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Kaur I, Kumar Gaur V, Rishi S, Anand V, Kumar Mishra S, Gaur R, Patel A, Srivastava S, Verma PC, Kumar Srivastava P. Deciphering the kinetics and pathway of lindane biodegradation by novel soil ascomycete fungi for its implication in bioremediation. BIORESOURCE TECHNOLOGY 2023; 387:129581. [PMID: 37517709 DOI: 10.1016/j.biortech.2023.129581] [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: 06/06/2023] [Revised: 07/18/2023] [Accepted: 07/25/2023] [Indexed: 08/01/2023]
Abstract
Lindane, an organochlorine pesticide, negatively affects living beings and the ecosystem. In this study, the potential of 9 Ascomycetes fungi, isolated from an hexachlorocyclohexane dumpsite soil, was tested for biodegradation of lindane. The strain Pleurostoma richardsiae (FN5) showed lindane biodegradation rate constant (K value) of 0.144 d-1 and a half-life of 4.8d. The formation of intermediate metabolites upon lindane degradation including γ-pentachlorocyclohexene, 2,4-dichlorophenol, phenol, benzene, 1,3- cyclohexadiene, and benzoic acid detected by GC-MS and the potential pathway adopted by the novel fungal strain FN5 for lindane biodegradation has been elucidated. The study of gene profiles with reference to linA and linB in strain FN5 confirmed the same protein family with the reported heterologs from other fungal strains in the NCBI database. This study for the first time provides a thorough understanding of lindane biodegradation by a novel soil-borne Ascomycota fungal strain for its possible application in field-scale bioremediation.
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Affiliation(s)
- Ispreet Kaur
- Environmental Technologies Division, CSIR-National Botanical Research Institute, Lucknow, India; Department of Microbiology, Dr. Rammanohar Lohia Avadh University, Ayodhya, India
| | - Vivek Kumar Gaur
- School of Energy and Chemical Engineering, Ulsan National Institute for Science and Technology, Republic of Korea
| | - Saloni Rishi
- Environmental Technologies Division, CSIR-National Botanical Research Institute, Lucknow, India
| | - Vandana Anand
- Environmental Technologies Division, CSIR-National Botanical Research Institute, Lucknow, India
| | - Shashank Kumar Mishra
- Environmental Technologies Division, CSIR-National Botanical Research Institute, Lucknow, India
| | - Rajeev Gaur
- Department of Microbiology, Dr. Rammanohar Lohia Avadh University, Ayodhya, India
| | - Anju Patel
- Environmental Technologies Division, CSIR-National Botanical Research Institute, Lucknow, India
| | - Suchi Srivastava
- Environmental Technologies Division, CSIR-National Botanical Research Institute, Lucknow, India
| | - Praveen C Verma
- Environmental Technologies Division, CSIR-National Botanical Research Institute, Lucknow, India
| | - Pankaj Kumar Srivastava
- Environmental Technologies Division, CSIR-National Botanical Research Institute, Lucknow, India.
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2
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Zhu Y, Xu Y, Xu J, Meidl P, He Y. Contrasting response strategies of microbial functional traits to polycyclic aromatic hydrocarbons contamination under aerobic and anaerobic conditions. JOURNAL OF HAZARDOUS MATERIALS 2023; 454:131548. [PMID: 37141779 DOI: 10.1016/j.jhazmat.2023.131548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 04/06/2023] [Accepted: 04/29/2023] [Indexed: 05/06/2023]
Abstract
PAHs (Polycyclic aromatic hydrocarbons) are widely distributed in soil ecosystems, but our knowledge regarding the impacts of PAHs effects on soil microbial functional traits is limited. In this study, we evaluated the response and regulating strategies of microbial functional traits that are associated with the typical C, N, P, S cycling processes in a pristine soil under aerobic and anaerobic conditions after the addition of PAHs. Results revealed that indigenous microorganisms had strong degradation potential and adaptability to PAHs especially under aerobic conditions, while anaerobic conditions favored the degradation of high molecular weight PAHs. PAHs exhibited contrasting effects on soil microbial functional traits under different aeration conditions. It would probably change microbial carbon source utilization preference, stimulate inorganic P solubilization and strengthen the functional interactions between soil microorganisms under aerobic conditions, while might cause the increase of H2S and CH4 emissions under anaerobic conditions. This research provides an effective theoretical support for the ecological risk assessment of soil PAHs pollution.
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Affiliation(s)
- Yanjie Zhu
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yan Xu
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, Hangzhou 310058, China; College of Environmental Sciences and Engineering, Qingdao University, Qingdao 266071, China.
| | - Jianming Xu
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Peter Meidl
- Institute of Biology, Freie Universität Berlin, Berlin, Germany; Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, Germany
| | - Yan He
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, Hangzhou 310058, China.
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3
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Hu W, Wang X, Wang X, Xu Y, Li R, Zhao L, Ren W, Teng Y. Enhancement of nitrogen fixation and diazotrophs by long-term polychlorinated biphenyl contamination in paddy soil. JOURNAL OF HAZARDOUS MATERIALS 2023; 446:130697. [PMID: 36599277 DOI: 10.1016/j.jhazmat.2022.130697] [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: 09/15/2022] [Revised: 12/07/2022] [Accepted: 12/28/2022] [Indexed: 06/17/2023]
Abstract
Biological nitrogen fixation (BNF) driven by diazotrophs is a major means of increasing available nitrogen (N) in paddy soil, in addition to anthropogenic fertilization. However, the influence of long-term polychlorinated biphenyl (PCB) contamination on the diazotrophic community and nitrogen fixation in paddy soil is poorly understood. In this study, samples were collected from paddy soil subjected to > 30 years of PCB contamination, and the soil diazotrophic community and N2 fixation rate were evaluated by Illumina MiSeq sequencing and acetylene reduction assays, respectively. The results indicated that high PCB contamination increased diazotrophic abundance and the N2 fixation rate, and altered diazotrophic community structure in the paddy soil. The random forest model demonstrated that the β-diversity of the diazotrophic community was the most significant predictor of the N2 fixation rate. Structure equation modeling identified a specialized keystone diazotrophic ecological cluster, predominated by Bradyrhizobium, Desulfomonile, and Cyanobacteria, as the key driver of N2 fixation. Overall, our findings indicated that long-term PCB contamination enhanced the N2 fixation rate by altering diazotrophic community abundance and structure, which may deepen our understanding of the ecological function of diazotrophs in organic-contaminated soil.
