Palladium (Pd 0) Loading-Controlled Catalytic Activity and Selectivity for Chlorophenol Hydrodechlorination and Hydrosaturation. Environ Sci Technol 2022; 56:4447-4456. [PMID: 35230835 DOI: 10.1021/acs.est.1c08347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Reductive catalysis by zero-valent palladium nanoparticles (Pd0NPs) has emerged as an efficient strategy for promoting the detoxification of chlorophenols (CPs) via hydrogenation. Most studies achieved hydrodechlorination of CP to phenol for detoxification, but it requires considerably high energy input and harsh conditions to further hydrosaturate phenol to cyclohexanone (CHN) as the most desired product for resource recovery. This study documented 4-CP hydrodechlorination and hydrosaturation catalyzed by Pd0NPs deposited on H2-transfer membranes in the H2-based membrane catalyst-film reactor, which yielded up to 99% CHN selectivity under ambient conditions. It was further discovered that the Pd0 morphology and size, both determined by Pd0 loading, were the key factors controlling the catalytic activity and selectivity: while sub-nano Pd particles catalyzed only 4-CP hydrodechlorination, Pd0NPs were able to catalyze the subsequent hydrosaturation that requires more Pd0 reactive sites than hydrodechlorination. In addition, better dispersion of Pd0, caused by lower Pd0 loading, yielded higher activity for hydrodechlorination but lower activity for hydrosaturation. During the 15 day continuous tests, the substantial product from 4-CP hydrogenation was constantly phenol (>98%) for 0.2 g-Pd/m2 and CHN (>92%) for 1.0 g-Pd/m2. This study opens the door for selectively manipulating desired products from Pd0-catalyzed CP hydrogenation under ambient conditions.
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Affiliation(s)
- Yi-Hao Luo
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287-5306, USA
| | - Yuhang Cai
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287-5306, USA
- Engineering Lab for Water Pollution Control and Resources Recovery of Jilin Province, School of Environment, Northeast Normal University, Changchun 130117, China
| | - Xiangxing Long
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287-5306, USA
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, Arizona 85287-3005, USA
| | - Dandan Zhou
- Engineering Lab for Water Pollution Control and Resources Recovery of Jilin Province, School of Environment, Northeast Normal University, Changchun 130117, China
| | - Chen Zhou
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287-5306, USA
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287-5306, USA
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Calvo DC, Luna HJ, Arango JA, Torres CI, Rittmann BE. Determining global trends in syngas fermentation research through a bibliometric analysis. J Environ Manage 2022; 307:114522. [PMID: 35066199 DOI: 10.1016/j.jenvman.2022.114522] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 01/10/2022] [Accepted: 01/13/2022] [Indexed: 06/14/2023]
Abstract
Syngas fermentation, in which microorganisms convert H2, CO, and CO2 to acids and alcohols, is a promising alternative for carbon cycling and valorization. The intellectual landscape of the topic was characterized through a bibliometric analysis using a search query (SQ) that included all relevant documents on syngas fermentation available through the Web of Science database up to December 31st, 2021. The SQ was validated with a preliminary analysis in bibliometrix and a review of titles and abstracts of all sources. Although syngas fermentation began in the early 1980s, it grew rapidly beginning in 2008, with 92.5% of total publications and 87.3% of total citations from 2008 to 2021. The field has been steadily moving from fundamentals towards applications, suggesting that the field is maturing scientifically. The greatest number of publications and citations are from the USA, and researchers in China, Germany, and Spain also are highly active. Although collaborations have increased in the past few years, author-cluster analysis shows specialized research domains with little collaboration between groups. Based on topic trends, the main challenges to be address are related to mass-transfer limitations, and researchers are starting to explore mixed cultures, genetic engineering, microbial chain elongation, and biorefineries.
