1
|
Liu Y, Zheng M, Lv L, Chen G, Wang C, Hu Z, Feng J, Xie B, Han H, Wang W. Reversing inhibition to promotion in phenol-ammonium metabolism via algal-microbial fuel cell: Mechanisms of phenol-ammonium interaction and synergistic removal. JOURNAL OF HAZARDOUS MATERIALS 2025; 493:138417. [PMID: 40311522 DOI: 10.1016/j.jhazmat.2025.138417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2025] [Revised: 04/19/2025] [Accepted: 04/25/2025] [Indexed: 05/03/2025]
Abstract
Addressing the challenge of metabolic inhibition between phenol and ammonium in coal gasification wastewater (CGW), this study introduced a novel algal-microbial fuel cell (AMFC). It combined the advantages of electroactive bacteria and Synechocystis to achieve synergistic metabolism, establishing a cooperative mechanism for pollutant separation and enhanced transformation to achieve the mutual promotion of phenol and ammonium removal. Remarkably, raising phenol to 1500 mg COD/L boosted ammonium removal by 31.51 % in AMFC, due to a consistently higher potential difference than the control, which enhanced extracellular electron transfer (EET) via conductive nanowire and drove ammonium migration. Similarly, elevating ammonium concentration to 150 mg/L resulted in an 11.79 % increase in phenol removal efficiency, driven by superior solution conductivity and EET, as well as more electron acceptors (oxygen) from the algal cathode. This system challenged the conventional understanding of the antagonistic relationship between phenol and ammonium. Under high phenol conditions, the electroactive bacteria Clostridium sensu stricto 1 and Acinetobacter, Perlucidibaca formed a synergistic metabolic network, whereas Zoogloea, Ideonella, and other phenol-degrading bacteria were significantly enriched in high ammonium environments. The AMFC represented a breakthrough in reversing the metabolic inhibition between phenol and ammonium, providing a novel and energy-efficient strategy for treating complex industrial wastewater.
Collapse
Affiliation(s)
- Yaqi Liu
- Department of Municipal Engineering, School of Civil Engineering, Hefei University of Technology, Hefei 230009, China; Anhui Provincial Engineering Laboratory for Rural Water Environment and Resources, Hefei 230009, China
| | - Mengqi Zheng
- Department of Municipal Engineering, School of Civil Engineering, Hefei University of Technology, Hefei 230009, China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China; Anhui Province Key Laboratory of Industrial Wastewater and Environmental Treatment, Hefei 230024, China; Anhui Provincial Engineering Laboratory for Rural Water Environment and Resources, Hefei 230009, China.
| | - Longyi Lv
- Tianjin Key Laboratory of Clean Energy and Pollution Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, China
| | - Guowei Chen
- Department of Municipal Engineering, School of Civil Engineering, Hefei University of Technology, Hefei 230009, China; Anhui Provincial Engineering Laboratory for Rural Water Environment and Resources, Hefei 230009, China
| | - Chengye Wang
- Department of Municipal Engineering, School of Civil Engineering, Hefei University of Technology, Hefei 230009, China; Anhui Provincial Engineering Laboratory for Rural Water Environment and Resources, Hefei 230009, China
| | - Zhenhu Hu
- Department of Municipal Engineering, School of Civil Engineering, Hefei University of Technology, Hefei 230009, China; Anhui Provincial Engineering Laboratory for Rural Water Environment and Resources, Hefei 230009, China
| | - Jingwei Feng
- Department of Municipal Engineering, School of Civil Engineering, Hefei University of Technology, Hefei 230009, China; Anhui Provincial Engineering Laboratory for Rural Water Environment and Resources, Hefei 230009, China
| | - Binghan Xie
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Hongjun Han
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Wei Wang
- Department of Municipal Engineering, School of Civil Engineering, Hefei University of Technology, Hefei 230009, China; Anhui Province Key Laboratory of Industrial Wastewater and Environmental Treatment, Hefei 230024, China; Anhui Provincial Engineering Laboratory for Rural Water Environment and Resources, Hefei 230009, China.
| |
Collapse
|
2
|
Zhou L, Wu M, Guo J. Robust biogas upgrading process via homoacetogens against ammonia and sulfide toxicities. WATER RESEARCH 2025; 279:123440. [PMID: 40064140 DOI: 10.1016/j.watres.2025.123440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2024] [Revised: 02/06/2025] [Accepted: 03/04/2025] [Indexed: 05/06/2025]
Abstract
Using hydrogen derived from surplus green energy (e.g., solar and wind) to convert carbon dioxide to acetate via homoacetogens represents a promising technology for simultaneous biogas upgrading and biochemical production. However, effects of hydrogen sulfide and ammonia on activities of homoacetogens remain unknown, hindering their applications in biogas upgrading. This study investigated the impacts of ammonia and sulfide on homoacetogen-dominated microbial community for biogas upgrading process by combining short-term batch tests and long-term membrane biofilm reactor (MBfR) operation. Results showed that sulfide concentrations ≤ 2 mM TDS (total dissolved sulfide) increased H2 and CO2 uptake rates and acetate production both in the short-term and long-term tests. The relative abundance of Acetobacterium (typical homoacetogens) in the MBfR also increased from 30 % without TDS addition to 40 % with the addition of 2 mM TDS. These results suggest that sulfide addition (≤ 2 mM TDS) likely promoted the growth of homoacetogens, thereby enhancing the biogas upgrading efficiency. In terms of ammonia, results suggested that 0.5 g NH4+-N/L has negligible impacts on the homoacetogens' activities, while concentrations ≥ 1 g NH4+-N/L significantly inhibited homoacetogens' activities, resulting in negligible acetate production during the short-term tests. However, the long-term biogas upgrading performance remained unaffected by 1 g NH4+-N/L. Moreover, with the simultaneous additions of typical concentrations of sulfide (2 mM TDS, equivalent to the H2S concentration of 0.8 % in biogas) and ammonia (1 g NH4+-N/L, equivalent to the NH3 concentration of 0.1 % in biogas) in raw biogas, our MBfR still achieved high H2 and CO2 utilization efficiencies (95 % and 97 %, respectively) and acetate production rate (550 mg/L/d). These highlight the robustness of MBfR against ammonia and sulfide toxicities. Additionally, the injection of extra H2 could alleviate the ammonia and sulfide inhibitions on homoacetogens with acetate production increased by 13-80 times. This provides a new strategy to enhance the tolerance of homoacetogens against high concentrations of hydrogen sulfide and ammonia. Collectively, our findings advance the understanding of the response of homoacetogens to ammonia and sulfide stress and facilitate the development of a resilient and efficient homoacetogen-mediated bioprocess for upgrading biogas to biomethane and chemicals simultaneously.
Collapse
Affiliation(s)
- Linjie Zhou
- Australian Centre for Water and Environmental Biotechnology, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia
| | - Mengxiong Wu
- Australian Centre for Water and Environmental Biotechnology, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia.
| | - Jianhua Guo
- Australian Centre for Water and Environmental Biotechnology, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia.
| |
Collapse
|
3
|
Balasundaram G, Gahlot P, Hafyan RH, Tyagi VK, Gadkari S, Sahu A, Barber B, Mutiyar PK, Kazmi AA, Kleiven H. Anaerobic digestion of thermal hydrolysis pretreated sludge: Process performance, metagenomic analysis, techno-economic and life cycle assessment. BIORESOURCE TECHNOLOGY 2025; 428:132470. [PMID: 40174653 DOI: 10.1016/j.biortech.2025.132470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2024] [Revised: 03/29/2025] [Accepted: 03/29/2025] [Indexed: 04/04/2025]
Abstract
This study assessed the potential of thermal hydrolysis process (THP) combined with anaerobic digestion (AD) for high solids sewage sludge treatment across various hydraulic retention times (HRTs). Optimal performance was achieved at a 10-day HRT (6 kg VS/m3·day), yielding 408 L CH4/kg VS added and 54 % volatile solids (VS) removal under THP conditions of 160 °C, 30 min, and 6 bar pressure. Microbial analysis revealed predominant acetoclastic and hydrogenotrophic methanogens. Four scenarios were designed and analyzed for environmental and economic performance: Scenario 1 (conventional AD-CHP), Scenario 2 (conventional AD-BioCNG), Scenario 3 (THP AD-BioCNG), and Scenario 4 (THP AD-CHP). The results showed that scenarios with CHP integration achieved better environmental performance by generating sufficient energy to meet demand, with energy consumption as a key factor. Notably, scenario 4 had the lowest global warming potential (GWP) at -0.0185 kg CO2-eq, outperforming conventional AD (Scenario 1) with CHP, which had a GWP of -0.00232 kg CO2-eq. However, profitability analysis showed that Scenario 3 was the most economically viable, with a net present value (NPV) of $4.3 million, an internal rate of return (IRR) of 10.21 %, and a 17-year payback period. Although it had higher capital ($58 million) and operational costs ($12.5 million/year) than Scenario 4 ($45 million and $8.6 million/year), its greater biomethane yield resulted in higher revenue ($20.7 million/year), making it the most profitable option. While Scenario 4 offered the best environmental benefits, Scenario 3 emerged as the most financially sustainable choice. These findings highlight the environmental and economic advantage of utilizing THP-AD process over conventional AD, suggesting that THP-AD optimizes methane production, solids reduction, and environmental impact, making the Bio CNG pathway a sustainable and economically viable option.
Collapse
Affiliation(s)
- Gowtham Balasundaram
- Department of Civil Engineering, Indian Institute of Technology Roorkee, 247667, India
| | - Pallavi Gahlot
- Department of Civil Engineering, Indian Institute of Technology Roorkee, 247667, India
| | - Rendra Hakim Hafyan
- School of Chemistry and Chemical Engineering, University of Surrey, Guildford GU2 7XH, UK
| | - Vinay Kumar Tyagi
- Environmental Hydrology Division, National Institute of Hydrology, Roorkee 247667, India.
| | - Siddharth Gadkari
- School of Chemistry and Chemical Engineering, University of Surrey, Guildford GU2 7XH, UK
| | - Ashish Sahu
- Cambi AS, Skysstasjon 11A, 1383 Asker, Norway
| | - Bill Barber
- Cambi AS, Skysstasjon 11A, 1383 Asker, Norway
| | - Pravin K Mutiyar
- National Mission for Clean Ganga, Department of Water Resources, Ministry of Jal Shakti, Govt. of India, New Delhi, India
| | - A A Kazmi
- Department of Civil Engineering, Indian Institute of Technology Roorkee, 247667, India
| | | |
Collapse
|
4
|
Raja W, Rohith GSN, Brar SK, Kumar P. Decentralized sewage treatment and energy recovery in high-rise buildings using anaerobic baffle reactor coupled with plant biofilter reactor: A focus on surfactant and phenol removal. THE SCIENCE OF THE TOTAL ENVIRONMENT 2025; 982:179661. [PMID: 40382961 DOI: 10.1016/j.scitotenv.2025.179661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2025] [Revised: 05/10/2025] [Accepted: 05/10/2025] [Indexed: 05/20/2025]
Abstract
The emergence of phenols and surfactants in domestic wastewater, largely attributed to changing Water, Sanitation, and Hygiene (WASH) practices, presents treatment challenges for conventional centralized systems. This study evaluates the performance of an integrated Anaerobic Baffled Reactor (ABR) and Plant Biofilter Reactor (PBFR) system for decentralized wastewater treatment and biogas recovery, focusing on its applicability in high-rise infrastructures. Real domestic wastewater, containing ammonia (55 mg/L), soluble chemical oxygen demand (s-COD, 580 mg/L), phenols (16 mg/L), and surfactants (17 mg/L), was treated under varying hydraulic retention times (HRTs) of 1, 2, and 3 days. At an HRT of 2 days, the system achieved up to 76 % ammonia removal, while phenol and surfactant removal reached 52 % and 85 % at 3 days HRT. COD removal exceeded 60 % across all HRTs. Principal Component Analysis (PCA) was employed to statistically interpret treatment performance. Mass spectrometry identified degradation by-products of phenols and surfactants, and their influence on biogas generation was assessed. Gas chromatography analysis indicated a high-quality biogas yield (CH₄ > 70 %, CO₂ ∼ 20 %). Adding dextrose significantly enhanced gas production by stimulating microbial metabolism compared to fructose and sucrose. However, high influent concentrations of phenols and surfactants exhibited inhibitory effects on microbial activity, emphasizing the need for controlled organic loading. MTT-based cytotoxicity assays confirmed the treated effluent's non-toxic nature. These findings demonstrate the technical feasibility of integrated ABR-PBFR systems for treating complex wastewater streams while enabling energy recovery. The study provides a scalable and sustainable framework for decentralized wastewater management in urban high-rise settings, supporting circular economy and sustainable water management objectives.
Collapse
Affiliation(s)
- Waseem Raja
- Department of Civil Engineering, Indian Institute of Technology Jammu, Nagrota, Jammu and Kashmir 181221, India.
| | | | - Satinder Kaur Brar
- Department of Civil Engineering, Lassonde School of Engineering, York University, Toronto, Ontario M3J 1P3, Canada.
| | - Pratik Kumar
- Department of Civil Engineering, Indian Institute of Technology Jammu, Nagrota, Jammu and Kashmir 181221, India.
| |
Collapse
|
5
|
de Nicolás AP, Serra-Toro A, Ventura M, Astals S, Dosta J, Mas F, Segura Y, Melero JA, Martínez F, Puyol D. Pig slurry valorization by ammonia recovery, biogas upgrading and microbial protein production. BIORESOURCE TECHNOLOGY 2025:132710. [PMID: 40490154 DOI: 10.1016/j.biortech.2025.132710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2024] [Revised: 05/05/2025] [Accepted: 05/21/2025] [Indexed: 06/11/2025]
Abstract
The management of pig slurry is associated with environmental concerns due to its high nitrogen content and greenhouse gas emissions. This work proposes a photobiorefinery concept integrating steam explosion pretreatment, ammonia recovery via gas-permeable membranes, anaerobic digestion, and microbial protein production using purple phototrophic bacteria (PPB). Pretreatment at 145 °C for 30 min led to 57% solubilization of organic matter and 29% reduction of total solids. More than 99% of ammoniacal nitrogen was recovered from the hydrolysate in less than 3 h. Methane production increased by up to 350% after pretreatment. The recovered nitrogen was used as a nutrient for PPB growth, enabling CO2 assimilation from biogas under photoautotrophic conditions and microbial protein production. The results demonstrate the feasibility of coupling thermal, biological, and phototrophic processes for the integrated valorization of pig slurry, with simultaneous recovery of energy and nutrients.