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Affiliation(s)
- Wenbo Hu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaomi Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Xia Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Yongfeng Xu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Ran Li
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Ling Zhao
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Wenjie Ren
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Ying Teng
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.
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4
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Long T, Wan H, Zhang J, Wu J, Liang JX, Zhu C. The High-Effective Catalytic Degradation of Benzo[a]pyrene by Mn-Corrolazine Regulated by Oriented External Electric Field: Insight From DFT Study. Front Chem 2022; 10:884105. [PMID: 35720998 PMCID: PMC9201028 DOI: 10.3389/fchem.2022.884105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 05/16/2022] [Indexed: 11/13/2022] Open
Abstract
The degradation of BaP into hydroxybenzo[a]pyrene by Mn-corrolazine and its regulation by an oriented external electronic field (OEEF) were systematically studied using first-principle calculations. Extensive density function calculations showed that the degradation of BaP into hydroxybenzo[a]pyrene by Mn-corrolazine occurs via a three-step process in the absence of OEEF, in which a more toxic and stable epoxide intermediate is generated. However, upon application of OEEF along the intrinsic Mn-O reaction axis, the degradation of BaP into hydroxybenzo[a]pyrene is greatly simplified. The negative charge on the terminal O atom of Mn-OO corrolazine increases with an increase in the OEEF intensity. As the intensity of the OEEF increases over 0.004 a.u., the negatively charged terminal O atom has the ability to directly abstract the positively charged H atom of BaP and the degradation of BaP into hydroxybenzo[a]pyrene can be completed via a one-step process, avoiding the production of more toxic epoxide intermediates.
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Affiliation(s)
- Tairen Long
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, China
| | - Haiyan Wan
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, China
| | | | - Jie Wu
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, China
| | - Jin-Xia Liang
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, China
- *Correspondence: Jin-Xia Liang, ; Chun Zhu,
| | - Chun Zhu
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, China
- *Correspondence: Jin-Xia Liang, ; Chun Zhu,
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Ali M, Song X, Ding D, Wang Q, Zhang Z, Tang Z. Bioremediation of PAHs and heavy metals co-contaminated soils: Challenges and enhancement strategies. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 295:118686. [PMID: 34920044 DOI: 10.1016/j.envpol.2021.118686] [Citation(s) in RCA: 57] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 11/20/2021] [Accepted: 12/12/2021] [Indexed: 06/14/2023]
Abstract
Systemic studies on the bioremediation of co-contaminated PAHs and heavy metals are lacking, and this paper provides an in-depth review on the topic. The released sources and transport of co-contaminated PAHs and heavy metals, including their co-occurrence through formation of cation-π interactions and their adsorption in soil are examined. Moreover, it is investigated that co-contamination of PAHs and heavy metals can drive a synergistic positive influence on bioremediation through enhanced secretion of extracellular polymeric substances (EPSs), production of biosynthetic genes, organic acid and enzymatic proliferation. However, PAHs molecular structure, PAHs-heavy metals bioavailability and their interactive cytotoxic effects on microorganisms can exert a challenging influence on the bioremediation under co-contaminated conditions. The fluctuations in bioavailability for microorganisms are associated with soil properties, chemical coordinative interactions, and biological activities under the co-contaminated PAHs-heavy metals conditions. The interactive cytotoxicity caused by the emergence of co-contaminants includes microbial cell disruption, denaturation of DNA and protein structure, and deregulation of antioxidant biological molecules. Finally, this paper presents the emerging strategies to overcome the bioavailability problems and recommends the use of biostimulation and bioaugmentation along with the microbial immobilization for enhanced bioremediation of PAHs-heavy metals co-contaminated sites. Better knowledge of the bioremediation potential is imperative to improve the use of these approaches for the sustainable and cost-effective remediation of PAHs and heavy metals co-contamination in the near future.
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Affiliation(s)
- Mukhtiar Ali
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xin Song
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Da Ding
- Nanjing Institute of Environmental Science, Ministry of Ecology and Environment of the People's Republic of China, Nanjing, 210042, China
| | - Qing Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Zhuanxia Zhang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhiwen Tang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China
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6
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Xu T, Liu T, Jiang D, Yuan Z, Jia X. Attainment and characterization of a microbial consortium that efficiently degrades biphenyl and related substances. Biochem Eng J 2021. [DOI: 10.1016/j.bej.2021.108073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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7
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Ghorbannezhad H, Moghimi H, Dastgheib SMM. Evaluation of pyrene and tetracosane degradation by mixed-cultures of fungi and bacteria. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:126202. [PMID: 34492965 DOI: 10.1016/j.jhazmat.2021.126202] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 05/19/2021] [Accepted: 05/19/2021] [Indexed: 06/13/2023]
Abstract
The present study was conducted to compare the efficiency of different microbial mixed-cultures consists of fifteen oil-degrading microorganisms with different combinations. The investigation was targeted toward the removal of 500 mg/l pyrene and 1% w/v tetracosane, as single compounds or mixture. Sequential Fungal-Bacterial Mixed-Culture (SMC) in which bacteria added one week after fungi, recorded 60.76% and 73.48% degradation for pyrene and tetracosane; about 10% more than Traditional Fungal-Bacterial Mixed-Culture (TMC). Co-degradation of pollutants resulted in 24.65% more pyrene degradation and 6.41% less tetracosane degradation. The non-specified external enzymes of fungi are responsible for initial attacks on hydrocarbons. Delayed addition of bacteria and co-contamination would result in higher growth of fungi which increases pyrene degradation. The addition of Rhamnolipid potently increased the extent of pyrene and tetracosane degradation by approximately 16% and 23% and showed twice better performance than Tween-80 in 20 times less concentration. The results indicated the importance of having sufficient knowledge on the characteristics of the contaminated site and its contaminants as well as oil-degrading species. Gaining this knowledge and using it properly, such as the later addition of bacteria (new method of mixed-cultures inoculation) to the contaminated culture, can serve as a promising approach.