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Affiliation(s)
- Diana C Calvo
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, PO Box 85287-3005, USA; Biodesign Center for Health Through Microbiomes, Arizona State University, Tempe, AZ, PO Box 85287-3005, USA.
| | - Hector J Luna
- Grupo GRESIA, Department of Environmental Engineering, Universidad Antonio Nariño, Bogotá, 110231, Colombia; Environmental and Chemical Technology Group, Department of Chemistry, Federal University of Ouro Preto, Campus University, Campus Universitario, Brazil
| | - Jineth A Arango
- Pontificia Universidad Católica de Valparaíso, Valparaíso, 2362803, Chile.
| | - Cesar I Torres
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, PO Box 85287-3005, USA.
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, PO Box 85287-3005, USA.
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Xu Y, Kerr PG, Dolfing J, Rittmann BE, Wu Y. A novel biotechnology based on periphytic biofilms with N-acyl-homoserine-lactones stimulation and lanthanum loading for phosphorus recovery. Bioresour Technol 2022; 347:126421. [PMID: 34838961 DOI: 10.1016/j.biortech.2021.126421] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 11/19/2021] [Accepted: 11/21/2021] [Indexed: 06/13/2023]
Abstract
This study presents an approach for developing periphytic biofilm with N-acyl-homoserine-lactones (AHLs) stimulation and lanthanum (La, a rare earth element) loading, to achieve highly efficient and stable phosphorus (P) recovery from wastewater. AHLs stimulated biofilm growth and formation, also improved stable P entrapment by enhancing extracellular polymeric substance (EPS) production and optimizing P-entrapment bacterial communities. Periphytic biofilms loading La is based on ligand exchanges, and La loading achieved initial rapid P entrapment by surface adsorption. The combination of AHLs stimulation and La loading achieved 99.0% P entrapment. Interestingly, the enhanced EPS production stimulated by AHLs protected biofilms against La. Moreover, a method for P and La separately recovery from biofilms was developed, achieving 89-96% of P and 88-93% of La recovery. This study offers a promising biotechnology to reuse La from La-rich wastewater and recover P by biofilm doped with La, which results in a win-win situation for resource sustainability.
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Affiliation(s)
- Ying Xu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, 71 East Beijing Road, Nanjing 210008, China; Zigui Three Gorges Reservoir Ecosystem, Observation and Research Station of Ministry of Water Resources of the People's Republic of China, Shuitianba Zigui, Yichang 443605, China; College of Resource and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Philip G Kerr
- School of Biomedical Sciences, Charles Sturt University, Boorooma St, Wagga Wagga, NSW 2678, Australia
| | - Jan Dolfing
- Faculty of Energy and Environment, Northumbria University, Newcastle Upon Tyne NE1 8QH, UK
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, P. O. Box 875701, Tempe, AZ 85287-5701, USA
| | - Yonghong Wu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, 71 East Beijing Road, Nanjing 210008, China; Zigui Three Gorges Reservoir Ecosystem, Observation and Research Station of Ministry of Water Resources of the People's Republic of China, Shuitianba Zigui, Yichang 443605, China; College of Hydraulic & Environmental Engineering, China Three Gorges University, Hubei Yichang 443002, China.
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Lewis CM, Flory JD, Moore TA, Moore AL, Rittmann BE, Vermaas WFJ, Torres CI, Fromme P. Electrochemically Driven Photosynthetic Electron Transport in Cyanobacteria Lacking Photosystem II. J Am Chem Soc 2022; 144:2933-2942. [PMID: 35157427 DOI: 10.1021/jacs.1c09291] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Light-activated photosystem II (PSII) carries out the critical step of splitting water in photosynthesis. However, PSII is susceptible to light-induced damage. Here, results are presented from a novel microbial electro-photosynthetic system (MEPS) that uses redox mediators in conjunction with an electrode to drive electron transport in live Synechocystis (ΔpsbB) cells lacking PSII. MEPS-generated, light-dependent current increased with light intensity up to 2050 μmol photons m-2 s-1, which yielded a delivery rate of 113 μmol electrons h-1 mg-chl-1 and an average current density of 150 A m-2 s-1 mg-chl-1. P700+ re-reduction kinetics demonstrated that initial rates exceeded wildtype PSII-driven electron delivery. The electron delivery occurs ahead of the cytochrome b6f complex to enable both NADPH and ATP production. This work demonstrates an electrochemical system that can drive photosynthetic electron transport, provides a platform for photosynthetic foundational studies, and has the potential for improving photosynthetic performance at high light intensities.