Collapse
Affiliation(s)
| | - Andreu Serra-Toro
- Chemical Engineering and Analytical Chemistry Department, University of Barcelona, Barcelona, Spain
| | - Maria Ventura
- Chemical and Environmental Engineering Group, Universidad Rey Juan Carlos, Móstoles, Spain
| | - Sergi Astals
- Chemical Engineering and Analytical Chemistry Department, University of Barcelona, Barcelona, Spain
| | - Joan Dosta
- Chemical Engineering and Analytical Chemistry Department, University of Barcelona, Barcelona, Spain; Water Research Institute, University of Barcelona, Barcelona, Spain
| | - Francesc Mas
- Materials Science and Physical Chemistry Department, Research Institute of Theoretical and Computational Chemistry (IQTCUB), University of Barcelona, Barcelona, Spain
| | - Yolanda Segura
- Chemical and Environmental Engineering Group, Universidad Rey Juan Carlos, Móstoles, Spain
| | - Juan A Melero
- Chemical and Environmental Engineering Group, Universidad Rey Juan Carlos, Móstoles, Spain; Instituto de Investigación de Tecnologías para la Sostenibilidad (ITPS), Universidad Rey Juan Carlos, Móstoles, Spain
| | - Fernando Martínez
- Chemical and Environmental Engineering Group, Universidad Rey Juan Carlos, Móstoles, Spain; Instituto de Investigación de Tecnologías para la Sostenibilidad (ITPS), Universidad Rey Juan Carlos, Móstoles, Spain
| | - Daniel Puyol
- Chemical and Environmental Engineering Group, Universidad Rey Juan Carlos, Móstoles, Spain.
| |
Collapse
|
6
|
Hu J, Liu CG, Zhang WK, Liu XW, Dong B, Wang ZD, Xie YG, Hua ZS, Liu XW. Decomposing the molecular complexity and transformation of dissolved organic matter for innovative anaerobic bioprocessing. Nat Commun 2025; 16:4859. [PMID: 40414853 DOI: 10.1038/s41467-025-60240-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Accepted: 05/20/2025] [Indexed: 05/27/2025] Open
Abstract
The sustainable transformation and management of dissolved organic matter (DOM) are crucial for advancing organic waste treatment towards resource-oriented processes. However, the intricate molecular complexity of DOM poses significant challenges, impeding a comprehensive understanding of the underlying biochemical processes. Here, we focus on the chemical "dark matter" mining using ultra-high resolution mass spectrometry technologies to elucidate the molecular diversity and transformation in anaerobic bioprocessing of food waste. We developed an analytical framework that reveals the persistence of DOM in the final effluent is mainly determined by its molecular properties, such as carbon chain length, aromaticity, unsaturation, and redox states. Our in-depth characterization and quantitative analysis of key biochemical reactions unveils the evolution of DOM composition, providing valuable insights into the targeted conversion of persistent molecules toward full utilization. Additionally, we establish a correlation between the redox state and energy density of a broad range of DOM molecules, enabling us to comprehend and evaluate their biodegradability. These insights enhance the mechanistic understanding of DOM transformation, guiding the rational design and regulation of sustainable organic waste treatment strategies.
Collapse
Affiliation(s)
- Jun Hu
- Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Chuan-Guo Liu
- Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Wen-Kai Zhang
- Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Xue-Wen Liu
- Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Bin Dong
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, 230026, China
| | - Zhan-Dong Wang
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, 230026, China
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230029, PR China
| | - Yuan-Guo Xie
- Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Zheng-Shuang Hua
- Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Xian-Wei Liu
- Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, 230026, China.
| |
Collapse
|
7
|
Magonara C, Montagnese E, Bertasini D, Vona C, Salvatori G, Tayou LN, Villano M, Battista F, Frison N, Bolzonella D, Pesante G. Mixed-culture polyhydroxyalkanoate production with variable hydroxyvalerate content from agri-food residues. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2025:10.1007/s11356-025-36316-4. [PMID: 40240659 DOI: 10.1007/s11356-025-36316-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2024] [Accepted: 03/19/2025] [Indexed: 04/18/2025]
Abstract
Agri -food residues represent an unutilised biomass that can be valorised into high-value compounds. Polyhydroxyalkanoates (PHAs) are one such product, offering a sustainable alternative to fossil-based plastics. PHAs containing hydroxyvalerate monomers (PHBV) are more flexible and less crystalline than pure PHB, making them suitable for a broader range of applications. This study focused on producing PHBV with a targeted hydroxyvalerate monomer content (25-35%, w/w) for use in agricultural materials. Different types of feedstocks (ranging from synthetic to agri-food residue fermentation fluid) were used with mixed microbial cultures to achieve the desired hydroxyvalerate content in the stored PHA. The COD removal efficiency of the selection reactor ranged from 81.6 to 99.1% with synthetic feed, indicating effective substrate uptake, whereas agricultural fermentate resulted in lower carbon uptake (71.4-85.9%). Despite fluctuations throughout the study, the desired hydroxyvalerate monomer content was successfully obtained. The molecular weight and distribution were challenging to correlate with the different feedstocks, though they remained suitable for thermoplastic processing for most set-ups (352 to 1369 kDa). The bacterial community composition changed throughout the selection process, with the feast/famine regime favouring PHA producers such as Thauera, Paracoccus, Neomegalonema, Corynebacterium, and Flavobacterium; however, the introduction of agricultural fermentate led to a loss in speciation.
Collapse
Affiliation(s)
- Claudia Magonara
- Department of Biotechnology, University of Verona, Verona, 37134, Italy
| | - Elvis Montagnese
- Department of Biotechnology, University of Verona, Verona, 37134, Italy
| | - Davide Bertasini
- Department of Biotechnology, University of Verona, Verona, 37134, Italy
| | - Claudia Vona
- Department of Chemistry, Sapienza University of Rome, Roma, 00185, Italy
| | - Gaia Salvatori
- Department of Chemistry, Sapienza University of Rome, Roma, 00185, Italy
| | | | - Marianna Villano
- Department of Chemistry, Sapienza University of Rome, Roma, 00185, Italy
| | - Federico Battista
- Department of Biotechnology, University of Verona, Verona, 37134, Italy
| | - Nicola Frison
- Department of Biotechnology, University of Verona, Verona, 37134, Italy
| | - David Bolzonella
- Department of Biotechnology, University of Verona, Verona, 37134, Italy
| | - Giovanna Pesante
- Department of Biotechnology, University of Verona, Verona, 37134, Italy.
| |
Collapse
|
8
|
Chen N, Zhang X, Qi L, Gao F, Wu G, Li H, Guo W, Ngo HH. Enhancement of volatile fatty acids degradation and rapid methanogenesis in a biochar-assisted anaerobic membrane bioreactor via enhancing direct interspecies electron transfer. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2025; 380:125045. [PMID: 40127599 DOI: 10.1016/j.jenvman.2025.125045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2024] [Revised: 02/18/2025] [Accepted: 03/16/2025] [Indexed: 03/26/2025]
Abstract
In this investigation, we assessed the efficacy of a biochar-supported anaerobic membrane bioreactor (BC-AnMBR) for continuously treating swine wastewater (SWW) under varying NH4+-N stress levels. Our findings revealed that as the NH4+-N concentration escalated from 440 mg/L to 1400 mg/L, the BC-AnMBR exhibited a notable 14.5 % improvement in NH4+-N removal under heightened ammonia pressure compared to the conventional AnMBR (CG-AnMBR). This enhancement primarily stemmed from ion-exchange interactions between the functional groups (hydroxyl, carboxyl, ester, and aldehyde groups) on the biochar surface and NH4+-N, serving as the primary mechanism of action. Moreover, concerning resource recovery, the BC-AnMBR sustained a standard methane yield of 0.184 LCH4/gCOD, surpassing that of the CG-AnMBR by more than threefold. Microbial community analysis unveiled that the BC-AnMBR fostered the enrichment of ammonia-tolerant electroactive methanogenic archaea, notably from the genera Methanosarcina and Methanolinea. Notably, up-regulation of functional genes associated with key enzymes involved in propionic and butyric acid degradation and the autotrophic methanogenic pathway was observed in the BC-AnMBR, consequently accelerating methane production rates. Ultimately, the incorporation of biochar amplified the activity of the microbial electron transport system by 41.77 % and boosted the concentration of c-type cytochrome by 50.6 %. These enhancements facilitated the establishment of direct interspecies electron transfer, ensuring the stability of the anaerobic digestion process under ammonia-inhibited conditions.
Collapse
Affiliation(s)
- Nianwen Chen
- Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin, 300384, China; Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Jinjing Road 26, Tianjin, 300384, China
| | - Xinbo Zhang
- Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin, 300384, China; Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Jinjing Road 26, Tianjin, 300384, China.
| | - Li Qi
- Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin, 300384, China; Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Jinjing Road 26, Tianjin, 300384, China
| | - Fu Gao
- Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin, 300384, China; Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Jinjing Road 26, Tianjin, 300384, China
| | - Guangxue Wu
- Civil Engineering, School of Engineering, College of Science and Engineering, University of Galway, Galway, H91 TK33, Ireland
| | - Hongxia Li
- Tianjin Caring Technology Development Co., Ltd., Haitai North Road 2, Tianjin, 300381, China
| | - Wenshan Guo
- Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin, 300384, China; Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Huu Hao Ngo
- Joint Research Centre for Protective Infrastructure Technology and Environmental Green Bioprocess, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin, 300384, China; Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW, 2007, Australia.
| |
Collapse
|
9
|
Wei X, Li S, Li C, Liao J, Yang Y, He Z, Dong K, Lee SS. Characterization and genomic insights into the nitrogen metabolism of heterotrophic nitrifying and aerobic denitrifying bacterium Pseudomonas aeruginosa WS-03. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2025; 376:124405. [PMID: 39955900 DOI: 10.1016/j.jenvman.2025.124405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2024] [Revised: 01/22/2025] [Accepted: 01/29/2025] [Indexed: 02/18/2025]
Abstract
To achieve effective removal of various inorganic nitrogen in aquatic ecosystems, while expanding the applicability of existing heterotrophic nitrifying-aerobic denitrifying (HN-AD) strains and enhancing their stress tolerance, we isolated the Pseudomonas aeruginosa WS-03 from a sewage treatment plant. The results of parameter optimization indicated that the following were the most favorable conditions for nitrogen removal: using sodium citrate as the carbon source, a C/N ratio of 9, a pH of 7, a temperature of 30 °C and an NH4+-N concentrations below 300 mg/L. The maximum reduction rates of nitrogen are 8.96 mg/(L·h), 4.64 mg/(L·h) and 5.12 mg/(L·h) of NH4+-N, NO3--N and TN, respectively. The result of genome analysis and polymerase chain reaction (PCR) amplification electrophoresis revealed the presence of genes related to nitrogen metabolism, which involves nitrification, denitrification, and assimilation pathways. It also verified that absence of key nitrification genes in strain WS-03, suggesting it operates via a unique denitrification mechanism. Notably, nitrogen assimilation has been identified as the predominant pathway for nitrogen removal by the strain. The strain demonstrated an impressive efficiency of 54.28% in reducing the concentration of NH4+-N in untreated landfill leachate, highlighting its potential for application in practical wastewater treatment. This study comprehensively explored the denitrification characteristics and showed its significant role in environmental remediation.
Collapse
Affiliation(s)
- Xinyu Wei
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Shanshan Li
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Cong Li
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, 200093, China.
| | - Jun Liao
- Wusong Sewage Treatment Plant of Shanghai Chengtou Sewage Treatment Co., Ltd., Shanghai, 201900, China
| | - Yinchuan Yang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Zhengming He
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Ke Dong
- Department of Life Science, Kyonggi University, Suwon, 16227, Republic of Korea
| | - Sang-Seob Lee
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| |
Collapse
|
10
|
Cheng GB, Bongcam‐Rudloff E, Schnürer A. Metagenomic Exploration Uncovers Several Novel 'Candidatus' Species Involved in Acetate Metabolism in High-Ammonia Thermophilic Biogas Processes. Microb Biotechnol 2025; 18:e70133. [PMID: 40126889 PMCID: PMC11932165 DOI: 10.1111/1751-7915.70133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2024] [Revised: 03/05/2025] [Accepted: 03/07/2025] [Indexed: 03/26/2025] Open
Abstract
Biogas reactors operating at elevated ammonia levels are commonly susceptible to process disturbances, further augmented at thermophilic temperatures. The major cause is assumed to be linked to inhibition followed by an imbalance between different functional microbial groups, centred around the last two steps of the anaerobic digestion, involving acetogens, syntrophic acetate oxidisers (SAOB) and methanogens. Acetogens are key contributors to reactor efficiency, acting as the crucial link between the hydrolysis and fermentation steps and the final methanogenesis step. Their major product is acetate, at high ammonia levels further converted by SAOB and hydrogenotrophic methanogens to biogas. Even though these functionally different processes are well recognised, less is known about the responsible organism at elevated temperature and ammonia conditions. The main aim of this study was to garner insights into the penultimate stages in three thermophilic reactors (52°C) operated under high ammonia levels (FAN 0.7-1.0 g/L; TAN 3.6-4.4 g/L). The primary objective was to identify potential acetogens and SAOBs. Metagenomic data from the three reactors were analysed for the reductive acetyl-CoA pathway (Wood-Ljungdahl Pathway) and glycine synthase reductase pathway. The results revealed a lack of true acetogens but uncovered three potential SAOB candidates that harbour the WLP, 'Candidatus Thermodarwinisyntropha acetovorans', 'Candidatus Thermosyntrophaceticus schinkii', 'Candidatus Thermotepidanaerobacter aceticum', and a potential lipid-degrader 'Candidatus Thermosyntrophomonas ammoiaca'.
Collapse
Affiliation(s)
- George B. Cheng
- Department of Molecular SciencesSwedish University of Agricultural SciencesUppsalaSweden
| | - Erik Bongcam‐Rudloff
- Department of Animal BiosciencesSwedish University of Agricultural SciencesUppsalaSweden
| | - Anna Schnürer
- Department of Molecular SciencesSwedish University of Agricultural SciencesUppsalaSweden
| |
Collapse
|
11
|
Ma R, Huang Z, Jiang Y, Zhao A, Yu G, Lin C, Zhu L, Zhang X, Li X, Wang C. Regulation of ethanol production from anaerobic fermentation of food waste using aromatic alcohol-based quorum-sensing molecules. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2025; 376:124382. [PMID: 39914213 DOI: 10.1016/j.jenvman.2025.124382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2024] [Revised: 12/23/2024] [Accepted: 01/29/2025] [Indexed: 02/27/2025]
Abstract
Quorum-sensing molecules (QSMs) are used to regulate microbial metabolites to effectively improve food waste anaerobic fermentation to produce high-value products of ethanol and lactic acid. In this study, low concentrations (25 and 50 μmol/L) of aromatic alcohol favored the synthesis of ethanol and lactic products. Among the aromatic alcohol QSMs, 50 μmol/L of tyrosol enhanced the yield of products. The correlations between substrate composition indicators confirmed that tyrosol was conducive to the anaerobic fermentation of food waste. The regulation mechanism of tyrosol, such as microbial diversity in anaerobic fermentation, was analyzed from the perspective of microbial ecology. The result revealed that tyrosol increased the microbial diversity in the system. Limosilactobacillus, Weissella, and Pediococcus were the dominant bacterial species in the early stages of fermentation, whereas Clostridiaceae and Bacillus were dominant in the later stages. Meanwhile, the main dominant fungal species were Saccharomyces, Aspergillus, and Pichia. The results of this study show that using QSMs, including tyrosol, to regulate the physiological characteristics of anaerobic fermentation microorganisms, promote the synthesis of cell metabolites, and regulate the diversity and succession of microbial communities is a feasible measure. This approach improves the resource utilization efficiency of anaerobic fermentation technology for food waste, which is significant for promoting sustainable development.
Collapse
Affiliation(s)
- Rong Ma
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China
| | - Zhuoshen Huang
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China
| | - Yi Jiang
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China
| | - Anqi Zhao
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China
| | - Guangwei Yu
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China
| | - Changquan Lin
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China
| | - Langping Zhu
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China
| | - Xiaozhi Zhang
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China
| | - Xiaotian Li
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China
| | - Chunming Wang
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China.
| |
Collapse
|
12
|
Galván-Arzola U, Valencia-Vázquez R, Gómez-González R, Alcalá-Rodríguez MM, Loredo-Medrano JÁ, García-Balandrán EE, Rivas-García P. Low-performance diagnosis of covered anaerobic lagoons as a waste management strategy in the intensive dairy industry. ENVIRONMENTAL TECHNOLOGY 2025; 46:772-784. [PMID: 38940278 DOI: 10.1080/09593330.2024.2368688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 05/26/2024] [Indexed: 06/29/2024]
Abstract
Covered anaerobic lagoons (CALs) are Latin America's main livestock waste treatment systems. Mexico has 680 CALs that present low biogas yields (0.05 m3 m-3 digester d-1) and low COD removal rates (< 60%). This work focused on diagnosing CAL´s low performance in dairy farms by determining and analyzing operational parameters. Seven CALs located in the main dairy basin of Mexico were analyzed. The sampling areas for each CAL were the supernatant, the active zone, settled sludge, and digester inlet and outlet. The variation of the process parameter values corroborated that CALs appeared stratified and not working as expected. The sludge zone, comprising 50-58% of total solids content and 1-15% of total CALs volume, showed an elemental compounds content suitable for organic fertilizer (340, 48, and 5 kg t-1 of C, N, and S, respectively). However, this zone contained, at least, 85% of the slowly hydrolysable material; the methanogenic potential was less than 87 mL CH4 g VS-1, and the C/N ratio ranged from 4.9 to 17, outside of the optimal range. The biogas produced did not exceed 60% of methane content and more than 3000 ppm of H2S. The sludge zone significantly influences the lagoon's dynamics since it is a nutrient sink. Furthermore, the lack of agitation is the leading cause for the low energy yield and the low removal of organic matter rate. This work provides valuable information to address the operational problems within the CALs improving our understanding that shall allow proposing reactivation alternatives.