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Affiliation(s)
- Hassan Ghorbannezhad
- Department of Microbial Biotechnology, School of Biology, College of Science, University of Tehran, Tehran, Iran.
| | - Hamid Moghimi
- Department of Microbial Biotechnology, School of Biology, College of Science, University of Tehran, Tehran, Iran.
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8
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Wang P, Zhang Y, Jin J, Wang T, Wang J, Jiang B. A high-efficiency phenanthrene-degrading Diaphorobacter sp. isolated from PAH-contaminated river sediment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 746:140455. [PMID: 32758981 DOI: 10.1016/j.scitotenv.2020.140455] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 06/18/2020] [Accepted: 06/21/2020] [Indexed: 05/15/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are typical persistent organic pollutants that accumulate in the environment, mainly from anthropogenic activities. Microbial degradation is the main pathway of PAHs degradation in the natural environment. Therefore, the widen of the available bank of microbial resources and exploration of the molecular degradation mechanisms of PAHs are crucial to the proper management of PAHs-polluted sites. In this work, a bacterial strain, YM-6, which has a high ability to utilize phenanthrene (PHE) as its sole source of carbon and energy, was isolated from sediment contaminated with PAHs. The strain YM-6 was found to degrade 96.3% of 100 mg/L of PHE in liquid cultures within 52 h. The strain was identified as Diaphorobacter sp. by 16S rDNA sequencing. The optimum growth conditions of the YM-6 strain were studied, and the results indicated that the optimum growth temperature of the strain was 30 °C, and the optimum growth pH was 7. The stain is well-suited for high-temperature stress (40 °C), and it could withstand 400 mg/L of PHE. The strain's PHE metabolism was assayed using GC-MS analyses. The results revealed that the YM-6 strain metabolized PHE via the phthalic acid pathway because the intermediates, such as phthalic acid, diethyl ester and phthalaldehydic acid, methyl ester, were detected. The use of this strain may be an attractive alternative for the bioremediation of polycyclic aromatic hydrocarbons in an aquatic environment.
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Affiliation(s)
- Ping Wang
- College of Energy and Environment, Anhui University of Technology, Maanshan 243002, China; Engineering Research Center of Biomembrane Water Purification and Utilization Technology, Ministry of Education, Maanshan 243002, China.
| | - Yongmin Zhang
- College of Energy and Environment, Anhui University of Technology, Maanshan 243002, China
| | - Jie Jin
- Appraisal Center for Environment & Engineering, Ministry of Ecology and Environment,Beijing 100012,China
| | - Tianhui Wang
- College of Energy and Environment, Anhui University of Technology, Maanshan 243002, China
| | - Jie Wang
- College of Energy and Environment, Anhui University of Technology, Maanshan 243002, China
| | - Bingyu Jiang
- College of Energy and Environment, Anhui University of Technology, Maanshan 243002, China
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Ali-Begloui M, Salehghamari E, Sadrai S, Ebrahimi M, Amoozegar MA, Salehi-Najafabadi A. Biotransformation of Trinitrotoluene (TNT) by Newly Isolated Slight Halophilic Bacteria. Microbiology (Reading) 2020. [DOI: 10.1134/s0026261720050033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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10
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Tang J, Hu Q, Lei D, Wu M, Zeng C, Zhang Q. Characterization of deltamethrin degradation and metabolic pathway by co-culture of Acinetobacter junii LH-1-1 and Klebsiella pneumoniae BPBA052. AMB Express 2020; 10:106. [PMID: 32495133 PMCID: PMC7270285 DOI: 10.1186/s13568-020-01043-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 05/27/2020] [Indexed: 01/18/2023] Open
Abstract
Deltamethrin and its major metabolite 3‐phenoxybenzoic acid (3‐PBA) have caused serious threat to the environment as well as human health, yet little is known about their degradation pathways by bacterial co-cultures. In this study, the growth and degradation kinetics of Acinetobacter junii LH-1-1 and Klebsiella pneumoniae BPBA052 during deltamethrin and 3-PBA degradation were established, respectively. When the inoculum proportion of the strains LH-1-1 and BPBA052 was 7.5:2.5, and LH-1-1 was inoculated 24 h before inoculation of strain BPBA052, 94.25% deltamethrin was degraded and 9.16 mg/L of 3-PBA remained within 72 h, which was 20.36% higher and 10.25 mg/L lesser than that in monoculture of LH-1-1, respectively. And the half-life of deltamethrin was shortened from 38.40 h to 24.58 h. Based on gas chromatography–mass spectrometry, 3-phenoxybenzaldehyde, 1,2-benzenedicarboxylic butyl dacyl ester, and phenol were identified as metabolites during deltamethrin degradation in co-culture. This is the first time that a co-culture degradation pathway of deltamethrin has been proposed based on these identified metabolites. Bioremediation of deltamethrin-contaminated soils with co-culture of strains LH-1-1 and BPBA052 significantly enhanced deltamethrin degradation and 3-PBA removal. This study provides a platform for further studies on deltamethrin and 3-PBA biodegradation mechanism in co-culture, and it also proposes a promising approach for efficient bioremediation of environment contaminated by pyrethroid pesticides and their associated metabolites.