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Affiliation(s)
- Christine M Lewis
- School of Molecular Sciences, Arizona State University, Tempe, Arizona 85287, United States.,Biodesign Institute Center for Applied Structural Discovery, Arizona State University, Tempe, Arizona 85287, United States.,Biodesign Institute Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287, United States
| | - Justin D Flory
- Biodesign Institute Center for Applied Structural Discovery, Arizona State University, Tempe, Arizona 85287, United States.,Engineering Center for Negative Carbon Emmisions, at Arizona State University, Tempe, Arizona 85281, United States
| | - Thomas A Moore
- School of Molecular Sciences, Arizona State University, Tempe, Arizona 85287, United States.,Julie Ann Wrigley Global Institute of Sustainability and Innovation, Arizona State University, Tempe Arizona 85287, United States
| | - Ana L Moore
- School of Molecular Sciences, Arizona State University, Tempe, Arizona 85287, United States.,Julie Ann Wrigley Global Institute of Sustainability and Innovation, Arizona State University, Tempe Arizona 85287, United States
| | - Bruce E Rittmann
- School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, Arizona 85287, United States.,Biodesign Institute Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287, United States
| | - Wim F J Vermaas
- School of Life Sciences, Arizona State University, Tempe, Arizona 85287, United States
| | - César I Torres
- Biodesign Institute Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287, United States.,School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, Arizona 85287, United States
| | - Petra Fromme
- School of Molecular Sciences, Arizona State University, Tempe, Arizona 85287, United States.,Biodesign Institute Center for Applied Structural Discovery, Arizona State University, Tempe, Arizona 85287, United States
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Zheng CW, Long M, Luo YH, Long X, Bi Y, Zhou D, Zhou C, Rittmann BE. Reductive destruction of multiple nitrated energetics over palladium nanoparticles in the H 2-based membrane catalyst-film reactor (MCfR). J Hazard Mater 2022; 423:127055. [PMID: 34523494 DOI: 10.1016/j.jhazmat.2021.127055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 07/31/2021] [Accepted: 08/04/2021] [Indexed: 06/13/2023]
Abstract
Nitrated energetics are widespread contaminants due to their improper disposal from ammunition facilities. Different classes of nitrated energetics commonly co-exist in ammunition wastewater, but co-removal of the classes has hardly been documented. In this study, we evaluated the catalytic destruction of three types of energetics using palladium (Pd0) nano-catalysts deposited on H2-transfer membranes in membrane catalyst-film reactors (MCfRs). This work documented nitro-reduction of 2,4,6-trinitrotoluene (TNT), as well as, for the first time, denitration of hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) and pentaerythritol tetranitrate (PETN) over Pd0 at ambient temperature. The catalyst-specific activity was 20- to 90-fold higher than reported for other catalyst systems. Nitrite (NO2-) released from RDX and PETN also was catalytically reduced to dinitrogen gas (N2). Continuous treatment of a synthetic wastewater containing TNT, RDX, and PETN (5 mg/L each) for more than 20 hydraulic retention times yielded removals higher than 96% for all three energetics. Furthermore, the concentrations of NO2- and NH4+ were below the detection limit due to subsequent NO2- reduction with > 99% selectivity to N2. Thus, the MCfR provides a promising strategy for sustainable catalytic removal of co-existing energetics in ammunition wastewater.