Collapse
Affiliation(s)
- Uriel Galván-Arzola
- Facultad de Ciencias Químicas, Departamento de Ingeniería Química, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Mexico
| | - Roberto Valencia-Vázquez
- Maestría en Sistemas Ambientales, División de Estudios de Posgrado e Investigación, Tecnológico Nacional de México, Campus Durango, Durango, México
| | - Ricardo Gómez-González
- Facultad de Ciencias Químicas, Departamento de Ingeniería Química, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Mexico
| | - Mónica María Alcalá-Rodríguez
- Facultad de Ciencias Químicas, Departamento de Ingeniería Química, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Mexico
| | - José Ángel Loredo-Medrano
- Facultad de Ciencias Químicas, Departamento de Ingeniería Química, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Mexico
| | - Ever Efraín García-Balandrán
- Facultad de Ciencias Químicas, Departamento de Ingeniería Química, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Mexico
| | - Pasiano Rivas-García
- Facultad de Ciencias Químicas, Departamento de Ingeniería Química, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Mexico
| |
Collapse
|
13
|
Liu C, Cao Q, Luo X, Yan S, Sun Q, Zheng Y, Zhen G. In-depth exploration of microbial electrolysis cell coupled with anaerobic digestion (MEC-AD) for methanogenesis in treating protein wastewater at high organic loading rates. ENERGY CONVERSION AND MANAGEMENT 2025; 323:119152. [PMID: 39582929 PMCID: PMC11580529 DOI: 10.1016/j.enconman.2024.119152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2024]
Abstract
High concentrations of protein wastewater often reduce treatment efficiency due to ammonia inhibition and acid accumulation caused by its low carbon-to-nitrogen ratio (C/N) after digestion, as well as its complex structure. This study investigates the performance of a microbial electrolysis cell (MEC) driving a protein digestion system with gradually increasing organic loading rates (OLR) of bovine serum albumin, elucidating microbial changes and methanogenic metabolic pathways on bioelectrodes under high OLR "inhibited steady-state" (ISS) conditions. The results showed that the accumulation of ammonia nitrogen (AN) from protein hydrolysis under high OLR conditions disrupted microbial growth and caused cell death on the electrode surface, hindering the electron transfer rate. Toxic AN reduced protein hydrolysis, led to propionate accumulation, inhibiting the acetoclastic methanogenesis process and favoring the hydrogenotrophic pathway. As OLR increased from 6 to 11 gCOD/L, cumulative methane production increased significantly from 450.24 mL to 738.72 mL, while average methane yield and production rate decreased by 10.51% and 50.28%, from 375.20 mL/gCOD and 75.04 mL/(gCOD·d) to 335.78 mL/gCOD and 37.31 mL/(gCOD·d), respectively. Despite these declines, the system maintained an ISS. Moderate OLR increases can achieve an ISS, boosting protein waste treatment capacity, methane production, and net energy output (NEO), with an OLR of 6 gCOD/L being optimal for maximizing NEO per unit substrate. These findings provide theoretical insights into the methanogenesis pathway of high OLR proteins in MEC-AD systems and offer an effective method for treating high OLR protein wastewater in future practical applications.
Collapse
Affiliation(s)
- Changqing Liu
- College of Geographical Sciences, College of Carbon Neutral Future Technology, Fujian Normal University, Fuzhou 350007, China
- Fujian College and University Engineering Research Center for Municipal Solid Waste Resuscitation and Management, Fuzhou 350007, Fujian, China
| | - Qi Cao
- Fujian College and University Engineering Research Center for Municipal Solid Waste Resuscitation and Management, Fuzhou 350007, Fujian, China
- College of Environment and Resources, College of Carbon Neutral Modern Technology, Fujian Normal University; Pollution Control and Resource Recycling Laboratory of Fujian Province, Fuzhou 350007, China
| | - Xingguang Luo
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06510, United States
| | - Shenghan Yan
- Fujian College and University Engineering Research Center for Municipal Solid Waste Resuscitation and Management, Fuzhou 350007, Fujian, China
- College of Environment and Resources, College of Carbon Neutral Modern Technology, Fujian Normal University; Pollution Control and Resource Recycling Laboratory of Fujian Province, Fuzhou 350007, China
| | - Qiyuan Sun
- Fujian College and University Engineering Research Center for Municipal Solid Waste Resuscitation and Management, Fuzhou 350007, Fujian, China
- College of Environment and Resources, College of Carbon Neutral Modern Technology, Fujian Normal University; Pollution Control and Resource Recycling Laboratory of Fujian Province, Fuzhou 350007, China
| | - Yuyi Zheng
- Fujian College and University Engineering Research Center for Municipal Solid Waste Resuscitation and Management, Fuzhou 350007, Fujian, China
- College of Environment and Resources, College of Carbon Neutral Modern Technology, Fujian Normal University; Pollution Control and Resource Recycling Laboratory of Fujian Province, Fuzhou 350007, China
| | - Guangyin Zhen
- School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| |
Collapse
|
14
|
Dar RA, Tsui TH, Zhang L, Smoliński A, Tong YW, Mohamed Rasmey AH, Liu R. Recent achievements in magnetic-field-assisted anaerobic digestion for bioenergy production. RENEWABLE AND SUSTAINABLE ENERGY REVIEWS 2025; 207:114902. [DOI: 10.1016/j.rser.2024.114902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2025]
|
15
|
Mazaheri A, Doosti MR, Zoqi MJ. Enhancing synthetic vinasse treatment efficiency using an integrated UASB-Modified Bardenpho Process. BIORESOUR BIOPROCESS 2024; 11:109. [PMID: 39661282 PMCID: PMC11635072 DOI: 10.1186/s40643-024-00830-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Accepted: 10/20/2024] [Indexed: 12/12/2024] Open
Abstract
Vinasse poses considerable environmental problems due to its complex composition of organic matter, minerals, and toxic compounds. If discharged into the environment without treatment, it can cause adverse impacts on ecosystems. This research investigated the effectiveness of an integrated treatment system involving an upflow anaerobic sludge blanket (UASB) reactor and the modified Bardenpho process (MBP) for purifying synthetic vinasse. The study lasted for 167 days, during which the integrated UASB-MBP system processed untreated synthetic vinasse with organic loading rates (OLR) ranging from 1.6 to 12.5 kgCOD/m3 day. The UASB-MBP system impressively achieved a COD removal efficiency of 99.41%. Removal efficiencies of approximately 98.14, 99.91, and 99.63% were also achieved for total nitrogen (TN), total phosphorus (TP) and total ammonium (NH4+-N), respectively. The final discharge was 51.06 mg/L. The concentrations of NH4+-N and TN in the outflow of the settlement tank were 0.8-1.2 mg/L and 5.1-7.9 mg/L, respectively. Optimal performance was achieved when the HRT and nitrate recycle ratio were 15.5 h and 200%, respectively. The temperature was kept in the mesophilic range (33-35 °C) during the experiments. These results underscores the potential of the integrated UASB reactor and modified Bardenpho process to provide an effective and eco-friendly approach for concurrent removal of COD and nutrients from vinasse treatment, offering broad prospects for implementation in wastewater treatment.
Collapse
Affiliation(s)
- Afsaneh Mazaheri
- Department of Civil and Environmental Engineering, Faculty of Engineering, University of Birjand, P.O.Box: 97175/615, Birjand, Iran
| | - Mohamad Reza Doosti
- Department of Civil and Environmental Engineering, Faculty of Engineering, University of Birjand, P.O.Box: 97175/615, Birjand, Iran.
| | - Mohammad Javad Zoqi
- Department of Civil and Environmental Engineering, Faculty of Engineering, University of Birjand, P.O.Box: 97175/615, Birjand, Iran
| |
Collapse
|
16
|
Adams M. Ammonia-stressed anaerobic digestion: Sensitivity dynamics of key syntrophic interactions and methanogenic pathways-A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 371:123183. [PMID: 39492135 DOI: 10.1016/j.jenvman.2024.123183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2024] [Revised: 10/17/2024] [Accepted: 10/31/2024] [Indexed: 11/05/2024]
Abstract
The problematic anaerobic digestion (AD) of protein-rich substrates owing to their high ammonia content continues to hinder optimum methanation despite their high potential for offsetting greenhouse gas (GHG) emissions. This review focuses on the analyses of the sensitivity dynamics of key AD processes as well as the microbial interactions and exchanges that occur with them. Aside from the apparent increased risk associated with thermophilic ammonia-rich substrate AD, the marginally higher energy generation compared to mesophilic systems is not commensurate to the energy requirement. Moreover, while comparable FAN thresholds have been confirmed, TAN thresholds are susceptible to physical chemistry and so vary greatly. Profiling of the metabolic capability of front-end AD microbiome revealed Bacteroidetes, Firmicutes, and Synergistetes as some of the ammonia-resilient bacteria groups while Proteobacteria and Actinobacteria were the most fragile taxa. Besides the predominance of incomplete propionate oxidizing bacteria under ammonia stress conditions, syntrophic propionate oxidation (SPO) is usually shifted from the methylmalonyl CoA to the dismutation pathway. Furthermore, besides their different recoverability potentials, distinct methanogenic groups are differentially impacted by different ammonia species. Prevailing literature evidence suggests that conductive material assisted bioaugmentation with SAO-HM consortia, and in-situ H2 supplementation are the most effective for expediting electron transfer and relieving ammonia stress. These valuable insights should inform the design of targeted ammonia inhibition mitigation strategies.
Collapse
Affiliation(s)
- Mabruk Adams
- Civil Engineering, School of Engineering, College of Science and Engineering, University of Galway, Galway, H91 TK33, Ireland.
| |
Collapse
|
17
|
Dhanda A, Thulluru LP, Mishra S, Chowdhury S, Dubey BK, Ghangrekar MM. Integrated fuel cell system for sustainable wastewater treatment, ammonia recovery, and power production. ENVIRONMENTAL RESEARCH 2024; 262:119821. [PMID: 39173817 DOI: 10.1016/j.envres.2024.119821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2024] [Revised: 08/02/2024] [Accepted: 08/19/2024] [Indexed: 08/24/2024]
Abstract
The industrial production of synthetic fertilizers and the wide-scale combustion of fossil fuels have disrupted the global nitrogen cycle, necessitating a prudent shift towards sustainable nitrogen management. Traditional wastewater treatment methods primarily focus on nitrogen elimination rather than recovery in useable form, exacerbating resource depletion and environmental degradation. This review explores integrated technologies, including bio-electroconcentration cells (BEC), direct ammonia fuel cells (DAFC), solid oxide fuel cells (SOFC), and microbial fuel cells (MFC), for effective nutrient recovery in conjugation with energy recovery. Recovered nitrogen, primarily green ammonia, offers a carbon-free energy carrier for diverse applications, including applications in DAFC and SOFC. This review underscores the importance of synchronously retrieving ammonia from wastewater and efficiently diverting it for energy recovery using an integrated fuel cell approach. The key technical challenges and future perspectives are discussed, highlighting the potential of these integrated systems to advance sustainability and circular economy goals.
Collapse
Affiliation(s)
- Anil Dhanda
- Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
| | - Lakshmi Pathi Thulluru
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
| | - Srishti Mishra
- School of Water Resources, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
| | - Shamik Chowdhury
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
| | - B K Dubey
- Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India; School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India; School of Water Resources, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
| | - Makarand M Ghangrekar
- Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India; School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India; National Institute of Technology Puducherry, Karaikal, 609609, India.
| |
Collapse
|
18
|
Gyadi T, Bharti A, Basack S, Kumar P, Lucchi E. Influential factors in anaerobic digestion of rice-derived food waste and animal manure: A comprehensive review. BIORESOURCE TECHNOLOGY 2024; 413:131398. [PMID: 39236907 DOI: 10.1016/j.biortech.2024.131398] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2024] [Revised: 08/28/2024] [Accepted: 08/29/2024] [Indexed: 09/07/2024]
Abstract
Utilization of organic community wastes towards deriving sustainable renewable energy and adequate disposal of the residual has been an important topic of investigation. Anaerobic digestion and co-digestion of rice-derived food waste and animal manure for sustainable biogas generation is crucial from the view-point of community consumption. This paper presents an extensive review of the important and recent contributions in the related areas. The critical physico-chemical parameters involved in such digestion process are analyzed, including temperature, carbon-nitrogen ratio, microorganisms, pH, substrate characteristics, organic loading rate, hydraulic retention time, volatile fatty acids, ammonia, and light/heavy metal ions. Studies implied that the optimum yield of biogas production could be achieved only when the values of the parameters exist in the specific ranges. Few recent studies highlighted the use of emerging techniques including micro-aerobic system, additives, laser radiation, bio-electrochemical field, among others for efficiency enhancement of the digestion process and optimum yield. The entire study provided a set of important conclusions and future research directives are as well proposed.
Collapse
Affiliation(s)
- Tado Gyadi
- Department of Civil Engineering, North Eastern Regional Institute of Science and Technology, Nirjuli, Arunachal Pradesh, India
| | - Ajay Bharti
- Department of Civil Engineering, North Eastern Regional Institute of Science and Technology, Nirjuli, Arunachal Pradesh, India
| | - Sudip Basack
- Regent Education and Research Foundation, Affiliated: MAKA University of Technology, Kolkata 700 121, India; Department of Civil Engineering, Graphic Era Deemed to be University, Clement City, Dehradun 248002, India
| | - Pradeep Kumar
- Department of Botany, University of Lucknow, Uttar Pradesh, India
| | - Elena Lucchi
- Dipartimento di Ingegneria Civile e Architettura (DICAr), University of Pavia, Via Ferrata 3, Pavia 27100, Italy.
| |
Collapse
|
19
|
Li Y, Qiao W, Zhao G, Wu Z, Jiang P, Dong R. Pilot-scale study of enhanced thermophilic anaerobic digestion of food waste with the addition of trace elements. BIORESOURCE TECHNOLOGY 2024; 413:131454. [PMID: 39255946 DOI: 10.1016/j.biortech.2024.131454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2024] [Revised: 09/05/2024] [Accepted: 09/05/2024] [Indexed: 09/12/2024]
Abstract
Thermophilic anaerobic digestion (AD) offers many benefits for food waste treatment but is seldom adopted in industrial plants due to instability issue, particularly under higher loading conditions. This study thus conducted a 160-day continuous operation of a pilot-scale thermophilic AD system on-site. Results from the experiments showed that the system could operate under relatively lower loading but failed when the loading reached up to 5.69 kg·COD/(m3·d). Volatile fatty acids increased to 6000 mg/L at the corresponding hydraulic retention time of 15 days. Trace elements were then introduced, which restored higher process stability by reducing volatile fatty acids to 400 mg/L. The mass balance and materials decomposition resutls revealed the system's strong resilience. Methanoculleus (92.52 %) and Methanomassiliicoccus (6.55 %) were the dominant methanogens, a phenomenon rarely observed in similar thermophilic systems. This system may tolerate more stressful conditions, as the loading limits had not been reached with the addition of trace elements.