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Kaur P, Balomajumder C. Effective mycoremediation coupled with bioaugmentation studies: An advanced study on newly isolated Aspergillus sp. in Type-II pyrethroid-contaminated soil. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 261:114073. [PMID: 32078877 DOI: 10.1016/j.envpol.2020.114073] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 01/14/2020] [Accepted: 01/23/2020] [Indexed: 06/10/2023]
Abstract
The intensive application of type-II pyrethroid worldwide in agricultural and residential practices potentially contributes to soil and water pollution, raising various concerns about environmental and public health. In the present study, robust fungus (strain PYR-P2) with high pyrethroids degradation potential was isolated from pesticide-contaminated soil. The strain was identified based on morphology and molecular characteristics, as Aspergillus sp. The screening of the transforming ability of strain PYR-P2 was evaluated in minimal salt media (MSM), where the fungus utilized up to 500 mg L-1 of pyrethroid mixture (cypermethrin (CYP), cyfluthrin (CYF), cyhalothrin (CYH)). With this in view, central composite design (CCD) with three independent variables (pH, temperature, and initial concentration) was employed to identify the optimal conditions for achieving maximum pyrethroid removal. Under optimal conditions, strain PYR-P2 was implemented for the bioaugmentation studies in natural and sterile soil (NS/SS) systems spiked with pyrethroid (single and mixture) at a concentration of 100 mg kg-1. The highest pyrethroid removal percentages were observed in fungally augmented NS, accompanied by a decrease in pyrethroid half-life (t1/2). Herein, the observed half-life (t1/2) of pyrethroids in the fungally augmented NS varied between 1.48 and 2.69 d, with equally good values recorded in SS as 1.65-3.10 d. Taken together, the mycoremediation study employing fungal (strain PYR-P2) augmentation under optimized conditions represents an efficient strategy to restore pyrethroid-contaminated soil.
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Affiliation(s)
- Parminder Kaur
- Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India.
| | - Chandrajit Balomajumder
- Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India
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12
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Li J, Li X, Yang Z, Tang TT. Effects of cellulose on polycyclic aromatic hydrocarbons removal and microbial community structure variation during anaerobic digestion of sewage sludge. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2020; 55:1104-1110. [PMID: 32458727 DOI: 10.1080/10934529.2020.1771958] [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: 02/14/2020] [Revised: 05/07/2020] [Accepted: 05/09/2020] [Indexed: 06/11/2023]
Abstract
Waste-activated sludge (WAS) with trace organic pollutants, e.g., polycyclic aromatic hydrocarbons (PAHs), has become an environmental concern. Anaerobic technology is a feasible option for WAS treatment due to its advantages of low-energy consumption and high-energy recovery compared to aerobic technology, but it still has many shortcomings, such as low biogas production and a low organic pollutant removal efficiency. Thus, this study investigated the effects of cellulose on PAHs degradation and microbial community structure variation during anaerobic digestion of sewage sludge. Four semicontinuous experiments were set by adding cellulose to sewage sludge based on the volatile solids (VS) concentration. The proportions of sludge VS to cellulose VS were 1:0 (CK), 1:0.2, 1:0.5 and 1:1. The results showed the following: (1) The biodegradation of 2-ring, 3-ring and 4-ring PAHs was enhanced by cellulose addition, with total PAHs removal efficiencies of 14.82%, 20.75% and 19.35%, respectively. (2) The abundance of bacteria that could degrade PAHs, such as Chloroflexi, Bacteroidetes, Aminicenantes, Planctomycetes and Spirochaeta, was obviously increased by cellulose addition. (3) The abundance of Methanosaeta during sludge anaerobic digestion was apparently increased by cellulose addition. Methanobacterium and Methanolinea appeared after cellulose addition, while they were not observed in the blank experiment.
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Affiliation(s)
- Jiang Li
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang, P.R. China
- College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou, P.R. China
| | - Xin Li
- College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou, P.R. China
| | - Zhao Yang
- College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou, P.R. China
| | - Tao Tao Tang
- College of Architecture and Environment, Sichuan University, Chengdu, Sichuan, P.R. China
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13
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Zhang K, Hu Z, Zeng F, Yang X, Wang J, Jing R, Zhang H, Li Y, Zhang Z. Biodegradation of petroleum hydrocarbons and changes in microbial community structure in sediment under nitrate-, ferric-, sulfate-reducing and methanogenic conditions. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 249:109425. [PMID: 31446121 DOI: 10.1016/j.jenvman.2019.109425] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 08/16/2019] [Accepted: 08/17/2019] [Indexed: 06/10/2023]
Abstract
In the present study, the biodegradation behaviors of petroleum hydrocarbons under various reducing conditions were investigated. n-Alkanes and polycyclic aromatic hydrocarbons (PAHs) were degraded with NO3-, Fe3+, SO42-, or HCO3- as terminal electron acceptors (TEAs), which link to four typical reducing conditions (i.e., nitrate-reducing, ferric-reducing, sulfate-reducing and methanogenic conditions, respectively) in sediment. The fastest degradation rates were achieved under sulfate-reducing conditions with half-lives of 49.51 days for n-alkanes and 58.74 days for PAHs. For short-chain n-alkanes and low-molecular weight (LMW) PAHs, relatively higher removal efficiencies were achieved under nitrate- and ferric-reducing conditions. The degradation of long-chain n-alkanes and high-molecular weight (HMW) PAHs coupled to methanogenesis was the most favored as compared with other reducing conditions. Carboxylation was found to be the principle mechanism for regulating n-alkane degradation coupled to denitrification, while the activation of n-alkanes by the addition of fumarate was the principle mechanism for the n-alkane degradation under sulfate-reducing conditions. The anaerobic metabolism of n-alkanes may not proceed via fumarate addition or carboxylation under ferric-reducing and methanogenic conditions. Illumina HiSeq sequencing revealed dissimilar structures of the microbial communities under various reducing conditions. It is hypothesized that the utilization of different TEAs for n-alkane and PAH degradation resulted in distinct microbial community structures, which were highly correlated with the varied degradation behaviors of petroleum hydrocarbons in sediment. The current results may provide reference value on better understanding the biodegradation behaviors of n-alkanes and PAHs in association with the induced microbial communities in sedimentary environments under the four typical reducing conditions.