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Affiliation(s)
- Chen-Wei Zheng
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, USA
| | - Min Long
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, USA
| | - Yi-Hao Luo
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, USA
| | - Xiangxing Long
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, USA; Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Arizona State University, Tempe, AZ, USA
| | - Yuqiang Bi
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, USA; Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Arizona State University, Tempe, AZ, USA
| | - Dandan Zhou
- Engineering Lab for Water Pollution Control and Resources Recovery of Jilin Province, School of Environment, Northeast Normal University, Changchun, China
| | - Chen Zhou
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, USA.
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, USA
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Gholami F, Zinatizadeh AA, Zinadini S, Rittmann BE, Torres CI. Enhanced antifouling and flux performances of a composite membrane via incorporating
TiO
2
functionalized with hydrophilic groups of L‐cysteine for nanofiltration. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Foad Gholami
- Department of Applied Chemistry, Faculty of Chemistry Razi University Kermanshah Iran
| | - Ali Akbar Zinatizadeh
- Department of Applied Chemistry, Faculty of Chemistry Razi University Kermanshah Iran
- Environmental Research Center (ERC) Razi University Kermanshah Iran
| | - Sirus Zinadini
- Department of Applied Chemistry, Faculty of Chemistry Razi University Kermanshah Iran
- Environmental Research Center (ERC) Razi University Kermanshah Iran
| | - Bruce E. Rittmann
- Biodesign Swette Center for Environmental Biotechnology Arizona State University Tempe Arizona USA
- School of Sustainable Engineering and the Built Environment Arizona State University Tempe Arizona USA
| | - Cesar I. Torres
- Biodesign Swette Center for Environmental Biotechnology Arizona State University Tempe Arizona USA
- School for Engineering of Matter, Transport and Energy Arizona State University Tempe Arizona USA
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Zhou Y, Li R, Guo B, Xia S, Liu Y, Rittmann BE. The influent COD/N ratio controlled the linear alkylbenzene sulfonate biodegradation and extracellular polymeric substances accumulation in an oxygen-based membrane biofilm reactor. J Hazard Mater 2022; 422:126862. [PMID: 34416689 DOI: 10.1016/j.jhazmat.2021.126862] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 08/02/2021] [Accepted: 08/06/2021] [Indexed: 06/13/2023]
Abstract
This work evaluated the fates of linear alkylbenzene sulfonate (LAS), chemical oxygen demand (COD), ammonia nitrogen (NH4+-N), and total nitrogen (TN) when treating greywater (GW) in an oxygen-based membrane biofilm reactor (O2-MBfR). An influent ratio of chemical oxygen demand to total nitrogen (COD/TN) of 20 g COD/g N gave the best removals of LAS, COD, NH4+-N and TN, and it also had the greatest EPS accumulation in the biofilm. Higher EPS and improved performance were linked to increases in the relative abundances of bacteria able to biodegrade LAS (Zoogloea, Pseudomonas, Parvibaculum, Magnetospirillum and Mycobacterium) and to nitrify (Nitrosomonas and Nitrospira), as well as to ammonia oxidation related enzyme (ammonia monooxygenase). The EPS was dominated by protein, which played a key role in adsorbing LAS, achieving short-time protection from LAS toxicity and allowed LAS biodegradation. Continuous high-efficiency removal of LAS alleviated LAS toxicity to microbial physiological functions, including nitrification, nitrate respiration, the tricarboxylic acid (TCA) cycle, and adenosine triphosphate (ATP) production, achieving the stable high-efficient simultaneous removal of organics and nitrogen in the O2-MBfR.