Collapse
Affiliation(s)
- Yang Li
- College of Engineering, China Agricultural University, Beijing 100083, China; Sanya Institute of China Agricultural University, Sanya, Hainan Province 572025, China.
| | - Wei Qiao
- College of Engineering, China Agricultural University, Beijing 100083, China; Sanya Institute of China Agricultural University, Sanya, Hainan Province 572025, China.
| | - Guoli Zhao
- Hainan Tropical Ocean University, Sanya, Hainan Province 572022, China.
| | - Zhiyue Wu
- College of Engineering, China Agricultural University, Beijing 100083, China.
| | - Pengwu Jiang
- College of Engineering, China Agricultural University, Beijing 100083, China; Sanya Institute of China Agricultural University, Sanya, Hainan Province 572025, China.
| | - Renjie Dong
- College of Engineering, China Agricultural University, Beijing 100083, China.
| |
Collapse
|
20
|
Durkin A, Vinestock T, Guo M. Towards planetary boundary sustainability of food processing wastewater, by resource recovery & emission reduction: A process system engineering perspective. CARBON CAPTURE SCIENCE & TECHNOLOGY 2024; 13:None. [PMID: 39759871 PMCID: PMC11698304 DOI: 10.1016/j.ccst.2024.100319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2024] [Revised: 09/08/2024] [Accepted: 09/26/2024] [Indexed: 01/07/2025]
Abstract
Meeting the needs of a growing population calls for a change from linear production systems that exacerbate the depletion of finite natural resources and the emission of environmental pollutants. These linear production systems have resulted in the human-driven perturbation of the Earth's natural biogeochemical cycles and the transgression of environmentally safe operating limits. One solution that can help alleviate the environmental issues associated both with resource stress and harmful emissions is resource recovery from waste. In this review, we address the recovery of resources from food and beverage processing wastewater (FPWW), which offers a synergistic solution to some of the environmental issues with traditional food production. Research on resource recovery from FPWW typically focuses on technologies to recover specific resources without considering integrative process systems to recover multiple resources while simultaneously satisfying regulations on final effluent quality. Process Systems Engineering (PSE) offers methodologies able to address this holistic process design problem, including modelling the trade-offs between competing objectives. Optimisation of FPWW treatment and resource recovery has significant scope to reduce the environmental impacts of food production systems. There is significant potential to recover carbon, nitrogen, and phosphorus resources while respecting effluent quality limits, even when the significant uncertainties inherent to wastewater systems are considered. This review article gives an overview of the environmental challenges we face, discussed within the framework of the planetary boundary, and highlights the impacts caused by the agri-food sector. This paper also presents a comprehensive review of the characteristics of FPWW and available technologies to recover carbon and nutrient resources from wastewater streams with a particular focus on bioprocesses. PSE research and modelling advances are discussed in this review. Based on this discussion, we conclude the article with future research directions.
Collapse
Affiliation(s)
- Alex Durkin
- Department of Chemical Engineering, Imperial College London, SW7 2AZ, UK
| | - Tom Vinestock
- Department of Engineering, King’s College London, WC2R 2LS, UK
| | - Miao Guo
- Department of Engineering, King’s College London, WC2R 2LS, UK
| |
Collapse
|
21
|
Akram J, Song C, El Mashad HM, Chen C, Zhang R, Liu G. Advances in microbial community, mechanisms and stimulation effects of direct interspecies electron transfer in anaerobic digestion. Biotechnol Adv 2024; 76:108398. [PMID: 38914350 DOI: 10.1016/j.biotechadv.2024.108398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 06/11/2024] [Accepted: 06/21/2024] [Indexed: 06/26/2024]
Abstract
Anaerobic digestion (AD) has been proven to be an effective green technology for producing biomethane while reducing environmental pollution. The interspecies electron transfer (IET) processes in AD are critical for acetogenesis and methanogenesis, and these IET processes are carried out via mediated interspecies electron transfer (MIET) and direct interspecies electron transfer (DIET). The latter has recently become a topic of significant interest, considering its potential to allow diffusion-free electron transfer during the AD process steps. To date, different multi-heme c-type cytochromes, electrically conductive pili (e-pili), and other relevant accessories during DIET between microorganisms of different natures have been reported. Additionally, several studies have been carried out on metagenomics and metatranscriptomics for better detection of DIET, the role of DIET's stimulation in alleviating stressed conditions, such as high organic loading rates (OLR) and low pH, and the stimulation mechanisms of DIET in mixed cultures and co-cultures by various conductive materials. Keeping in view this significant research progress, this study provides in-depth insights into the DIET-active microbial community, DIET mechanisms of different species, utilization of various approaches for stimulating DIET, characterization approaches for effectively detecting DIET, and potential future research directions. This study can help accelerate the field's research progress, enable a better understanding of DIET in complex microbial communities, and allow its utilization to alleviate various inhibitions in complex AD processes.
Collapse
Affiliation(s)
- Jehangir Akram
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Chao Song
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Hamed M El Mashad
- Department of Biological and Agricultural Engineering, University of California, Davis, CA 95616, United States; Agricultural Engineering Department, Mansoura University, Egypt
| | - Chang Chen
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Ruihong Zhang
- Department of Biological and Agricultural Engineering, University of California, Davis, CA 95616, United States.
| | - Guangqing Liu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| |
Collapse
|
22
|
De la Lama-Calvente D, Fernández-Rodríguez MJ, Borja R. Optimizing a biorefinery design for the valorization of Rugulopteryx okamurae by extracting bioactive compounds and enhancing methane production. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 370:122504. [PMID: 39293116 DOI: 10.1016/j.jenvman.2024.122504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 09/08/2024] [Accepted: 09/12/2024] [Indexed: 09/20/2024]
Abstract
The Mediterranean Sea has suffered recently from the unprecedent invasion of the alien macroalga Rugulopteryx okamurae due to global warming and climate change putting at risk the natural local ecosystem. Since 2015 this alga has colonized a great area on the western coast of the Mediterranean Sea and it has been also spotted in other areas such as the Azores Islands or the south of France. The arrival of alga tides into the coasts also provokes collateral environmental problems that need to be addressed. Seaweed-based biorefineries are considered a promising alternative within a circular economy model. This study aims to assess the potential of R. okamurae as raw material for the extraction of reducing sugars (RS) and total polyphenolic compounds (TPC) with antioxidant capacities, the subsequent production of methane from the extracted residue, and the final use of the anaerobic digestate as fertilizer. However, the presence of bioactive compounds greatly varies due to seasonality, location or even natural degradation. In order to provide some insights about these issues, two different batches were assessed: i.e. natural and ashore R. okamurae. As brown algae are characterised by a cell wall composed of crystalline cellulose and lignin, the biomasses studied were mechanically pretreated (dried at 100 °C and milled during 60 s) before the single and sequential extraction processes. Results showed that the extraction of the targeted compounds increased by 30-80 % when the biomasses were extracted sequentially. Similarly, the biochemical methane potential of the extracted solid residues increased as the RS and TPC content was reduced (120-150 NLCH4 kg-1VS), with no significant impact regarding the biomass origin (natural or ashore) or the extraction process order. An increase in the kinetic constant k (first-order model) of 150% and 75% was observed when the fresh biomass was extracted with water and ethanol, respectively, compared to the value obtained for the unextracted biomass. Finally, the physicochemical characteristics of the different anaerobic digestates generated were assessed for their potential use as biofertilizer. In this study, most of the digestate' liquid fractions (7 out of 10) comply with European regulations for organic fertilizers and could be used directly.
Collapse
Affiliation(s)
- David De la Lama-Calvente
- Spanish National Research Council (CSIC) - Instituto de La Grasa (IG), Department of Food Biotechnology, Campus Universidad Pablo de Olavide, Edificio 46. Ctra. de Utrera, Km 1, 41013 Seville, Spain.
| | | | - Rafael Borja
- Spanish National Research Council (CSIC) - Instituto de La Grasa (IG), Department of Food Biotechnology, Campus Universidad Pablo de Olavide, Edificio 46. Ctra. de Utrera, Km 1, 41013 Seville, Spain
| |
Collapse
|
23
|
Guo P, Yan Y, Ngo KN, Peot C, Bollmeyer M, Yi S, Baldwin M, Reid M, Goldfarb JL, Lancaster K, De Clippeleir H, Gu AZ. Improving nutrients ratio in class A biosolids through vivianite recovery: Insights from a wastewater resource recovery facility. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 946:173560. [PMID: 38823710 DOI: 10.1016/j.scitotenv.2024.173560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 05/20/2024] [Accepted: 05/25/2024] [Indexed: 06/03/2024]
Abstract
Class A biosolids from water resource recovery facilities (WRRFs) are increasingly used as sustainable alternatives to synthetic fertilizers. However, the high phosphorus to nitrogen ratio in biosolids leads to a potential accumulation of phosphorus after repeated land applications. Extracting vivianite, an FeP mineral, prior to the final dewatering step in the biosolids treatment can reduce the P content in the resulting class A biosolids and achieve a P:N ratio closer to the 1:2 of synthetic fertilizers. Using ICP-MS, IC, UV-Vis colorimetric methods, Mössbauer spectroscopy, and SEM-EDX, a full-scale characterization of vivianite at the Blue Plains Advanced Wastewater Treatment Plant (AWTTP) was surveyed throughout the biosolids treatment train. Results showed that the vivianite-bound phosphorus in primary sludge thickening, before pre-dewatering, after thermal hydrolysis, and after anaerobic digestion corresponded to 8 %, 52 %, 40 %, and 49 % of the total phosphorus in the treatment influent. Similarly, the vivianite-bound iron concentration also corresponded to 8 %, 52 %, 40 %, and 49 % of the total iron present (from FeCl3 dosing), because the molar ratio between total iron and total incoming phosphorus was 1.5:1, which is the same stoichiometry of vivianite. Based on current P:N levels in the Class A biosolids at Blue Plains, a vivianite recovery target of 40 % to ideally 70 % is required in locations with high vivianite content to reach a P:N ratio in the resulting class A biosolid that matches synthetic fertilizers of 1:1.3 to 1:2, respectively. A financial analysis on recycling iron from the recovered vivianite had estimated that 14-25 % of Blue Plain's annual FeCl3 demand can potentially be met. Additionally, model simulations with Visual Minteq were used to evaluate the pre-treatment options that maximize vivianite recovery at different solids treatment train locations.
Collapse
Affiliation(s)
- Peibo Guo
- School of Civil and Environmental Engineering, Cornell University, NY, USA; District of Columbia Water and Sewer Authority, 5000 Overlook Ave. SW, Washington, DC, USA.
| | - Yuan Yan
- School of Civil and Environmental Engineering, Cornell University, NY, USA.
| | - Khoa Nam Ngo
- District of Columbia Water and Sewer Authority, 5000 Overlook Ave. SW, Washington, DC, USA.
| | - Chris Peot
- District of Columbia Water and Sewer Authority, 5000 Overlook Ave. SW, Washington, DC, USA.
| | - Melissa Bollmeyer
- Department of Chemistry and Chemical Biology, Cornell University, NY, USA.
| | - Sang Yi
- School of Civil and Environmental Engineering, Cornell University, NY, USA.
| | - Mathew Baldwin
- School of Civil and Environmental Engineering, Cornell University, NY, USA.
| | - Matthew Reid
- School of Civil and Environmental Engineering, Cornell University, NY, USA.
| | - Jillian L Goldfarb
- Smith School of Chemical and Biomolecular Engineering, Cornell University, NY, USA.
| | - Kyle Lancaster
- Department of Chemistry and Chemical Biology, Cornell University, NY, USA.
| | - Haydée De Clippeleir
- District of Columbia Water and Sewer Authority, 5000 Overlook Ave. SW, Washington, DC, USA.
| | - April Z Gu
- School of Civil and Environmental Engineering, Cornell University, NY, USA.
| |
Collapse
|
24
|
Xiao Y, Mackey HR, Tang W, Lu H, Hao T. Disentangling microbial niche balance and intermediates' trade-offs for anaerobic digestion stability and regulation. WATER RESEARCH 2024; 261:122000. [PMID: 38944003 DOI: 10.1016/j.watres.2024.122000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 06/02/2024] [Accepted: 06/24/2024] [Indexed: 07/01/2024]
Abstract
Anaerobic digestion (AD) is a key technology for converting organic matters to methane-rich biogas. However, nutrient imbalance can destabilize the whole digestion. To realize stable operation of AD and improve its efficiency, this work considers a new strategy to control the intermediate concentrations of poor AD under nutrient stress. For this purpose, long-term digestion under different nutrient conditions was investigated. Results showed that the feedstock with a low C/N ratio (= 6) caused VFA accumulation (2072 ± 632 mg/L), leading to the inhibition of methane production. Employing a substrate with a higher C/N ratio (= 11) and/or adding NH4HCO3 (200 mg NH4+-N/Ladd) could alleviate the VFA inhibition, but excessive dosage of NH4HCO3 would induce ammonia inhibition. Through the established digestion balance between free ammonia nitrogen (FAN) between 0 and 25 mg/L, volatile fatty acid (VFA) 510-2100 mg/L, and alkalinity (ALK) 3300-7800 mg/L, an efficient methane yield of 150-250 mL/g VS was achieved and stable operation of AD under nutrient stress (low C/N ratio) was realized. Metabolic reconstruction between Euryarchaeota sp. MAG162, Methanosarcina mazei MAG53 and Mesotoga infera MAG119 highlighted that microbial niche balance was developed as a result of digestion balance, which is beneficial for stable operation of AD. These findings improved our understanding of the interaction mechanism between intermediates and microbial niches for stability control in AD.
Collapse
Affiliation(s)
- Yihang Xiao
- Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Macau, China
| | - Hamish R Mackey
- Department of Civil and Natural Resources Engineering, University of Canterbury, Christchurch, New Zealand
| | - Wentao Tang
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Hui Lu
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, China
| | - Tianwei Hao
- Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Macau, China.
| |
Collapse
|
25
|
Li C, Wang R, Yuan Z, Xie S, Wang Y, Zhang Y. Novel strategy for efficient energy recovery and pollutant control from sewage sludge and food waste treatment. WATER RESEARCH 2024; 261:122050. [PMID: 38996731 DOI: 10.1016/j.watres.2024.122050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 07/02/2024] [Accepted: 07/04/2024] [Indexed: 07/14/2024]
Abstract
Considering the high organic matter contents and pollutants in sewage sludge (SS) and food waste (FW), seeking green and effective technology for energy recovery and pollutant control is a big challenge. In this study, we proposed a integrated technology combing SS mass separation by hydrothermal pretreatment, methane production from co-digestion of hydrothermally treated sewage sludge (HSS) centrate and FW, and biochar production from co-pyrolysis of HSS cake and digestate with heavy metal immobilization for synergistic utilization of SS and FW. The results showed that the co-digestion of HSS centrate with FW reduced the NH4+-N concentration and promoted volatile fatty acids conversion, leading to a more robust anaerobic system for better methane generation. Among the co-pyrolysis of HSS cake and digestate, digestate addition improved biochar quality with heavy metals immobilization and toxicity reduction. Following the lab-scale investigation, the pilot-scale verification was successfully performed (except the co-digestion process). The mass and energy balance revealed that the produced methane could supply the whole energy consumption of the integrated system with 26.2 t biochar generation for treating 300 t SS and 120 t FW. This study presents a new strategy and technology validation for synergistic treatment of SS and FW with resource recovery and pollutants control.