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Affiliation(s)
- Kun Zhang
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou, 510642, China
| | - Zheng Hu
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou, 510642, China
| | - Feifan Zeng
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou, 510642, China
| | - Xingjian Yang
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou, 510642, China
| | - Jinjin Wang
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou, 510642, China
| | - Ran Jing
- Department of Civil and Environmental Engineering, University of Maryland at College Park, MD, 20742, USA
| | - Huanni Zhang
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou, 510642, China
| | - Yongtao Li
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou, 510642, China; Agro-Environmental Protection Institute, Ministry of Agriculture, Tianjin, 300191, China.
| | - Zhen Zhang
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou, 510642, China.
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Sivaram AK, Logeshwaran P, Lockington R, Naidu R, Megharaj M. Low molecular weight organic acids enhance the high molecular weight polycyclic aromatic hydrocarbons degradation by bacteria. CHEMOSPHERE 2019; 222:132-140. [PMID: 30703652 DOI: 10.1016/j.chemosphere.2019.01.110] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Revised: 01/16/2019] [Accepted: 01/21/2019] [Indexed: 06/09/2023]
Abstract
The biodegradation potential of three bacterial cultures isolated from the rhizosphere of maize (Zea mays) and Sudan grass (Sorghum sudanense) grown in PAHs contaminated soils to degrade benzo[a]pyrene (BaP) and pyrene (PYR) was assessed. Of the three bacterial cultures isolated, two belonged to Gram-positive bacteria of phylum Actinobacteria namely Arthrobacter sp. MAL3 and Microbacterium sp. MAL2. The Gram-negative bacterial culture was Stenotrophomonas sp. MAL1, from the phylum Proteobacteria. The cultures were grown in the presence of BaP and PYR as sole carbon sources and with the addition of low molecular weight organic acids (LMWOAs) mixture. After 10-14 days of exposure, all the bacterial isolates exhibited a complete degradation of PYR with the addition of LMWOAs mixture, whereas only 38.7% of BaP was degraded by Stenotrophomonas sp. MAL1 with the addition of LMWOAs mixture. In addition, enhanced PAHs biodegradation by bacterial culture was observed when the PAHs present as mixture (BaP + PYR) with the addition of LMWOAs. Dioxygenase genes were detected in Stenotrophomonas sp. MAL1 (phnAC), and Arthrobacter sp. MAL3 (nidA and PAH-RHDα). Therefore, this study provides new insights on the influence of LMWOAs in enhancing the degradation of high molecular weight (HMW) PAHs in soil by rhizosphere bacterial cultures.
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Affiliation(s)
- Anithadevi Kenday Sivaram
- Global Centre for Environmental Remediation, Faculty of Science, The University of Newcastle (UoN), University Drive, Callaghan, NSW, 2308, Australia; Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Mawson Lakes, SA, 5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environments, ATC Building, The University of Newcastle, University Drive, Callaghan, NSW, 2308, Australia
| | - Panneerselvan Logeshwaran
- Global Centre for Environmental Remediation, Faculty of Science, The University of Newcastle (UoN), University Drive, Callaghan, NSW, 2308, Australia; Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Mawson Lakes, SA, 5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environments, ATC Building, The University of Newcastle, University Drive, Callaghan, NSW, 2308, Australia
| | - Robin Lockington
- Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Mawson Lakes, SA, 5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environments, ATC Building, The University of Newcastle, University Drive, Callaghan, NSW, 2308, Australia
| | - Ravi Naidu
- Global Centre for Environmental Remediation, Faculty of Science, The University of Newcastle (UoN), University Drive, Callaghan, NSW, 2308, Australia; Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Mawson Lakes, SA, 5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environments, ATC Building, The University of Newcastle, University Drive, Callaghan, NSW, 2308, Australia
| | - Mallavarapu Megharaj
- Global Centre for Environmental Remediation, Faculty of Science, The University of Newcastle (UoN), University Drive, Callaghan, NSW, 2308, Australia; Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Mawson Lakes, SA, 5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environments, ATC Building, The University of Newcastle, University Drive, Callaghan, NSW, 2308, Australia.
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15
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Subashchandrabose SR, Venkateswarlu K, Naidu R, Megharaj M. Biodegradation of high-molecular weight PAHs by Rhodococcus wratislaviensis strain 9: Overexpression of amidohydrolase induced by pyrene and BaP. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 651:813-821. [PMID: 30253363 DOI: 10.1016/j.scitotenv.2018.09.192] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 09/14/2018] [Accepted: 09/15/2018] [Indexed: 06/08/2023]
Abstract
A Gram-positive bacterium, Rhodococcus wratislaviensis strain 9, completely degraded 280 μM of phenanthrene, 40% of 50 μM pyrene or 28% of 40 μM benzo[a]pyrene (BaP), each supplemented in M9 medium, within 7 days. PCR screening with gene-specific primers indicated that the strain 9 harbors genes which code for 2,3-dihydroxybiphenyl 1,2-dioxygenase (bphC), 4-nitrophenol 2-monooxygenase component B (npcB) as well as oxygenase component (nphA1), 4-hydroxybenzoate 3-monooxygenase (phbH), extradiol dioxygenase (edo), and naphthalene dioxygenase (ndo), all of which are largely implicated in biodegradation of several aromatic hydrocarbons. An orthogonal design experiment revealed that BaP biodegradation was greatly enhanced by surfactants such as Tween 80, Triton X-100 and linoleic acid, suggesting that bioavailability is the major limiting factor in bacterial metabolism of BaP. Both pyrene and BaP induced the overexpression of amidohydrolase, a metallo-dependent hydrolase, possibly involved in their biodegradation by strain 9. The up-regulation of amidohydrolase gene induced by BaP, in particular, was also confirmed by semi-quantitative RT-PCR. Catechol 2,3-dioxygenase and the large subunit of ndo, but not amidohydrolase, accumulated when the strain 9 was grown on phenanthrene. To our knowledge, this is the first report on overexpression of amidohydrolase and its possible implication in bacterial degradation of high-molecular weight PAHs.