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Affiliation(s)
- Yun Zhou
- State Environmental Protection Key Laboratory of Soil Health and Green Remediation, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China; University of Alberta, Department of Civil and Environmental Engineering, Edmonton, Alberta, Canada T6G 1H9
| | - Ran Li
- University of Alberta, Department of Civil and Environmental Engineering, Edmonton, Alberta, Canada T6G 1H9; College of Petroleum Engineering, Xi'an Shiyou University, Xi'an 710065, Shaanxi Province, China
| | - Bing Guo
- University of Alberta, Department of Civil and Environmental Engineering, Edmonton, Alberta, Canada T6G 1H9; Centre for Environmental Health and Engineering (CEHE), Department of Civil and Environmental Engineering, University of Surrey, Surrey GU2 7XH, United Kingdom
| | - Siqing Xia
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Yang Liu
- University of Alberta, Department of Civil and Environmental Engineering, Edmonton, Alberta, Canada T6G 1H9.
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ 85287-5701, United States
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Wu C, Zhou L, Zhou C, Zhou Y, Xia S, Rittmann BE. Co-removal of 2,4-dichlorophenol and nitrate using a palladized biofilm: Denitrification-promoted microbial mineralization following catalytic dechlorination. J Hazard Mater 2022; 422:126916. [PMID: 34425432 DOI: 10.1016/j.jhazmat.2021.126916] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 08/02/2021] [Accepted: 08/14/2021] [Indexed: 06/13/2023]
Abstract
The effects of nitrate on 2,4-dichlorophenol (2,4-DCP) dechlorination and biodegradation in a hydrogen (H2)-based palladized membrane biofilm reactor (Pd-MBfR) were studied. The Pd-MBfR was created by synthesizing palladium nanoparticle (Pd0NPs) that spontaneously associated with the biofilm to form a Pd0-biofilm. Without input of nitrate, the Pd-MBfR had rapid and stable catalytic hydrodechlorination: 93% of the 100-μM influent 2,4-DCP was continuously converted to phenol, part of which was then fermented via acetogenesis and methanogenesis. Introduction of nitrate enabled phenol mineralization via denitrification with only a minor decrease in catalytic hydrodechlorination. Phenol-degrading bacteria capable of nitrate respiration were enriched in the Pd0-biofilm, which was dominated by the heterotrophic genera Thauera and Azospira. Because the heterotrophic denitrifiers had greater yields than autotrophic denitrifiers, phenol was a more favorable electron donor than H2 for denitrification. This feature facilitated phenol mineralization and ameliorated denitrification inhibition of catalytic dechlorination through competition for H2. Increased nitrite loading eventually led to deterioration of the dechlorination flux and selectivity toward phenol. This study documents simultaneous removal of 2,4-DCP and nitrate in the Pd-MBfR and interactions between the two reductions.
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Affiliation(s)
- Chengyang Wu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China
| | - Luman Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China
| | - Chen Zhou
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, USA
| | - Yun Zhou
- Huazhong Agricultural University, Wuhan, China
| | - Siqing Xia
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China.
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, USA
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Chen S, Yang C, Zhu G, Zhang H, Yan N, Zhang Y, Rittmann BE. Selective acceleration of 2-hydroxyl pyridine mono-oxygenation using specially acclimated biomass. J Environ Manage 2022; 301:113887. [PMID: 34610559 DOI: 10.1016/j.jenvman.2021.113887] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/26/2021] [Accepted: 09/29/2021] [Indexed: 06/13/2023]
Abstract
Biodegradation of pyridine starts with two mono-oxygenation reactions, and 2-hydroxyl pyridine (2-HP) accumulates as pyridine is mono-oxygenated in the first reaction. The accumulation of 2-HP inhibits both initial reactions. Therefore, selective acceleration of the second mono-oxygenation reaction should significantly enhance pyridine transformation and mineralization. Activated-sludge biomass was separately acclimated with pyridine or 2-HP to produce pyridine- and 2-HP-acclimated biomasses. The pyridine-acclimated biomass was superior for pyridine biodegradation, but the 2-HP-acclimated biomass was superior for 2-HP biodegradation. As a consequence, the pyridine-acclimated biomass by itself achieved faster mono-oxygenation of pyridine to 2-HP, but 2-HP accumulated, which limited mineralization to 60%. In contrast, mineralization reached 90% when one-third of the pyridine-acclimated was replaced with 2-HP-acclimated biomass, because 2-HP did not accumulate during pyridine biodegradation. The lack of 2-HP accumulation relieved its inhibition: e.g., the pyridine removal rates, normalized to the mass of pyridine-acclimated biomass, increased from 0.52 to 0.57 mM0.5⋅h-1 when one-third of the pyridine-acclimated biomass was replaced by 2-HP-acclimated biomass. Phylogenetic analysis showed that microbiological communities of pyridine-acclimated biomass and 2-HP-acclimated biomass differed in important ways. On the one hand, the 2-HP-acclimated biomass was richer and dominated by a rare biosphere, or genera having <0.1% of total reads. On the other hand, the most-enriched genus in the pyridine-acclimated community (Methylibium) is associated with the first mono-oxygenation of pyridine, while enriched genera in the 2-HP-acclimated community (Sediminibacterium and Dokdonella) are associated with the second mono-oxygenation of pyridine.