Collapse
Affiliation(s)
- Chunxing Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China; Lishui Institute of Ecology and Environment, Nanjing University, Nanjing 211200, China
| | - Ruming Wang
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Zengwei Yuan
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China; Lishui Institute of Ecology and Environment, Nanjing University, Nanjing 211200, China.
| | - Shengyu Xie
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Yin Wang
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
| | - Yifeng Zhang
- Department of Environmental and Resource Engineering, Technical University of Denmark, Lyngby DK-2800, Denmark
| |
Collapse
|
26
|
Ahmed M, Fonseca Acosta N, Garcia Hernandez H, Dupont C. Comprehensive assessment of cow manure hydrothermal treatment products for land application and energy recovery. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 368:122168. [PMID: 39178792 DOI: 10.1016/j.jenvman.2024.122168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 07/20/2024] [Accepted: 08/07/2024] [Indexed: 08/26/2024]
Abstract
In this study, cow manure was hydrothermally treated in a 2-litre reactor for 1 h at temperatures between 100 °C and 260 °C. Both the raw manure and the solid and liquid products of the hydrothermal treatment were characterized to understand the fate of the inorganic elements and to assess the suitability of the products for land applications and energy recovery. Satisfactory elemental balances were obtained for the organic and most inorganic elements and indicated that most inorganic elements were incorporated into the solids with lower solubility, with the exception of potassium and sodium, which were mostly solubilized in the process water; calcium and chlorine were also solubilized to a lesser extent in the process water. Elemental composition and surface functional groups showed that hydrochar produced within the hydrothermal carbonization range (180-260 °C) seemed better suited for utilization as a soil amendment than raw cow manure. The potential for energy recovery lies in the anaerobic digestion of the process water, from which higher methane yields can be obtained than from raw cow manure. Lower temperatures in hydrothermal carbonization are considered a compromise for the safe land applications of cow manure, energy recovery from the process water, and enhanced dewaterability. These findings can help to eliminate bottlenecks in the upscaling of cow manure hydrothermal treatment and promote the circular bio-economy.
Collapse
Affiliation(s)
- Mostafa Ahmed
- Department of Water Supply, Sanitation, and Environmental Engineering, IHE Delft Institute for Water Education, Westvest 7, 2611AX, Delft, the Netherlands.
| | - Natthalie Fonseca Acosta
- Department of Water Supply, Sanitation, and Environmental Engineering, IHE Delft Institute for Water Education, Westvest 7, 2611AX, Delft, the Netherlands
| | - Hector Garcia Hernandez
- Department of Water Supply, Sanitation, and Environmental Engineering, IHE Delft Institute for Water Education, Westvest 7, 2611AX, Delft, the Netherlands; Department of Sanitary Engineering, Central-South Regional Technological Institute, Technological University of Uruguay (UTEC), Maciel s/n esq. Luis Morquio, Durazno, Uruguay
| | - Capucine Dupont
- Department of Water Supply, Sanitation, and Environmental Engineering, IHE Delft Institute for Water Education, Westvest 7, 2611AX, Delft, the Netherlands
| |
Collapse
|
27
|
Sarkar O, Rova U, Christakopoulos P, Matsakas L. Biogas potential of organosolv pretreated wheat straw as mono and co-substrate: substrate synergy and microbial dynamics. Sci Rep 2024; 14:18442. [PMID: 39117660 PMCID: PMC11310495 DOI: 10.1038/s41598-024-68904-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 07/29/2024] [Indexed: 08/10/2024] Open
Abstract
Anaerobic digestion (AD) technology can potentially address the gap between energy demand and supply playing a crucial role in the production of sustainable energy from utilization of biogenic waste materials as feedstock. The biogas production from anaerobic digestion is primarily influenced by the chemical compositions and biodegradability of the feedstock. Organosolv-steam explosion offers a constructive approach as a promising pretreatment method for the fractionation of lignocellulosic biomasses delivering high cellulose content.This study showed how synergetic co-digestion serves to overcome the challenges of mono-digestion's low efficiency. Particularly, the study evaluated the digestibility of organosolv-steam pretreated wheat straw (WSOSOL) in mono as well as co-digesting substrate with cheese whey (CW) and brewery spent grains (BSG). The highest methane yield was attained with co-digestion of WSOSOL + CW (338 mL/gVS) representing an enhanced biogas output of 1-1.15 times greater than its mono digestion. An ammonium production was favored under co-digestion strategy accounting for 921 mg/L from WSOSOL + BSG. Metagenomic study was conducted to determine the predominant bacteria and archaea, as well as its variations in their populations and their functional contributions during the AD process. The Firmicutes have been identified as playing a significant role in the hydrolysis process and the initial stages of AD. An enrichment of the most prevalent archaea genera enriched were Methanobacterium, Methanothrix, and Methanosarsina. Reactors digesting simpler substrate CW followed the acetoclastic, while digesting more complex substrates like BSG and WSOSOL followed the hydrogenotrophic pathway for biomethane production. To regulate the process for an enhanced AD process to maximize CH4, a comprehensive understanding of microbial communities is beneficial.
Collapse
Affiliation(s)
- Omprakash Sarkar
- Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental, and Natural Resources Engineering, Luleå University of Technology, 971‑87, Luleå, Sweden.
| | - Ulrika Rova
- Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental, and Natural Resources Engineering, Luleå University of Technology, 971‑87, Luleå, Sweden
| | - Paul Christakopoulos
- Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental, and Natural Resources Engineering, Luleå University of Technology, 971‑87, Luleå, Sweden
| | - Leonidas Matsakas
- Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental, and Natural Resources Engineering, Luleå University of Technology, 971‑87, Luleå, Sweden.
| |
Collapse
|
28
|
Pinela E, Schnürer A, Neubeck A, Moestedt J, Westerholm M. Impact of additives on syntrophic propionate and acetate enrichments under high-ammonia conditions. Appl Microbiol Biotechnol 2024; 108:433. [PMID: 39110235 PMCID: PMC11306274 DOI: 10.1007/s00253-024-13263-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 07/17/2024] [Accepted: 07/20/2024] [Indexed: 08/10/2024]
Abstract
High ammonia concentrations in anaerobic degradation systems cause volatile fatty acid accumulation and reduced methane yield, which often derive from restricted activity of syntrophic acid-oxidising bacteria and hydrogenotrophic methanogens. Inclusion of additives that facilitate the electron transfer or increase cell proximity of syntrophic species by flocculation can be a suitable strategy to counteract these problems, but its actual impact on syntrophic interactions has yet to be determined. In this study, microbial cultivation and molecular and microscopic analysis were performed to evaluate the impact of conductive (graphene, iron oxide) and non-conductive (zeolite) additives on the degradation rate of acetate and propionate to methane by highly enriched ammonia-tolerant syntrophic cultures derived from a biogas process. All additives had a low impact on the lag phase but resulted in a higher rate of acetate (except graphene) and propionate degradation. The syntrophic bacteria 'Candidatus Syntrophopropionicum ammoniitolerans', Syntrophaceticus schinkii and a novel hydrogenotrophic methanogen were found in higher relative abundance and higher gene copy numbers in flocculating communities than in planktonic communities in the cultures, indicating benefits to syntrophs of living in close proximity to their cooperating partner. Microscopy and element analysis showed precipitation of phosphates and biofilm formation in all batches except on the graphene batches, possibly enhancing the rate of acetate and propionate degradation. Overall, the concordance of responses observed in both acetate- and propionate-fed cultures highlight the suitability of the addition of iron oxide or zeolites to enhance acid conversion to methane in high-ammonia biogas processes. KEY POINTS: • All additives promoted acetate (except graphene) and propionate degradation. • A preference for floc formation by ammonia-tolerant syntrophs was revealed. • Microbes colonised the surfaces of iron oxide and zeolite, but not graphene.
Collapse
Affiliation(s)
- Eduardo Pinela
- Department of Molecular Sciences, Swedish University of Agricultural Sciences, 750 07, Uppsala, Sweden
| | - Anna Schnürer
- Department of Molecular Sciences, Swedish University of Agricultural Sciences, 750 07, Uppsala, Sweden
| | - Anna Neubeck
- Department of Earth Sciences, Uppsala University, 752 36, Uppsala, Sweden
| | - Jan Moestedt
- Department of Molecular Sciences, Swedish University of Agricultural Sciences, 750 07, Uppsala, Sweden
- Department of Biogas R & D, Tekniska Verken I Linköping AB (Publ.), Box 1500, 581 15, Linköping, Sweden
- Department of Thematic Studies - Environmental Change, Linköping University, 581 83, Linköping, Sweden
| | - Maria Westerholm
- Department of Molecular Sciences, Swedish University of Agricultural Sciences, 750 07, Uppsala, Sweden.
| |
Collapse
|
29
|
Robazza A, Neumann A. Energy recovery from syngas and pyrolysis wastewaters with anaerobic mixed cultures. BIORESOUR BIOPROCESS 2024; 11:76. [PMID: 39066992 PMCID: PMC11283448 DOI: 10.1186/s40643-024-00791-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Accepted: 07/15/2024] [Indexed: 07/30/2024] Open
Abstract
The anaerobic digestion of aqueous condensate from fast pyrolysis is a promising technology for enhancing carbon and energy recovery from waste. Syngas, another pyrolysis product, could be integrated as a co-substrate to improve process efficiency. However, limited knowledge exists on the co-fermentation of pyrolysis syngas and aqueous condensate by anaerobic cultures and the effects of substrate toxicity. This work investigates the ability of mesophilic and thermophilic anaerobic mixed cultures to co-ferment syngas and the aqueous condensate from either sewage sludge or polyethylene plastics pyrolysis in semi-batch bottle fermentations. It identifies inhibitory concentrations for carboxydotrophic and methanogenic reactions, examines specific component removal and assesses energy recovery potential. The results show successful co-fermentation of syngas and aqueous condensate components like phenols and N-heterocycles. However, the characteristics and load of the aqueous condensates affected process performance and product formation. The toxicity, likely resulting from the synergistic effect of multiple toxicants, depended on the PACs' composition. At 37 °C, concentrations of 15.6 gCOD/gVSS and 7.8 gCOD/gVSS of sewage sludge-derived aqueous condensate inhibited by 50% carboxydotrophic and methanogenic activity, respectively. At 55 °C, loads between 3.9 and 6.8 gCOD/gVSS inhibited by 50% both reactions. Polyethylene plastics condensate showed higher toxicity, with 2.8 gCOD/gVSS and 0.3 gCOD/gVSS at 37 °C decreasing carboxydotrophic and methanogenic rates by 50%. At 55 °C, 0.3 gCOD/gVSS inhibited by 50% CO uptake rates and methanogenesis. Increasing PAC loads reduced methane production and promoted short-chain carboxylates formation. The recalcitrant components in sewage sludge condensate hindered e-mol recovery, while plastics condensate showed high e-mol recoveries despite the stronger toxicity. Even with challenges posed by substrate toxicity and composition variations, the successful conversion of syngas and aqueous condensates highlights the potential of this technology in advancing carbon and energy recovery from anthropogenic waste streams.
Collapse
Affiliation(s)
- Alberto Robazza
- Institute of Process Engineering in Life Sciences 2: Electro Biotechnology, Karlsruhe Institute of Technology, KIT, 76131, Karlsruhe, Germany
| | - Anke Neumann
- Institute of Process Engineering in Life Sciences 2: Electro Biotechnology, Karlsruhe Institute of Technology, KIT, 76131, Karlsruhe, Germany.
| |
Collapse
|
30
|
Zbair M, Limousy L, Drané M, Richard C, Juge M, Aemig Q, Trably E, Escudié R, Peyrelasse C, Bennici S. Integration of Digestate-Derived Biochar into the Anaerobic Digestion Process through Circular Economic and Environmental Approaches-A Review. MATERIALS (BASEL, SWITZERLAND) 2024; 17:3527. [PMID: 39063819 PMCID: PMC11278828 DOI: 10.3390/ma17143527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Revised: 07/10/2024] [Accepted: 07/11/2024] [Indexed: 07/28/2024]
Abstract
The growing energy consumption and the need for a circular economy have driven considerable interest in the anaerobic digestion (AD) of organic waste, offering potential solutions through biogas and digestate production. AD processes not only have the capability to reduce greenhouse gas emissions but also contribute to the production of renewable methane. This comprehensive review aims to consolidate prior research on AD involving different feedstocks. The principles of AD are explored and discussed, including both chemical and biological pathways and the microorganisms involved at each stage. Additionally, key variables influencing system performance, such as temperature, pH, and C/N ratio are also discussed. Various pretreatment strategies applied to enhance biogas generation from organic waste in AD are also reviewed. Furthermore, this review examines the conversion of generated digestate into biochar through pyrolysis and its utilization to improve AD performance. The addition of biochar has demonstrated its efficacy in enhancing metabolic processes, microorganisms (activity and community), and buffering capacity, facilitating Direct Interspecies Electron Transfer (DIET), and boosting CH4 production. Biochar also exhibits the ability to capture undesirable components, including CO2, H2S, NH3, and siloxanes. The integration of digestate-derived biochar into the circular economy framework emerges as a vital role in closing the material flow loop. Additionally, the review discusses the environmental benefits derived from coupling AD with pyrolysis processes, drawing on life cycle assessment investigations. Techno-economic assessment (TEA) studies of the integrated processes are also discussed, with an acknowledgment of the need for further TEA to validate the viability of integrating the biochar industry. Furthermore, this survey examines the techno-economic and environmental impacts of biochar production itself and its potential application in AD for biogas generation, aiming to establish a more cost-effective and sustainable integrated system.
Collapse
Affiliation(s)
- Mohamed Zbair
- Institut de Science des Matériaux de Mulhouse (IS2M), Université de Haute-Alsace, CNRS, IS2M UMR 7361, 68100 Mulhouse, France; (M.Z.); (M.D.); (S.B.)
- Université de Strasbourg, 67000 Strasbourg, France
| | - Lionel Limousy
- Institut de Science des Matériaux de Mulhouse (IS2M), Université de Haute-Alsace, CNRS, IS2M UMR 7361, 68100 Mulhouse, France; (M.Z.); (M.D.); (S.B.)
- Université de Strasbourg, 67000 Strasbourg, France
| | - Méghane Drané
- Institut de Science des Matériaux de Mulhouse (IS2M), Université de Haute-Alsace, CNRS, IS2M UMR 7361, 68100 Mulhouse, France; (M.Z.); (M.D.); (S.B.)
- Université de Strasbourg, 67000 Strasbourg, France
| | - Charlotte Richard
- ENGIE, Lab CRIGEN, 4 Rue Joséphine Baker, 93240 Stains, France; (C.R.); (M.J.); (Q.A.)
| | - Marine Juge
- ENGIE, Lab CRIGEN, 4 Rue Joséphine Baker, 93240 Stains, France; (C.R.); (M.J.); (Q.A.)
| | - Quentin Aemig
- ENGIE, Lab CRIGEN, 4 Rue Joséphine Baker, 93240 Stains, France; (C.R.); (M.J.); (Q.A.)
| | - Eric Trably
- INRAE, University of Montpellier, LBE, 102 Av. des Etangs, 11100 Narbonne, France; (E.T.); (R.E.)
| | - Renaud Escudié
- INRAE, University of Montpellier, LBE, 102 Av. des Etangs, 11100 Narbonne, France; (E.T.); (R.E.)
| | | | - Simona Bennici
- Institut de Science des Matériaux de Mulhouse (IS2M), Université de Haute-Alsace, CNRS, IS2M UMR 7361, 68100 Mulhouse, France; (M.Z.); (M.D.); (S.B.)
- Université de Strasbourg, 67000 Strasbourg, France
| |
Collapse
|
31
|
Zhu Y, Yu D, Koornneef E, Parker WJ. Pilot-scale evaluation of cascade anaerobic digestion of mixed municipal wastewater treatment sludges. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2024; 96:e11072. [PMID: 38961619 DOI: 10.1002/wer.11072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 05/31/2024] [Accepted: 06/16/2024] [Indexed: 07/05/2024]
Abstract
This work assessed the performance of a pilot-scale cascade anaerobic digestion (AD) system when treating mixed municipal wastewater treatment sludges. The cascade system was compared with a conventional continuous stirred tank reactor (CSTR) digester (control) in terms of process performance, stability, and digestate quality. The results showed that the cascade system achieved higher volatile solids removal (VSR) efficiencies (28-48%) than that of the reference (25-41%) when operated at the same solids residence time (SRT) in the range of 11-15 days. When the SRT of the cascade system was reduced to 8 days the VSR (32-36%) was only slightly less than that of the reference digester that was operated at a 15-day SRT (39-43%). Specific hydrolysis rates in the first stage of the cascade system were 66-152% higher than those of the reference. Additionally, the cascade system exhibited relatively stable effluent concentrations of volatile fatty acids (VFAs: 100-120 mg/l), while the corresponding concentrations in the control effluent demonstrated greater fluctuations (100-160 mg/l). The cascade system's effluent pH and VFA/alkalinity ratios were consistently maintained within the optimal range. During a dynamic test when the feed total solids concentration was doubled, total VFA concentrations (85-120 mg/l) in the cascade system were noticeably less than those (100-170 mg/l) of the control, while the pH and VFA/alkalinity levels remained in a stable range. The cascade system achieved higher total solids (TS) content in the dewatered digestate (19.4-26.8%) than the control (17.4-22.1%), and E. coli log reductions (2.0-4.1 log MPN/g TS) were considerably higher (p < 0.05) than those in the control (1.3-2.9 log MPN/g TS). Overall, operating multiple CSTRs in cascade mode at typical SRTs and mixed sludge ratios enhanced the performance, stability digesters, and digestate quality of AD. PRACTITIONER POINTS: Enhanced digestion of mixed sludge digestion with cascade system. Increased hydrolysis rates in the cascade system compared to a reference CSTR. More stable conditions for methanogen growth at both steady and dynamic states. Improved dewaterability and E. coli reduction of digestate from the cascade system.