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Affiliation(s)
- Suresh R Subashchandrabose
- Global Centre for Environmental Remediation (GCER), Faculty of Science, The University of Newcastle, Callaghan NSW 2308, Australia, and CRC CARE, Newcastle University LPO, PO Box 18, Callaghan, NSW 2308, Australia
| | - Kadiyala Venkateswarlu
- Formerly Department of Microbiology, Sri Krishnadevaraya University, Anantapur 515055, India
| | - Ravi Naidu
- Global Centre for Environmental Remediation (GCER), Faculty of Science, The University of Newcastle, Callaghan NSW 2308, Australia, and CRC CARE, Newcastle University LPO, PO Box 18, Callaghan, NSW 2308, Australia
| | - Mallavarapu Megharaj
- Global Centre for Environmental Remediation (GCER), Faculty of Science, The University of Newcastle, Callaghan NSW 2308, Australia, and CRC CARE, Newcastle University LPO, PO Box 18, Callaghan, NSW 2308, Australia.
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16
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Chen J, Hu Y, Huang W, Liu Y, Tang M, Zhang L, Sun J. Biodegradation of oxytetracycline and electricity generation in microbial fuel cell with in situ dual graphene modified bioelectrode. BIORESOURCE TECHNOLOGY 2018; 270:482-488. [PMID: 30245318 DOI: 10.1016/j.biortech.2018.09.060] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 09/10/2018] [Accepted: 09/11/2018] [Indexed: 06/08/2023]
Abstract
A three-step method to prepare dual graphene modified bioelectrode (D-GM-BE) in microbial fuel cell (MFC) in previous studies. This study explored the biodegradation of oxytetracycline (OTC) and electricity generation in O-D-GM-BE MFC. The OTC removal efficiency of graphene modified biocathode and bioanode (O-GM-BC, O-GM-BA) was 95.0% and 91.8% in eight days. The maximum power density generated by O-D-GM-BE MFC was 86.6 ± 5.1 mW m-2, which was 2.1 times of that in OTC control bioelectrode (O-C-BE) MFC. The Rct of O-GM-BA and O-GM-BC were decreased significantly by 78.3% and 76.3%. OTC was biodegraded to monocyclic benzene compounds by bacteria. O-GM-BA was affected strongly by OTC, and Salmonella and Trabulsiella were accounted for 83.0%, while typical exoelectrogens (Geobacter) were still enriched after the maturity of biofilm. In O-GM-BC, bacteria related with OTC biodegradation (Comamonas, Ensifer, Sphingopyxis, Pseudomonas, Dechloromonas, etc.) were enriched, which contributed to the high removal efficiency of OTC.
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Affiliation(s)
- Junfeng Chen
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, PR China; School of Life Sciences, Qufu Normal University, Qufu 273165, PR China
| | - Yongyou Hu
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, PR China.
| | - Wantang Huang
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, PR China
| | - Yanyan Liu
- School of Life Sciences, Qufu Normal University, Qufu 273165, PR China
| | - Meizhen Tang
- School of Life Sciences, Qufu Normal University, Qufu 273165, PR China
| | - Lihua Zhang
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, PR China
| | - Jian Sun
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, PR China
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17
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Abstract
The mining industry is the major producer of acid mine drainage (AMD). The problem of AMD concerns at active and abandoned mine sites. Acid mine drainage needs to be treated since it can contaminate surface water. Constructed wetlands (CW), a passive treatment technology, combines naturally-occurring biogeochemical, geochemical, and physical processes. This technology can be used for the long-term remediation of AMD. The challenge is to overcome some factors, for instance, chemical characteristics of AMD such a high acidity and toxic metals concentrations, to achieve efficient CW systems. Design criteria, conformational arrangements, and careful selection of each component must be considered to achieve the treatment. The main objective of this review is to summarize the current advances, applications, and the prevalent difficulties and opportunities to apply the CW technology for AMD treatment. According to the cited literature, sub-surface CW (SS-CW) systems are suggested for an efficient AMD treatment. The synergistic interactions between CW components determine heavy metal removal from water solution. The microorganism-plant interaction is considered the most important since it implies symbiosis mechanisms for heavy metal removal and tolerance. In addition, formation of litter and biofilm layers contributes to heavy metal removal by adsorption mechanisms. The addition of organic amendments to the substrate material and AMD bacterial consortium inoculation are some of the strategies to improve heavy metal removal. Adequate experimental design from laboratory to full scale systems need to be used to optimize equilibria between CW components selection and construction and operational costs. The principal limitations for CW treating AMD is the toxicity effect that heavy metals produce on CW plants and microorganisms. However, these aspects can be solved partially by choosing carefully constructed wetlands components suitable for the AMD characteristics. From the economic point of view, a variety of factors affects the cost of constructed wetlands, such as: detention time, treatment goals, media type, pretreatment type, number of cells, source, and availability of gravel media, and land requirements, among others.
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18
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Kamyabi A, Nouri H, Moghimi H. Characterization of pyrene degradation and metabolite identification by Basidioascus persicus and mineralization enhancement with bacterial-yeast co-culture. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 163:471-477. [PMID: 30075450 DOI: 10.1016/j.ecoenv.2018.07.098] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 07/18/2018] [Accepted: 07/24/2018] [Indexed: 06/08/2023]
Abstract
In this paper, we introduce pyrene degrader halotolerant yeast, Basidioascus persicus EBL-C16 and characterize its growth in different salt concentrations. Investigation of the removal of different concentrations of pyrene showed that B. persicus EBL-C16 was able to eliminate 50-90% of pyrene in the presence of 2.5% salt and also mineralize phenanthrene and anthracene. Growth and depletion kinetics of 500 mg L-1 of pyrene removal revealed 79% degradation and the growth rate reached 1.4 g L-1 of dry weight, decomposition constant rate was obtained as 0.074 day-1 and the half-life was 9.33 days. When minimal medium was replaced with Persian Gulf water, 48% increase in pyrene removal was detected by yeast strain. The mass spectrometry of the treated samples specified the phthalic acid pathway as the metabolic pathway of pyrene degradation by B. persicus. Study of the synergistic effect of using rhamnolipid and co-culture of yeast with Pseudomonas putida ATCC 12633 revealed that the combination of both of them with B. persicus increased 21% pyrene elimination. The findings of this study can be used to comprehend the mechanisms of oil hydrocarbon degradation by yeasts. Furthermore, the results demonstrated the promising potential of yeast-bacteria co-culture for cleaning of oil spills in marine and saline soil contaminated areas.