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Affiliation(s)
- Songyun Chen
- Department of Environmental Engineering, School of Environmental and Geographical Science, Shanghai Normal University, Shanghai, 200234, PR China; Yangtze Delta Wetland Ecosystem National Field Scientific Observation and Research Station, PR China
| | - Chao Yang
- Department of Environmental Engineering, School of Environmental and Geographical Science, Shanghai Normal University, Shanghai, 200234, PR China; Yangtze Delta Wetland Ecosystem National Field Scientific Observation and Research Station, PR China
| | - Ge Zhu
- Department of Environmental Engineering, School of Environmental and Geographical Science, Shanghai Normal University, Shanghai, 200234, PR China; Yangtze Delta Wetland Ecosystem National Field Scientific Observation and Research Station, PR China
| | - Haiyun Zhang
- Department of Environmental Engineering, School of Environmental and Geographical Science, Shanghai Normal University, Shanghai, 200234, PR China; Yangtze Delta Wetland Ecosystem National Field Scientific Observation and Research Station, PR China
| | - Ning Yan
- Department of Environmental Engineering, School of Environmental and Geographical Science, Shanghai Normal University, Shanghai, 200234, PR China; Yangtze Delta Wetland Ecosystem National Field Scientific Observation and Research Station, PR China.
| | - Yongming Zhang
- Department of Environmental Engineering, School of Environmental and Geographical Science, Shanghai Normal University, Shanghai, 200234, PR China; Yangtze Delta Wetland Ecosystem National Field Scientific Observation and Research Station, PR China.
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ85287-5701, USA
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Long M, Elias WC, Heck KN, Luo YH, Lai YS, Jin Y, Gu H, Donoso J, Senftle TP, Zhou C, Wong MS, Rittmann BE. Hydrodefluorination of Perfluorooctanoic Acid in the H 2-Based Membrane Catalyst-Film Reactor with Platinum Group Metal Nanoparticles: Pathways and Optimal Conditions. Environ Sci Technol 2021; 55:16699-16707. [PMID: 34874150 DOI: 10.1021/acs.est.1c06528] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
PFAAs (perfluorinated alkyl acids) have become a concern because of their widespread pollution and persistence. A previous study introduced a novel approach for removing and hydrodefluorinating perfluorooctanoic acid (PFOA) using palladium nanoparticles (Pd0NPs) in situ synthesized on H2-gas-transfer membranes. This work focuses on the products, pathways, and optimal catalyst conditions. Kinetic tests tracking PFOA removal, F- release, and hydrodefluorination intermediates documented that PFOA was hydrodefluorinated by a mixture of parallel and stepwise reactions on the Pd0NP surfaces. Slow desorption of defluorination products lowered the catalyst's activity for hydrodefluorination. Of the platinum group metals studied, Pd was overall superior to Pt, Rh, and Ru for hydrodefluorinating PFOA. pH had a strong influence on performance: PFOA was more strongly adsorbed at higher pH, but lower pH promoted defluorination. A membrane catalyst-film reactor (MCfR), containing an optimum loading of 1.2 g/m2 Pd0 for a total Pd amount of 22 mg, removed 3 mg/L PFOA during continuous flow for 90 days, and the removal flux was as high as 4 mg PFOA/m2/d at a steady state. The EPA health advisory level (70 ng/L) also was achieved over the 90 days with the influent PFOA at an environmentally relevant concentration of 500 ng/L. The results document a sustainable catalytic method for the detoxification of PFOA-contaminated water.