Collapse
Affiliation(s)
- Yancong Zhu
- Civil and Environmental Engineering, University of Waterloo, Waterloo, Ontario, Canada
| | - Daozhong Yu
- Civil and Environmental Engineering, University of Waterloo, Waterloo, Ontario, Canada
| | | | - Wayne J Parker
- Civil and Environmental Engineering, University of Waterloo, Waterloo, Ontario, Canada
| |
Collapse
|
32
|
Otto P, Puchol-Royo R, Ortega-Legarreta A, Tanner K, Tideman J, de Vries SJ, Pascual J, Porcar M, Latorre-Pérez A, Abendroth C. Multivariate comparison of taxonomic, chemical and operational data from 80 different full-scale anaerobic digester-related systems. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2024; 17:84. [PMID: 38902807 PMCID: PMC11191226 DOI: 10.1186/s13068-024-02525-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 05/30/2024] [Indexed: 06/22/2024]
Abstract
BACKGROUND The holistic characterization of different microbiomes in anaerobic digestion (AD) systems can contribute to a better understanding of these systems and provide starting points for bioengineering. The present study investigates the microbiome of 80 European full-scale AD systems. Operational, chemical and taxonomic data were thoroughly collected, analysed and correlated to identify the main drivers of AD processes. RESULTS The present study describes chemical and operational parameters for a broad spectrum of different AD systems. With this data, Spearman correlation and differential abundance analyses were applied to narrow down the role of the individual microorganisms detected. The authors succeeded in further limiting the number of microorganisms in the core microbiome for a broad range of AD systems. Based on 16S rRNA gene amplicon sequencing, MBA03, Proteiniphilum, a member of the family Dethiobacteraceae, the genus Caldicoprobacter and the methanogen Methanosarcina were the most prevalent and abundant organisms identified in all digesters analysed. High ratios for Methanoculleus are often described for agricultural co-digesters. Therefore, it is remarkable that Methanosarcina was surprisingly high in several digesters reaching ratios up to 47.2%. The various statistical analyses revealed that the microorganisms grouped according to different patterns. A purely taxonomic correlation enabled a distinction between an acetoclastic cluster and a hydrogenotrophic one. However, in the multivariate analysis with chemical parameters, the main clusters corresponded to hydrolytic and acidogenic microorganisms, with SAOB bacteria being particularly important in the second group. Including operational parameters resulted in digester-type specific grouping of microbes. Those with separate acidification stood out among the many reactor types due to their unexpected behaviour. Despite maximizing the organic loading rate in the hydrolytic pretreatments, these stages turned into extremely robust methane production units. CONCLUSIONS From 80 different AD systems, one of the most holistic data sets is provided. A very distinct formation of microbial clusters was discovered, depending on whether taxonomic, chemical or operational parameters were combined. The microorganisms in the individual clusters were strongly dependent on the respective reference parameters.
Collapse
Affiliation(s)
- Pascal Otto
- Institute of Waste Management and Circular Economy, Technische Universität Dresden, Pirna, Germany
| | - Roser Puchol-Royo
- Darwin Bioprospecting Excellence, S.L. Parc Cientific Universitat de Valencia, Paterna, Valencia, Spain
| | - Asier Ortega-Legarreta
- Darwin Bioprospecting Excellence, S.L. Parc Cientific Universitat de Valencia, Paterna, Valencia, Spain
| | - Kristie Tanner
- Darwin Bioprospecting Excellence, S.L. Parc Cientific Universitat de Valencia, Paterna, Valencia, Spain
| | | | | | - Javier Pascual
- Darwin Bioprospecting Excellence, S.L. Parc Cientific Universitat de Valencia, Paterna, Valencia, Spain
| | - Manuel Porcar
- Darwin Bioprospecting Excellence, S.L. Parc Cientific Universitat de Valencia, Paterna, Valencia, Spain
- Institute for Integrative Systems Biology I2SysBio, (University of Valencia - CSIC), Paterna, Spain
| | - Adriel Latorre-Pérez
- Darwin Bioprospecting Excellence, S.L. Parc Cientific Universitat de Valencia, Paterna, Valencia, Spain
| | - Christian Abendroth
- Chair of Circular Economy, Brandenburgische Technische Universität Cottbus-Senftenberg, Lehrgebäude 4A R2.25, Siemens-Halske-Ring 8, 03046, Cottbus, Germany.
| |
Collapse
|
33
|
Abdelrahman AM, Tebyani S, Talabazar FR, Tabar SA, Berenji NR, Aghdam AS, Koyuncu I, Kosar A, Guven H, Ersahin ME, Ghorbani M, Ozgun H. The flow pattern effects of hydrodynamic cavitation on waste activated sludge digestibility. CHEMOSPHERE 2024; 357:141949. [PMID: 38636918 DOI: 10.1016/j.chemosphere.2024.141949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 03/28/2024] [Accepted: 04/07/2024] [Indexed: 04/20/2024]
Abstract
The disintegration of raw sludge is of importance for enhancing biogas production and facilitates the degradation of substrates for microorganisms so that the efficiency of digestion can be increased. In this study, the effect of hydrodynamic cavitation (HC) as a pretreatment approach for waste activated sludge (WAS) was investigated at two upstream pressures (0.83 and 1.72 MPa) by using a milli-scale apparatus which makes sludge pass through an orifice with a restriction at the cross section of the flow. The HC probe made of polyether ether ketone (PEEK) material was tested using potassium iodide solution and it was made sure that cavitation occurred at the selected pressures. The analysis on chemical effects of HC bubbles collapse suggested that not only cavitation occurred at low upstream pressure, i.e., 0.83 MPa, but it also had high intensity at this pressure. The pretreatment results of HC implementation on WAS were also in agreement with the chemical characterization of HC collapse. Release of soluble organics and ammonium was observed in the treated samples, which proved the efficiency of the HC pretreatment. The methane production was improved during the digestion of the treated samples compared to the control one. The digestion of treated WAS sample at lower upstream pressure (0.83 MPa) resulted in higher methane production (128.4 mL CH4/g VS) compared to the treated sample at higher upstream pressure (119.1 mL CH4/g VS) and control sample (98.3 mL CH4/g VS). Thus, these results showed that the HC pretreatment for WAS led to a significant increase in methane production (up to 30.6%), which reveals the potential of HC in full-scale applications.
Collapse
Affiliation(s)
- Amr Mustafa Abdelrahman
- Istanbul Technical University, Civil Engineering Faculty, Environmental Engineering Department, Ayazaga Campus, Maslak, 34469, Istanbul, Turkey.
| | - Seyedreza Tebyani
- Faculty of Engineering and Natural Sciences, Sabanci University, 34956, Tuzla, Istanbul, Turkey; Sabanci University Nanotechnology Research and Application Center, 34956, Tuzla, Istanbul, Turkey
| | - Farzad Rokhsar Talabazar
- Faculty of Engineering and Natural Sciences, Sabanci University, 34956, Tuzla, Istanbul, Turkey; Sabanci University Nanotechnology Research and Application Center, 34956, Tuzla, Istanbul, Turkey
| | - Saba Aghdam Tabar
- Istanbul Technical University, Civil Engineering Faculty, Environmental Engineering Department, Ayazaga Campus, Maslak, 34469, Istanbul, Turkey
| | - Nastaran Rahimzadeh Berenji
- Istanbul Technical University, Civil Engineering Faculty, Environmental Engineering Department, Ayazaga Campus, Maslak, 34469, Istanbul, Turkey
| | - Araz Sheibani Aghdam
- Faculty of Engineering and Natural Sciences, Sabanci University, 34956, Tuzla, Istanbul, Turkey; Sabanci University Nanotechnology Research and Application Center, 34956, Tuzla, Istanbul, Turkey
| | - Ismail Koyuncu
- Istanbul Technical University, Civil Engineering Faculty, Environmental Engineering Department, Ayazaga Campus, Maslak, 34469, Istanbul, Turkey; National Research Center on Membrane Technologies, Istanbul Technical University, Ayazaga Campus, Maslak, 34469, Istanbul, Turkey
| | - Ali Kosar
- Faculty of Engineering and Natural Sciences, Sabanci University, 34956, Tuzla, Istanbul, Turkey; Sabanci University Nanotechnology Research and Application Center, 34956, Tuzla, Istanbul, Turkey; Center of Excellence for Functional Surfaces and Interfaces for Nano-Diagnostics (EFSUN), Sabanci University, Orhanli, 34956, Tuzla, Istanbul, Turkey
| | - Huseyin Guven
- Istanbul Technical University, Civil Engineering Faculty, Environmental Engineering Department, Ayazaga Campus, Maslak, 34469, Istanbul, Turkey
| | - Mustafa Evren Ersahin
- Istanbul Technical University, Civil Engineering Faculty, Environmental Engineering Department, Ayazaga Campus, Maslak, 34469, Istanbul, Turkey; National Research Center on Membrane Technologies, Istanbul Technical University, Ayazaga Campus, Maslak, 34469, Istanbul, Turkey
| | - Morteza Ghorbani
- Faculty of Engineering and Natural Sciences, Sabanci University, 34956, Tuzla, Istanbul, Turkey; Sabanci University Nanotechnology Research and Application Center, 34956, Tuzla, Istanbul, Turkey; Center of Excellence for Functional Surfaces and Interfaces for Nano-Diagnostics (EFSUN), Sabanci University, Orhanli, 34956, Tuzla, Istanbul, Turkey; School of Engineering, Computing and Mathematics, Oxford Brookes University, College Cl, Wheatley, Oxford, OX33 1HX, UK.
| | - Hale Ozgun
- Istanbul Technical University, Civil Engineering Faculty, Environmental Engineering Department, Ayazaga Campus, Maslak, 34469, Istanbul, Turkey; National Research Center on Membrane Technologies, Istanbul Technical University, Ayazaga Campus, Maslak, 34469, Istanbul, Turkey
| |
Collapse
|
34
|
Zhang D, Chu B, Yang Q, Zhang X, Fang Y, Liu G, Liang L, Guo Y, Yin Y, Cai Y, Jiang G. Degradation of organic mercury in high salt environments by a marine aerobic bacterium Alteromonas macleodii KD01. BIORESOURCE TECHNOLOGY 2024; 402:130831. [PMID: 38734262 DOI: 10.1016/j.biortech.2024.130831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 05/07/2024] [Accepted: 05/09/2024] [Indexed: 05/13/2024]
Abstract
Mercury (Hg), particularly organic mercury, poses a global concern due to its pronounced toxicity and bioaccumulation. Bioremediation of organic mercury in high-salt wastewater faces challenges due to the growth limitations imposed by elevated Cl- and Na+ concentrations on microorganisms. In this study, an isolated marine bacterium Alteromonas macleodii KD01 was demonstrated to degrade methylmercury (MeHg) efficiently in seawater and then was applied to degrade organic mercury (MeHg, ethylmercury, and thimerosal) in simulated high-salt wastewater. Results showed that A. macleodii KD01 can rapidly degrade organic mercury (within 20 min) even at high concentrations (>10 ng/mL), volatilizing a portion of Hg from the wastewater. Further analysis revealed an increased transcription of organomercury lyase (merB) with rising organic mercury concentrations during the exposure process, suggesting the involvement of mer operon (merA and merB). These findings highlight A. macleodii KD01 as a promising candidate for addressing organic mercury pollution in high-salt wastewater.
Collapse
Affiliation(s)
- Dingxi Zhang
- Laboratory of Environmental Nanotechnology and Health Effect, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Bowei Chu
- Laboratory of Environmental Nanotechnology and Health Effect, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qingqing Yang
- Laboratory of Environmental Nanotechnology and Health Effect, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaoyan Zhang
- Laboratory of Environmental Nanotechnology and Health Effect, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yingying Fang
- Laboratory of Environmental Nanotechnology and Health Effect, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guangliang Liu
- Institute of Environment and Health, Jianghan University, Wuhan 430056, China
| | - Lina Liang
- Beijing Zhongke PUYAN Science and Technology Co., Ltd, Beijing 100096, China
| | - Yingying Guo
- Laboratory of Environmental Nanotechnology and Health Effect, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Yongguang Yin
- Laboratory of Environmental Nanotechnology and Health Effect, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China; Institute of Environment, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China
| | - Yong Cai
- Laboratory of Environmental Nanotechnology and Health Effect, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Institute of Environment and Health, Jianghan University, Wuhan 430056, China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| |
Collapse
|
35
|
Ortiz Vanegas GO, Kim HW. Enhanced methane recovery from anaerobic membrane bioreactor coupled with cold plasma pretreatment for rapid hydrolysis and nitrogen removal. CHEMOSPHERE 2024; 357:141924. [PMID: 38599330 DOI: 10.1016/j.chemosphere.2024.141924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 04/04/2024] [Accepted: 04/05/2024] [Indexed: 04/12/2024]
Abstract
Research to increase biomethane recovery efficiency from thickened sewage sludge (TSWS) using sustainable anaerobic digestion (AD) in municipal wastewater treatment plants is ongoing. Pretreating substrates is known to increase organic biodegradation and biomethane conversion rates in AD. Cold plasma (CP), a recently adopted advanced oxidation processes (AOP) has emerged as an alternative to accelerate pretreatment times under different operation variables. This study assessed raw and CP-pretreated TSWS in an anaerobic sequencing batch reactor (ASBR) and anaerobic membrane bioreactor (AnMBR). The effects of incremental organic loading rates (OLR) and nitrogenous compounds concentration on enhanced CH4 bioconversion efficiency were evaluated. We found that the AnMBR outperformed the ASBR, with an overall chemical oxygen demand (COD) conversion rate of 67%, lower total nitrogen (T-N) accumulation (594 mg L-1), and an overall methane yield of 0.24 L CH4 g-1 COD. CP pretreatment improved TSWS AD, resulting in more efficient COD removal and methane recovery. This study suggests that CP technology is a promising pretreatment to improve AD when treating TSWS.
Collapse
Affiliation(s)
- Gerardo Oswaldo Ortiz Vanegas
- Department of Environment and Energy, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju 54896, Republic of Korea.
| | - Hyun-Woo Kim
- Department of Environment and Energy, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju 54896, Republic of Korea; Department of Environmental Engineering, Division of Civil, Environmental, Mineral Resources and Energy Engineering, Soil Environment Research Center, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju 54896, Republic of Korea.
| |
Collapse
|
36
|
Meng J, Shi L, Hu Y, Wang Z, Hu Z, Zhan X. Integration of anaerobic digestion and electrodialysis for methane yield promotion and in-situ ammonium recovery. BIORESOURCE TECHNOLOGY 2024; 402:130770. [PMID: 38697366 DOI: 10.1016/j.biortech.2024.130770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 04/13/2024] [Accepted: 04/29/2024] [Indexed: 05/05/2024]
Abstract
Ammonia inhibition is a common issue encountered in anaerobic digestion (AD) when treating nitrogen-rich substrates. This study proposed a novel approach, the electrodialysis-integrated AD (ADED) system, for in-situ recovery of ammonium (NH4+) while simultaneously enhancing AD performance. The ADED reactor was operated at two different NH4+-N concentrations (5,000 mg/L and 10,000 mg/L) to evaluate its performance against a conventional AD reactor. The results indicate that the ADED technology effectively reduced the NH4+-N concentration to below 2,000 mg/L, achieving this with a competitive energy consumption. Moreover, the ADED reactor demonstrated a 1.43-fold improvement in methane production when the influent NH4+-N was 5,000 mg/L, and it effectively prevented complete inhibition of methane production at the influent NH4+-N of 10,000 mg/L. The life cycle impact assessment reveals that ADED technology offers a more environmentally friendly alternative by recovering valuable fertilizer from the AD system.