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Affiliation(s)
- A Kamyabi
- Department of Microbial Biotechnology, School of Biology, College of Science, University of Tehran, Tehran, Iran
| | - H Nouri
- Department of Microbial Biotechnology, School of Biology, College of Science, University of Tehran, Tehran, Iran
| | - H Moghimi
- Department of Microbial Biotechnology, School of Biology, College of Science, University of Tehran, Tehran, Iran.
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19
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Chen S, Qu M, Ding J, Zhang Y, Wang Y, Di Y. BaP-metals co-exposure induced tissue-specific antioxidant defense in marine mussels Mytilus coruscus. CHEMOSPHERE 2018; 205:286-296. [PMID: 29704836 DOI: 10.1016/j.chemosphere.2018.04.109] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 04/13/2018] [Accepted: 04/17/2018] [Indexed: 06/08/2023]
Abstract
Both benzo(α)pyrene (BaP) and metals are frequently found in marine ecosystem and can cause detrimental effects in marine organism, especially the filter feeder-marine mussels. Although the biological responses in mussels have been well-studied upon the single metal or BaP exposure, the information about antioxidant defense, especially in different tissues of mussels, are still limited. Considering the variety of contaminants existing in the actual marine environment, single BaP (56 μg/L) and the co-exposure with Cu, Cd and Pb (50 μg/L, 50 μg/L and 3 mg/L respectively) were applied in a 6 days exposure followed by 6 days depuration experiment. The alterations of superoxide dismutase (SOD), catalase (CAT) activities and total antioxidant capacity (TAC) level were assessed in haemolymph, gills and digestive glands of marine mussels, Mytilus coruscus. An unparalleled change in antioxidant biomarkers was observed in all cells/tissues, with the SOD activity showing higher sensitivity to exposure. A tissue-specific response showing unique alteration in gill was investigated, indicating the different function of tissues during stress responses. Depressed antioxidant effects were induced by BaP-metals co-exposure, indicating the interaction may alter the intact properties of BaP. To our knowledge, this is the first research to explore the antioxidant defense induced by combined exposure of BaP-metals regarding to tissue-specific responses in marine mussels. The results and experimental model will provide valuable information and can be utilized in the investigation of stress response mechanisms, especially in relation to tissue functions in marine organism in the future.
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Affiliation(s)
- Siyu Chen
- Institute of Marine Biology, Ocean College, Zhejiang University, Zhoushan, 316000, China
| | - Mengjie Qu
- Institute of Marine Biology, Ocean College, Zhejiang University, Zhoushan, 316000, China
| | - Jiawei Ding
- Institute of Marine Biology, Ocean College, Zhejiang University, Zhoushan, 316000, China
| | - Yifei Zhang
- Institute of Marine Biology, Ocean College, Zhejiang University, Zhoushan, 316000, China
| | - Yi Wang
- Institute of Marine Biology, Ocean College, Zhejiang University, Zhoushan, 316000, China
| | - Yanan Di
- Institute of Marine Biology, Ocean College, Zhejiang University, Zhoushan, 316000, China.
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20
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Baltrons O, López-Mesas M, Vilaseca M, Gutiérrez-Bouzán C, Le Derf F, Portet-Koltalo F, Palet C. Influence of a mixture of metals on PAHs biodegradation processes in soils. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 628-629:150-158. [PMID: 29432926 DOI: 10.1016/j.scitotenv.2018.02.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 01/07/2018] [Accepted: 02/02/2018] [Indexed: 06/08/2023]
Abstract
In order to assess the effect of mixed pollutants, the influence of different concentration levels of a mixture of metals (Cr, Co, Pb, Mn, Ni, Cu, Zn) on the biodegradation of some PAHs (phenanthrene, fluoranthene, pyrene, benzo[b]fluoranthene and benzo[a]pyrene) in soil samples was evaluated. To do so, groups of microcosms of a natural soil from the region of Sabadell (Barcelona, Spain) were prepared as a reproduction of the native environment at laboratory scale, under controlled conditions. Mixtures of PAHs and metals were carefully selected, according to soil characterization and microbiological growth preliminary assays, and were added to microcosms. These microcosms were analyzed at various times, along two months, to obtain PAHs dissipation time-courses. A first-order kinetic modelling allowed obtaining different rate constants and DT50 values as a function of the metal levels introduced in microcosms. As a general observation, the higher the concentration of metals, the lower the biodegradation of PAHs of 3-4 rings (phenanthrene, fluoranthene and pyrene). On the other hand, no important effect on the biodegradation of higher molecular weight PAHs (benzo[b]fluoranthene and benzo[a]pyrene) was observed at the different concentration levels of metals tested.
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Affiliation(s)
- Oriol Baltrons
- Centre Grup de Tècniques de Separació en Química (GTS), Edifici CN, Universitat Autònoma de Barcelona, 08193, Bellaterra, Barcelona, Spain; CNRS/Univ Pau & Adour, Institut des sciences analytiques et de physico-chimie pour l'environnement et les matériaux, UMR5264, 64000 Pau, France
| | - Montserrat López-Mesas
- Centre Grup de Tècniques de Separació en Química (GTS), Edifici CN, Universitat Autònoma de Barcelona, 08193, Bellaterra, Barcelona, Spain.