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Affiliation(s)
- Min Long
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287-5701, United States
- Nanosystems Engineering Research Center for Nanotechnology Enabled Water Treatment, Houston, Texas 77005, United States
| | - Welman C Elias
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005-1892, United States
| | - Kimberly N Heck
- Nanosystems Engineering Research Center for Nanotechnology Enabled Water Treatment, Houston, Texas 77005, United States
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005-1892, United States
| | - Yi-Hao Luo
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287-5701, United States
| | - YenJung Sean Lai
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287-5701, United States
| | - Yan Jin
- Arizona Metabolomics Laboratory, College of Health Solutions, Arizona State University, Phoenix, Arizona 85004, United States
| | - Haiwei Gu
- Arizona Metabolomics Laboratory, College of Health Solutions, Arizona State University, Phoenix, Arizona 85004, United States
| | - Juan Donoso
- Nanosystems Engineering Research Center for Nanotechnology Enabled Water Treatment, Houston, Texas 77005, United States
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005-1892, United States
| | - Thomas P Senftle
- Nanosystems Engineering Research Center for Nanotechnology Enabled Water Treatment, Houston, Texas 77005, United States
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005-1892, United States
| | - Chen Zhou
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287-5701, United States
- Nanosystems Engineering Research Center for Nanotechnology Enabled Water Treatment, Houston, Texas 77005, United States
| | - Michael S Wong
- Nanosystems Engineering Research Center for Nanotechnology Enabled Water Treatment, Houston, Texas 77005, United States
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005-1892, United States
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287-5701, United States
- Nanosystems Engineering Research Center for Nanotechnology Enabled Water Treatment, Houston, Texas 77005, United States
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Long M, Donoso J, Bhati M, Elias WC, Heck KN, Luo YH, Lai YS, Gu H, Senftle TP, Zhou C, Wong MS, Rittmann BE. Adsorption and Reductive Defluorination of Perfluorooctanoic Acid over Palladium Nanoparticles. Environ Sci Technol 2021; 55:14836-14843. [PMID: 34496574 DOI: 10.1021/acs.est.1c03134] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Per- and polyfluoroalkyl substances (PFASs) comprise a group of widespread and recalcitrant contaminants that are attracting increasing concern due to their persistence and adverse health effects. This study evaluated removal of one of the most prevalent PFAS, perfluorooctanoic acid (PFOA), in H2-based membrane catalyst-film reactors (H2-MCfRs) coated with palladium nanoparticles (Pd0NPs). Batch tests documented that Pd0NPs catalyzed hydrodefluorination of PFOA to partially fluorinated and nonfluorinated octanoic acids; the first-order rate constant for PFOA removal was 0.030 h-1, and a maximum defluorination rate was 16 μM/h in our bench-scale MCfR. Continuous-flow tests achieved stable long-term depletion of PFOA to below the EPA health advisory level (70 ng/L) for up to 70 days without catalyst loss or deactivation. Two distinct mechanisms for Pd0-based PFOA removal were identified based on insights from experimental results and density functional theory (DFT) calculations: (1) nonreactive chemisorption of PFOA in a perpendicular orientation on empty metallic surface sites and (2) reactive defluorination promoted by physiosorption of PFOA in a parallel orientation above surface sites populated with activated hydrogen atoms (Hads*). Pd0-based catalytic reduction chemistry and continuous-flow treatment may be broadly applicable to the ambient-temperature destruction of other PFAS compounds.