Collapse
Affiliation(s)
- Jizhong Meng
- Civil Engineering, College of Science and Engineering, University of Galway, Ireland; Ryan Institute, University of Galway, Ireland; SFI Mari Research Centre, University of Galway, Ireland
| | - Lin Shi
- Environmental Science and Engineering, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, China
| | - Yuansheng Hu
- School of Civil Engineering, University College Dublin, Newstead, Belfield, Dublin 4, Ireland
| | - Zhongzhong Wang
- Institute for Integrative Systems Biology (I2SysBio), University of València-CSIC, Paterna, Valencia, Spain
| | - Zhenhu Hu
- Anhui Engineering Laboratory of Rural Water Environment and Resource, School of Civil Engineering, Hefei University of Technology, Hefei 230009, China
| | - Xinmin Zhan
- Civil Engineering, College of Science and Engineering, University of Galway, Ireland; Ryan Institute, University of Galway, Ireland; SFI Mari Research Centre, University of Galway, Ireland.
| |
Collapse
|
37
|
Zhang L, Yuan Y, Li C, Zhang Y, Sun H, Xu R, Liu Y. Biomineralization of phosphorus during anaerobic treatment of distillery wastewaters. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 925:171431. [PMID: 38442755 DOI: 10.1016/j.scitotenv.2024.171431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 02/29/2024] [Accepted: 02/29/2024] [Indexed: 03/07/2024]
Abstract
This study addresses the pressing environmental concerns associated with the rapidly growing distillery industry, which is a significant contributor to wastewater generation. By focusing on the treatment of distillery wastewater using anaerobic digestion, this research explores the potential to convert organic materials into biofuels (methane). Moreover, the study aims to recover both methane and phosphorus from distillery wastewater in a single anaerobic reactor, which represents a novel and unexplored approach. Laboratory-scale experiments were conducted using mesophilic and thermophilic upflow anaerobic sludge blanket reactors. A key aspect of the study involved the implementation of a unique strategy: the mixing of centrate and spent caustic wastewater streams. This approach was intended to enhance treatment performance, manipulate the microbial community structure, and thereby optimizing the overall treatment performance. The integration of the centrate and spent caustic streams yielded remarkable co-benefits, resulting in significant biomethane production and efficient phosphorus precipitation. The study demonstrated a phosphorus removal efficiency of ∼60 % throughout the 130-140 days operation period. The recovery of phosphorus via the reactor sludge offers exciting opportunities for its utilization as a fertilizer or as a raw material within the phosphorus refinery industry. The biomethane produced during the treatment exhibits significant energy potential, estimated at 0.5 GJ/(m3 distillery wastewater).
Collapse
Affiliation(s)
- Lei Zhang
- Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Canada; School of Civil & Environmental Engineering, Queensland University of Technology, Brisbane, QLD, Australia
| | - Yiyang Yuan
- Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Canada
| | - Chengyuan Li
- Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Canada
| | - Yingdi Zhang
- Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Canada
| | - Huijuan Sun
- Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Canada
| | - Rui Xu
- School of Metallurgy and Environment, Central South University, Changsha, China
| | - Yang Liu
- Department of Civil and Environmental Engineering, University of Alberta, Edmonton, Canada; School of Civil & Environmental Engineering, Queensland University of Technology, Brisbane, QLD, Australia.
| |
Collapse
|
38
|
He K, Liu Y, Tian L, He W, Cheng Q. Review in anaerobic digestion of food waste. Heliyon 2024; 10:e28200. [PMID: 38560199 PMCID: PMC10979283 DOI: 10.1016/j.heliyon.2024.e28200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 02/27/2024] [Accepted: 03/13/2024] [Indexed: 04/04/2024] Open
Abstract
Due to the special property of food waste (FW), anaerobic digestion of food waste is facing many challenges like foaming, acidification, ammonia nitrogen and (NH4+-N) inhibition which resulted in a low biogas yield. A better understanding on the problems exiting in the FW anaerobic digestion would enhance the bio-energy recovery and increase the stable operation. Meanwhile, to overcome the bottle necks, pretreatment, co-digestion and additives is proposed as well as the solutions to improve biogas yield in FW digestion system. At last, future research directions regarding FW anaerobic digestion were proposed.
Collapse
Affiliation(s)
- Kefang He
- School of Management, Wuhan Polytechnic University, China
| | - Ying Liu
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, China
| | - Longjin Tian
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, China
| | - Wanyou He
- School of Management, Wuhan Polytechnic University, China
| | - Qunpeng Cheng
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, China
| |
Collapse
|
39
|
Wissink M, Glodowska M, van der Kolk MR, Jetten MSM, Welte CU. Probing Denitrifying Anaerobic Methane Oxidation via Antimicrobial Intervention: Implications for Innovative Wastewater Management. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:6250-6257. [PMID: 38551595 PMCID: PMC11008094 DOI: 10.1021/acs.est.3c07197] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 03/08/2024] [Accepted: 03/11/2024] [Indexed: 04/10/2024]
Abstract
Methane emissions present a significant environmental challenge in both natural and engineered aquatic environments. Denitrifying anaerobic methane oxidation (N-DAMO) has the potential for application in wastewater treatment plants. However, our understanding of the N-DAMO process is primarily based on studies conducted on environmental samples or enrichment cultures using metagenomic approaches. To gain deeper insights into N-DAMO, we used antimicrobial compounds to study the function and physiology of 'Candidatus Methanoperedens nitroreducens' and 'Candidatus Methylomirabilis oxyfera' in N-DAMO enrichment cultures. We explored the effects of inhibitors and antibiotics and investigated the potential application of N-DAMO in wastewater contaminated with ammonium and heavy metals. Our results showed that 'Ca. M. nitroreducens' was susceptible to puromycin and 2-bromoethanesulfonate, while the novel methanogen inhibitor 3-nitrooxypropanol had no effect on N-DAMO. Furthermore, 'Ca. M. oxyfera' was shown to be susceptible to the particulate methane monooxygenase inhibitor 1,7-octadiyne and a bacteria-suppressing antibiotic cocktail. The N-DAMO activity was not affected by ammonium concentrations below 10 mM. Finally, the N-DAMO community appeared to be remarkably resistant to lead (Pb) but susceptible to nickel (Ni) and cadmium (Cd). This study provides insights into microbial functions in N-DAMO communities, facilitating further investigation of their application in methanogenic, nitrogen-polluted water systems.
Collapse
Affiliation(s)
- Martijn Wissink
- Department
of Microbiology, Radboud Institute for Biological and Environmental
Sciences, Radboud University, Heyendaalseweg 135, 6525AJ Nijmegen, The Netherlands
| | - Martyna Glodowska
- Department
of Microbiology, Radboud Institute for Biological and Environmental
Sciences, Radboud University, Heyendaalseweg 135, 6525AJ Nijmegen, The Netherlands
| | - Marnix R. van der Kolk
- Synthetic
Organic Chemistry, Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525AJ Nijmegen, The Netherlands
| | - Mike S. M. Jetten
- Department
of Microbiology, Radboud Institute for Biological and Environmental
Sciences, Radboud University, Heyendaalseweg 135, 6525AJ Nijmegen, The Netherlands
| | - Cornelia U. Welte
- Department
of Microbiology, Radboud Institute for Biological and Environmental
Sciences, Radboud University, Heyendaalseweg 135, 6525AJ Nijmegen, The Netherlands
| |
Collapse
|
40
|
Lo KV, Liao PH, Islam F, Cherian TT. Anaerobic digestion of liquid dairy manure pretreated by the microwave-enhanced advanced oxidation process. ENVIRONMENTAL TECHNOLOGY 2024; 45:2218-2227. [PMID: 36628621 DOI: 10.1080/09593330.2023.2167611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 01/05/2023] [Indexed: 06/17/2023]
Abstract
The microwave-enhanced advanced oxidation process (MW-AOP) was utilized for the treatment of liquid dairy manure, prior to anaerobic digestion (AD). A significant amount of soluble chemical oxygen demand (SCOD) was formed in the treated solution, but there was no or little increase in volatile fatty acid (VFA). In this study, up-flow anaerobic sludge blanket (UASB) reactors were used in both the conventional AD system and as the methane phase reactor in a two-phase anaerobic digestion (TPAD) system. Both AD systems were capable of operating at very short hydraulic retention times (HRTs) to as low as about 3 days, and very high methane production rates were achieved. However, much higher methane production was obtained in the TPAD system. The phase separation of the acidogenesis and the methanogenesis in the TPAD system not only increased methane production but also maintained reactor stability throughout the experimental period. Thus, the combination of MW-AOP treatment and TPAD appears to be an effective means of energy recovery from dairy manure.
Collapse
Affiliation(s)
- Kwang Victor Lo
- Department of Civil Engineering, University of British Columbia, Vancouver, B.C. Canada
| | - Ping Huang Liao
- Department of Civil Engineering, University of British Columbia, Vancouver, B.C. Canada
| | - Fahmida Islam
- Department of Civil Engineering, University of British Columbia, Vancouver, B.C. Canada
| | - Tinu Thomas Cherian
- Department of Civil Engineering, University of British Columbia, Vancouver, B.C. Canada
| |
Collapse
|
41
|
Ortiz Vanegas GO, Kim HW. Improved hydrolysis of sewage sludge by air-assisted non-thermal plasma for enhanced biomethane recovery. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:28814-28826. [PMID: 38561541 DOI: 10.1007/s11356-024-33006-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 03/16/2024] [Indexed: 04/04/2024]
Abstract
Conventional pretreatment technologies have been assessed to resolve the slow hydrolysis of sewage sludge, but high operating costs have prevented their wide use. This study investigated non-thermal plasma (NTP) technologies as an alternative to promote anaerobic digestion (AD). Various contact time (CT) and temperature (T) conditions were used to assess how NTP pretreatment improves the methane conversion of organics in sewage sludge. A multi-response surface model (RSM) using a central composite design (CCD) identified the optimal CT (4.6 h) and T (45 °C). This statistical optimization of NTP pretreatment led to an enhanced biochemical methane potential of 297 ± 46 mL CH4 g-1 COD by reducing operating cost as power consumption as low as 0.08 USD L-1. The result was comparable to those of other advanced oxidation processes (0.14 - 0.60 USD L-1) demonstrating that accelerated hydrolysis of sewage sludge using NTP pretreatment show potential for improving renewable energy recovery from sewage sludge.
Collapse
Affiliation(s)
- Gerardo Oswaldo Ortiz Vanegas
- Department of Environment and Energy, Jeonbuk National University, 567 Baekje-Daero, Deokjin-Gu, Jeonju, 54896, Republic of Korea
| | - Hyun-Woo Kim
- Department of Environment and Energy, Jeonbuk National University, 567 Baekje-Daero, Deokjin-Gu, Jeonju, 54896, Republic of Korea.
- Department of Environmental Engineering, Division of Civil, Environmental, Mineral Resources and Energy Engineering, Soil Environment Research Center, Jeonbuk National University, 567 Baekje-Daero, Deokjin-Gu, Jeonju, 54896, Republic of Korea.
| |
Collapse
|
42
|
Yatoo AM, Hamid B, Sheikh TA, Ali S, Bhat SA, Ramola S, Ali MN, Baba ZA, Kumar S. Global perspective of municipal solid waste and landfill leachate: generation, composition, eco-toxicity, and sustainable management strategies. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:23363-23392. [PMID: 38443532 DOI: 10.1007/s11356-024-32669-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 02/23/2024] [Indexed: 03/07/2024]
Abstract
Globally, more than 2 billion tonnes of municipal solid waste (MSW) are generated each year, with that amount anticipated to reach around 3.5 billion tonnes by 2050. On a worldwide scale, food and green waste contribute the major proportion of MSW, which accounts for 44% of global waste, followed by recycling waste (38%), which includes plastic, glass, cardboard, and paper, and 18% of other materials. Population growth, urbanization, and industrial expansion are the principal drivers of the ever-increasing production of MSW across the world. Among the different practices employed for the management of waste, landfill disposal has been the most popular and easiest method across the world. Waste management practices differ significantly depending on the income level. In high-income nations, only 2% of waste is dumped, whereas in low-income nations, approximately 93% of waste is burned or dumped. However, the unscientific disposal of waste in landfills causes the generation of gases, heat, and leachate and results in a variety of ecotoxicological problems, including global warming, water pollution, fire hazards, and health effects that are hazardous to both the environment and public health. Therefore, sustainable management of MSW and landfill leachate is critical, necessitating the use of more advanced techniques to lessen waste production and maximize recycling to assure environmental sustainability. The present review provides an updated overview of the global perspective of municipal waste generation, composition, landfill heat and leachate formation, and ecotoxicological effects, and also discusses integrated-waste management approaches for the sustainable management of municipal waste and landfill leachate.
Collapse
Affiliation(s)
- Ali Mohd Yatoo
- Centre of Research for Development, University of Kashmir, Srinagar, 190006, Jammu and Kashmir, India.
- Department of Environmental Sciences, University of Kashmir, Srinagar, 190006, Jammu and Kashmir, India.
| | - Basharat Hamid
- Department of Environmental Sciences, University of Kashmir, Srinagar, 190006, Jammu and Kashmir, India
| | - Tahir Ahmad Sheikh
- Faculty of Agriculture, SKUAST-Kashmir, Jammu and Kashmir, Wadura, 193201, India
| | - Shafat Ali
- Centre of Research for Development, University of Kashmir, Srinagar, 190006, Jammu and Kashmir, India
| | - Sartaj Ahmad Bhat
- River Basin Research Centre, Gifu University, 1-1 Yanagido, Gifu, Japan
- Waste Re-Processing Division, CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nagpur, 440020, India
| | - Sudipta Ramola
- Zhejiang University of Technology, Hangzhou, 310014, China
| | - Md Niamat Ali
- Centre of Research for Development, University of Kashmir, Srinagar, 190006, Jammu and Kashmir, India
| | - Zahoor Ahmad Baba
- Faculty of Agriculture, SKUAST-Kashmir, Jammu and Kashmir, Wadura, 193201, India
| | - Sunil Kumar
- Waste Re-Processing Division, CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nagpur, 440020, India
| |
Collapse
|
43
|
Wang N, Xiao M, Zhang S, Chen X, Shi J, Fu S, Shi J, Liu L. Evaluating the potential of different bioaugmented strains to enhance methane production during thermophilic anaerobic digestion of food waste. ENVIRONMENTAL RESEARCH 2024; 245:118031. [PMID: 38157970 DOI: 10.1016/j.envres.2023.118031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/21/2023] [Accepted: 12/22/2023] [Indexed: 01/03/2024]
Abstract
Bioaugmentation technology for improving the performance of thermophilic anaerobic digestion (TAD) of food waste (FW) treatment is gaining more attention. In this study, four thermophilic strains (Ureibacillus suwonensis E11, Clostridium thermopalmarium HK1, Bacillus thermoamylovorans Y25 and Caldibacillus thermoamylovorans QK5) were inoculated in the TAD of FW system, and the biochemical methane potential (BMP) batch study was conducted to assess the potential of different bioaugmented strains to enhance methane production. The results showed that the cumulative methane production in groups inoculated with E11, HK1, Y25 and QK5 improved by 2.05%, 14.54%, 19.79% and 9.17%, respectively, compared with the control group with no inoculation. Moreover, microbial community composition analysis indicated that the relative abundance of the main hydrolytic bacteria and/or methanogenic archaea was increased after bioaugmentation, and the four strains successfully became representative bacterial biomarkers in each group. The four strains enhanced methane production by strengthening starch, sucrose, galactose, pyruvate and methane metabolism functions. Further, the correlation networks demonstrated that the representative bacterial genera had positive correlations with the differential metabolic functions in each bioaugmentation group. This study provides new insights into the TAD of FW with bioaugmented strains.
Collapse
Affiliation(s)
- Na Wang
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Mengyao Xiao
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Siying Zhang
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaomiao Chen
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, China
| | - Jingjing Shi
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shanfei Fu
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China
| | - Jiping Shi
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, China.
| | - Li Liu
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, China; Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, Shanghai, 200241, China.
| |
Collapse
|
44
|
Silva CD, Peces M, Jaques A, Muñoz JJ, Dosta J, Astals S. Fractional calculus as a generalized kinetic model for biochemical methane potential tests. BIORESOURCE TECHNOLOGY 2024; 396:130412. [PMID: 38310977 DOI: 10.1016/j.biortech.2024.130412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 01/29/2024] [Accepted: 01/30/2024] [Indexed: 02/06/2024]
Abstract
This study presents a fractional calculus model as a generalized kinetic model for estimating the maximum methane yield and degradation kinetics in biomethane potential (BMP) assays, a key analytical method in anaerobic digestion research and application. The fractional model outperformed common first-order kinetic models by yielding superior data fitting and properly managing substrate heterogeneity. The fractional model showed robust performance in mono-digestion, co-digestion and pre-treatment BMP assays with or without presence of large tailing or sigmoidal patterns in the BMP curve. The main advantage of the fractional model over other models is its ability to capture the complexities of the methane production process without losing model accuracy. Assessment of the mathematical model revealed that for fractional orders greater than 0.8 the Mittag-Leffler sequence could be transformed into a more computationally efficient exponential function.
Collapse
Affiliation(s)
- C Da Silva
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, 08028 Barcelona, Spain; Department of Mathematics, Lab. De Càlcul Numèric (LaCàN), Universitat Politècnica de Catalunya, 08034 Barcelona, Spain.
| | - M Peces
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, 08028 Barcelona, Spain
| | - A Jaques
- Chemical and Environmental Engineering Department, Technical University Federico Santa María, 2390123 Valparaíso, Chile
| | - J J Muñoz
- Department of Mathematics, Lab. De Càlcul Numèric (LaCàN), Universitat Politècnica de Catalunya, 08034 Barcelona, Spain; Centre International de Mètodes Numèrics en Enginyeria (CIMNE), 08034 Barcelona, Spain; Institut de Matemàtiques de la UPC - BarcelonaTech, 08028 Barcelona, Spain
| | - J Dosta
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, 08028 Barcelona, Spain; Water Research Institute, University of Barcelona, Catalonia, 08001, Spain
| | - S Astals
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, 08028 Barcelona, Spain
| |
Collapse
|
45
|
Wang X, Campuzano S, Guenne A, Mazéas L, Chapleur O. Inhibition of anaerobic digestion by various ammonia sources resulted in subtle differences in metabolite dynamics. CHEMOSPHERE 2024; 351:141157. [PMID: 38218245 DOI: 10.1016/j.chemosphere.2024.141157] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 12/22/2023] [Accepted: 01/07/2024] [Indexed: 01/15/2024]
Abstract
The impact of ammonia on anaerobic digestion performance and microbial dynamics has been extensively studied, but the concurrent effect of anions brought by ammonium salt should not be neglected. This paper studied this effect using metabolomics and a time-course statistical framework. Metabolomics provides novel perspectives to study microbial processes and facilitates a more profound understanding at the metabolic level. The advanced statistical framework enables deciphering the complexity of large metabolomics data sets. More specifically, a series of lab-scale batch reactors were set up with different ammonia sources added. Samples of nine time points over the degradation were analyzed with liquid chromatography-mass spectrometry. A filtering procedure was applied to select the promising metabolomic peaks from 1262 peaks, followed by modeling their intensities across time. The metabolomic peaks with similar time profiles were clustered, evidencing the correlation of different biological processes. Differential analysis was performed to seek the differences in metabolite dynamics caused by different anions. Finally, tandem mass spectrometry and metabolite annotation provided further information on the molecular structure and possible metabolic pathways. For example, the consumption of 5-aminovaleric acid, a short-chain fatty acid obtained from l-lysine degradation, was slowed down by phosphates. Overall, by investigating the effect of anions on anaerobic digestion, our study demonstrated the effectiveness of metabolomics in providing detailed information in a set of samples from different experimental conditions. With the statistical framework, the approach enables capturing subtle differences in metabolite dynamics between samples while accounting for the differences caused by time variations.
Collapse
Affiliation(s)
- Xiaoqing Wang
- Université Paris-Saclay, INRAE, PRocédés biOtechnologiques au Service de l'Environnement, 92761, Antony, France
| | - Stephany Campuzano
- Université Paris-Saclay, INRAE, PRocédés biOtechnologiques au Service de l'Environnement, 92761, Antony, France
| | - Angéline Guenne
- Université Paris-Saclay, INRAE, PRocédés biOtechnologiques au Service de l'Environnement, 92761, Antony, France
| | - Laurent Mazéas
- Université Paris-Saclay, INRAE, PRocédés biOtechnologiques au Service de l'Environnement, 92761, Antony, France
| | - Olivier Chapleur
- Université Paris-Saclay, INRAE, PRocédés biOtechnologiques au Service de l'Environnement, 92761, Antony, France.
| |
Collapse
|
46
|
Noori MT, Park M, Min B. Integrated dark-fermentation-microbial electrosynthesis for efficient wastewater treatment and bioenergy recovery. BIORESOURCE TECHNOLOGY 2024; 395:130353. [PMID: 38272146 DOI: 10.1016/j.biortech.2024.130353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 01/04/2024] [Accepted: 01/18/2024] [Indexed: 01/27/2024]
Abstract
High ammonia concentration in wastewater can hinder methane production rate in anaerobic digestion (AD)-microbial electrosynthesis systems (ADMES). To address this issue, a dual-chamber reactor was fabricated using an anion exchange membrane (AEM) to separate the dark-fermentation (DF) and ADMES process, preventing ammonia migration from the DF chamber to the ADMES chamber. As a result, the DF-ADMES achieved a high methane yield based on chemical oxygen demand (COD) of 0.35 L CH4/gCOD compared to control operation AD (0.23 L CH4/gCOD) and ADMES (0.30 L CH4/gCOD). Additionally, hydrogen could be recovered from the DF chamber which improved the energy efficiency of the DF-ADMES reactor (91.7 %) as compared to control AD (53.4 %) and ADMES (71.9 %). Thus, a dual-chamber DF-ADMES with an AEM separator could be a feasible design for scalable treatment of high nitrogen-containing wastewater and high bioenergy recovery.
Collapse
Affiliation(s)
- Md Tabish Noori
- Department of Environmental Science and Engineering, Kyung Hee University - Global Campus, Yongin, Republic of Korea
| | - Minji Park
- Department of Environmental Science and Engineering, Kyung Hee University - Global Campus, Yongin, Republic of Korea
| | - Booki Min
- Department of Environmental Science and Engineering, Kyung Hee University - Global Campus, Yongin, Republic of Korea.
| |
Collapse
|
47
|
Ruiz-Bastidas RC, Ochoa-Durán C, Sanabria J, Cadavid-Rodríguez LS. Effect of Ecuadorian natural zeolite on the performance of anaerobic digestion of swine waste in semicontinuous regime. CHEMOSPHERE 2024; 352:141517. [PMID: 38387656 DOI: 10.1016/j.chemosphere.2024.141517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 01/29/2024] [Accepted: 02/20/2024] [Indexed: 02/24/2024]
Abstract
This study explores the potential of zeolite as an amendment to mitigate ammonium inhibition in the anaerobic digestion of swine waste. Two 50 L reactors, one with and one without zeolite amendment were operated at an OLR of 3.0 g VS L-1d-1 for 130 days, and fed with swine waste from a full-scale pig farm. Under these conditions, zeolite doses of 4 g L-1 allowed total ammonia nitrogen (TAN) concentrations to be kept below 1000 mgNH3-N L-1. The zeolite-amended reactor not only showed an average increase of 8% in methane production under stable conditions but also exhibited 34% reduction in H2S concentrations in the biogas, compared to the reactor without zeolite. The community of archaea originating from the inoculum was conserved in the reactor with zeolite amendment, particularly the acetoclastic methanogens of the genus Methanosaeta. On the other hand, in the reactor without zeolite addition, the microbial community went from being dominated by the acetoclastic methanogen Methanosaeta to having a high relative abundance of hydrogenotrophic methanogens. The zeolite addition also favoured the reactor stability, prevented foaming, and produced an enriched natural zeolite with N, P and K. However, additional studies on the potential of enriched zeolite as a fertilizer are required, which could make the use of zeolite in Anaerobic Digestion of swine waste not only energetically favourable but also economically feasible.
Collapse
Affiliation(s)
- Rosa Cecilia Ruiz-Bastidas
- Universidad Nacional de Colombia - Sede Medellín, Facultad de Ciencias, Cra. 65 #59a-110, Medellín, 050034, Colombia.
| | - Camilo Ochoa-Durán
- Universidad Nacional de Colombia - Sede Palmira, Facultad de Ingeniería y Administración, Departamento de Ingeniería, Cra. 32 No 12-00, Palmira, 763533, Colombia
| | - Janeth Sanabria
- Universidad del Valle, Microbiology and Environmental Biotechnology Laboratory, Cali, 760042, Colombia
| | - Luz Stella Cadavid-Rodríguez
- Universidad Nacional de Colombia - Sede Palmira, Facultad de Ingeniería y Administración, Departamento de Ingeniería, Cra. 32 No 12-00, Palmira, 763533, Colombia.
| |
Collapse
|
48
|
Fu Z, Zhao J, Guan D, Wang Y, Xie J, Zhang H, Sun Y, Zhu J, Guo L. A comprehensive review on the preparation of biochar from digestate sources and its application in environmental pollution remediation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:168822. [PMID: 38043821 DOI: 10.1016/j.scitotenv.2023.168822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 11/21/2023] [Accepted: 11/22/2023] [Indexed: 12/05/2023]
Abstract
The preparation of biochar from digestate is one of the effective ways to achieve the safe disposal and resource utilization of digestate. Nevertheless, up to now, a comprehensive review encompassing the factors influencing anaerobic digestate-derived biochar production and its applications is scarce in the literature. Therefore, to fill this gap, the present work first outlined the research hotspots of digestate in the last decade using bibliometric statistical analysis with the help of VOSviewer. Then, the characteristics of the different sources of digestate were summarized. Furthermore, the influencing factors of biochar preparation from digestate and the modification methods of digestate-derived biochar and associated mechanisms were analyzed. Notably, a comprehensive synthesis of anaerobic digestate-derived biochar applications is provided, encompassing enhanced anaerobic digestion, heavy metal remediation, aerobic composting, antibiotic/antibiotic resistance gene removal, and phosphorus recovery from digestate liquor. The economic and environmental impacts of digestate-derived biochar were also analyzed. Finally, the development prospect and challenges of using biochar from digestate to combat environmental pollution are foreseen. The aim is to not only address digestate management challenges at the source but also offer a novel path for the resourceful utilization of digestate.
Collapse
Affiliation(s)
- Zhou Fu
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266520, China
| | - Jianwei Zhao
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266520, China.
| | - Dezheng Guan
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266520, China
| | - Yuxin Wang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266520, China
| | - Jingliang Xie
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266520, China
| | - Huawei Zhang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266520, China
| | - Yingjie Sun
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266520, China.
| | - Jiangwei Zhu
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Liang Guo
- Key Lab of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China
| |
Collapse
|
49
|
Liu K, Huang S, Zhang L, Xiong Y, Wang X, Bao Y, Li D, Li J. Efficient production of single cell protein from biogas slurry using screened alkali-salt-tolerant Debaryomyces hansenii. BIORESOURCE TECHNOLOGY 2024; 393:130119. [PMID: 38040306 DOI: 10.1016/j.biortech.2023.130119] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 11/25/2023] [Accepted: 11/26/2023] [Indexed: 12/03/2023]
Abstract
Production of single cell protein (SCP) by recovering ammonia nitrogen from biogas slurry shows great potential against protein scarcity and unsustainable production of plant and animal proteins. Herein, a high-alkali-salt-tolerant yeast strain, Debaryomyces hansenii JL8-0, was isolated and demonstrated for high-efficient SCP production. This strain grew optimally at pH 8.50 and 2500 mg/L NH4+-N, and it could efficiently utilize acetate as the additional carbon source. Under optimal conditions, SCP biomass of 32.21 g/L and productivity of 0.32 g/L·h-1 were obtained in fed-batch fermentation. Remarkably, nearly complete (97.40 %) ammonia nitrogen from biogas slurry was recovered, probably due to its high affinity for NH4+-N. Altogether, this strain showed advantages in terms of cell biomass titer, productivity, and yield. A cultivation strategy was proposed by co-culturing D. hansenii with other compatible yeast strains to achieve high-efficient SCP production from biogas slurry, which could be a promising alternative technology for biogas slurry treatment.
Collapse
Affiliation(s)
- Keyun Liu
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Siyuan Huang
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lu Zhang
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Yingjie Xiong
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Xiaoyan Wang
- Chemical Engineering College, Inner Mongolia University of Technology, Hohhot 010050, China
| | - Yali Bao
- Chemical Engineering College, Inner Mongolia University of Technology, Hohhot 010050, China
| | - Dong Li
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiabao Li
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| |
Collapse
|
50
|
Makian M, Im S, Mostafa A, Prakash O, Kim J, Park C, Kim DH. Continuous production of high-concentrated ammonia broth through fermentation. BIORESOURCE TECHNOLOGY 2024; 394:130217. [PMID: 38104664 DOI: 10.1016/j.biortech.2023.130217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/14/2023] [Accepted: 12/14/2023] [Indexed: 12/19/2023]
Abstract
Being considered as a valuable resource and energy carrier, extensive research is going on to efficiently extract ammonia (NH3) from anaerobic digestate. However, due to the well-known NH3 inhibition on methanogens, the total NH3 nitrogen (TAN) concentration is typically limited to 1-4 g N/L in digestate, making the NH3 extraction process energy-consumptive. Here, NH3 fermentation, specifically targeting augmented NH3 production through biological reaction, was performed in a continuous mode. With the increase of gelatin input (10 to 150 g COD/L), NH3 concentration and volumetric productivity gradually increased, reaching 12.0 g TAN-N/L and 36.0 g NH3-N/L/d, which were the highest values ever reported. The stepwise increase in NH3 exposure prompted a shift in microbial dominance towards Hathewaya (from 1 % to 68 %), a critical factor for having high NH3 tolerance. Finally, NH3 stripping results suggested that highly concentrated broth could reduce the specific energy consumption for NH3 extraction to 1/3.
Collapse
Affiliation(s)
- Masoud Makian
- Department of Smart-city Engineering, Inha University, 100 Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea
| | - Seongwon Im
- Department of Environmental Research, Korea Institute of Civil Engineering and Building Technology, Goyang-si, 10223, Republic of Korea
| | - Alsayed Mostafa
- Civil and Environmental Engineering, University of Alberta, 116 Street NW, Edmonton, AB T6G 1H9, Canada
| | - Om Prakash
- Department of Smart-city Engineering, Inha University, 100 Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea
| | - Jimin Kim
- Department of Smart-city Engineering, Inha University, 100 Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea
| | - Cheol Park
- Korea Conformity Laboratories (KCL), 199, Gasan digital 1-ro, Geumcheon-gu, Seoul, 08503, Republic of Korea
| | - Dong-Hoon Kim
- Department of Smart-city Engineering, Inha University, 100 Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea.
| |
Collapse
|