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Affiliation(s)
- Min Long
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287-5701, United States
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Houston, Texas 77005, United States
| | - Juan Donoso
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Houston, Texas 77005, United States
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005-1892, United States
| | - Manav Bhati
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Houston, Texas 77005, United States
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005-1892, United States
| | - Welman C Elias
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005-1892, United States
| | - Kimberly N Heck
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Houston, Texas 77005, United States
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005-1892, United States
| | - Yi-Hao Luo
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287-5701, United States
| | - YenJung Sean Lai
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287-5701, United States
| | - Haiwei Gu
- Arizona Metabolomics Laboratory, College of Health Solutions, Arizona State University, Phoenix, Arizona 85004, United States
| | - Thomas P Senftle
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Houston, Texas 77005, United States
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005-1892, United States
| | - Chen Zhou
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287-5701, United States
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Houston, Texas 77005, United States
| | - Michael S Wong
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Houston, Texas 77005, United States
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005-1892, United States
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona 85287-5701, United States
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Houston, Texas 77005, United States
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Xu Y, Curtis T, Dolfing J, Wu Y, Rittmann BE. N-acyl-homoserine-lactones signaling as a critical control point for phosphorus entrapment by multi-species microbial aggregates. Water Res 2021; 204:117627. [PMID: 34509868 DOI: 10.1016/j.watres.2021.117627] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 08/26/2021] [Accepted: 08/27/2021] [Indexed: 06/13/2023]
Abstract
Quorum sensing (QS) has been extensively studied in pure stains of microorganisms, but the ecological roles of QS in multi-species microbial aggregates are poorly understood due to the aggregates' heterogeneity and complexity, in particular the phosphorus (P) entrapment, a key aspect of element cycling. Using periphytic biofilm as a microbial-aggregate model, we addressed how QS signaling via N-acyl-homoserine-lactones (AHLs) regulated P entrapment. The most-abundant AHLs detected were C8-HSL, 3OC8-HSL, and C12-HSL, are the primary regulator of P entrapment in the periphytic biofilm. QS signaling-AHL is a beneficial molecule for bacterial growth in periphytic biofilm and the addition of these three AHLs optimized polyphosphate accumulating organisms (PAOs) community. Growth promotion was accompanied by up-regulation of pyrimidine, purine and energy metabolism. Both intra- and extra-cellular P entrapment were enhanced in the addition of AHLs. AHLs increased extracellular polymeric substances (EPS) production to drive extracellular P entrapment, via up-regulating amino acids biosynthesis and amino sugar/nucleotide sugar metabolism. Also, AHLs improved intracellular P entrapment potential by regulating genes involved in inorganic-P accumulation (ppk, ppx) and P uptake and transport (pit, pstSCAB). This proof-of-concept evidence about how QS signaling regulates P entrapment by microbial aggregates paves the way for managing QS to enhance P removal by microbial aggregates in aquatic environments.
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Affiliation(s)
- Ying Xu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, 71 East Beijing Road, Nanjing 210008, China; Zigui Three Gorges Reservoir Ecosystem, Observation and Research Station of Ministry of Water Resources of the People's Republic of China, Shuitianba Zigui, Yichang 443605, China; College of Resource and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Thomas Curtis
- School of Civil Engineering and Geosciences, Newcastle University, Newcastle upon Tyne NE1 7RU, UK
| | - Jan Dolfing
- Faculty of Energy and Environment, Northumbria University, Newcastle upon Tyne NE1 8QH, UK
| | - Yonghong Wu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, 71 East Beijing Road, Nanjing 210008, China; Zigui Three Gorges Reservoir Ecosystem, Observation and Research Station of Ministry of Water Resources of the People's Republic of China, Shuitianba Zigui, Yichang 443605, China.
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, P. O. Box 875701, Tempe, AZ 85287-5701, USA
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