| | - Mercè Vilaseca
- Laboratori de Control de la Contaminació Ambiental, Institut d'Investigació Tèxtil i Cooperació Industrial de Terrassa (INTEXTER), Edifici TR7, Carrer Colom, 15, 08222 Terrassa, Spain
| | - Carmen Gutiérrez-Bouzán
- Laboratori de Control de la Contaminació Ambiental, Institut d'Investigació Tèxtil i Cooperació Industrial de Terrassa (INTEXTER), Edifici TR7, Carrer Colom, 15, 08222 Terrassa, Spain
| | - Franck Le Derf
- UMR 6014 COBRA, Université de Rouen, 55 Rue Saint Germain, 27000 Évreux, France
| | | | - Cristina Palet
- Centre Grup de Tècniques de Separació en Química (GTS), Edifici CN, Universitat Autònoma de Barcelona, 08193, Bellaterra, Barcelona, Spain
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Davie-Martin CL, Stratton KG, Teeguarden JG, Waters KM, Simonich SLM. Implications of Bioremediation of Polycyclic Aromatic Hydrocarbon-Contaminated Soils for Human Health and Cancer Risk. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:9458-9468. [PMID: 28836766 DOI: 10.1021/acs.est.7b02956] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Bioremediation uses soil microorganisms to degrade polycyclic aromatic hydrocarbons (PAHs) into less toxic compounds and can be performed in situ, without the need for expensive infrastructure or amendments. This review provides insights into the cancer risks associated with PAH-contaminated soils and places bioremediation outcomes in a context relevant to human health. We evaluated which bioremediation strategies were most effective for degrading PAHs and estimated the cancer risks associated with PAH-contaminated soils. Cancer risk was statistically reduced in 89% of treated soils following bioremediation, with a mean degradation of 44% across the B2 group PAHs. However, all 180 treated soils had postbioremediation cancer risk values that exceeded the U.S. Environmental Protection Agency (USEPA) health-based acceptable risk level (by at least a factor of 2), with 32% of treated soils exceeding recommended levels by greater than 2 orders of magnitude. Composting treatments were most effective at biodegrading PAHs in soils (70% average reduction compared with 28-53% for the other treatment types), which was likely due to the combined influence of the rich source of nutrients and microflora introduced with organic compost amendments. Ultimately, bioremediation strategies, in the studies reviewed, were unable to successfully remove carcinogenic PAHs from contaminated soils to concentrations below the target cancer risk levels recommended by the USEPA.
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Affiliation(s)
- Cleo L Davie-Martin
- Department of Environmental and Molecular Toxicology, Oregon State University , Corvallis, Oregon 97331, United States
- Department of Microbiology, Oregon State University , Corvallis, Oregon 97331, United States
| | - Kelly G Stratton
- Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Justin G Teeguarden
- Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Katrina M Waters
- Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Staci L Massey Simonich
- Department of Environmental and Molecular Toxicology, Oregon State University , Corvallis, Oregon 97331, United States
- Department of Chemistry, Oregon State University , Corvallis, Oregon 97331, United States
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Kuppusamy S, Thavamani P, Venkateswarlu K, Lee YB, Naidu R, Megharaj M. Remediation approaches for polycyclic aromatic hydrocarbons (PAHs) contaminated soils: Technological constraints, emerging trends and future directions. CHEMOSPHERE 2017; 168:944-968. [PMID: 27823779 DOI: 10.1016/j.chemosphere.2016.10.115] [Citation(s) in RCA: 318] [Impact Index Per Article: 45.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 10/26/2016] [Accepted: 10/27/2016] [Indexed: 05/22/2023]
Abstract
For more than a decade, the primary focus of environmental experts has been to adopt risk-based management approaches to cleanup PAH polluted sites that pose potentially destructive ecological consequences. This focus had led to the development of several physical, chemical, thermal and biological technologies that are widely implementable. Established remedial options available for treating PAH contaminated soils are incineration, thermal conduction, solvent extraction/soil washing, chemical oxidation, bioaugmentation, biostimulation, phytoremediation, composting/biopiles and bioreactors. Integrating physico-chemical and biological technologies is also widely practiced for better cleanup of PAH contaminated soils. Electrokinetic remediation, vermiremediation and biocatalyst assisted remediation are still at the development stage. Though several treatment methods to remediate PAH polluted soils currently exist, a comprehensive overview of all the available remediation technologies to date is necessary so that the right technology for field-level success is chosen. The objective of this review is to provide a critical overview in this respect, focusing only on the treatment options available for field soils and ignoring the spiked ones. The authors also propose the development of novel multifunctional green and sustainable systems like mixed cell culture system, biosurfactant flushing, transgenic approaches and nanoremediation in order to overcome the existing soil- contaminant- and microbial-associated technological limitations in tackling high molecular weight PAHs. The ultimate objective is to ensure the successful remediation of long-term PAH contaminated soils.
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Affiliation(s)
- Saranya Kuppusamy
- Institute of Agriculture and Life Science, Gyeongsang National University, Jinju, 52828, Republic of Korea; Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Mawson Lakes, SA5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of Environment (CRC CARE), PO Box 486, Salisbury South, SA5106, Australia.
| | - Palanisami Thavamani
- Cooperative Research Centre for Contamination Assessment and Remediation of Environment (CRC CARE), PO Box 486, Salisbury South, SA5106, Australia; Global Centre for Environmental Remediation (GCER), Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Kadiyala Venkateswarlu
- Formerly Department of Microbiology, Sri Krishnadevaraya University, Anantapur, 515055, India
| | - Yong Bok Lee
- Institute of Agriculture and Life Science, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Ravi Naidu
- Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Mawson Lakes, SA5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of Environment (CRC CARE), PO Box 486, Salisbury South, SA5106, Australia; Global Centre for Environmental Remediation (GCER), Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Mallavarapu Megharaj
- Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Mawson Lakes, SA5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of Environment (CRC CARE), PO Box 486, Salisbury South, SA5106, Australia; Global Centre for Environmental Remediation (GCER), Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW, 2308, Australia
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23
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Kuppusamy S, Thavamani P, Megharaj M, Venkateswarlu K, Lee YB, Naidu R. Pyrosequencing analysis of bacterial diversity in soils contaminated long-term with PAHs and heavy metals: Implications to bioremediation. JOURNAL OF HAZARDOUS MATERIALS 2016; 317:169-179. [PMID: 27267691 DOI: 10.1016/j.jhazmat.2016.05.066] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 05/18/2016] [Accepted: 05/21/2016] [Indexed: 06/06/2023]
Abstract
Diversity, distribution and composition of bacterial community of soils contaminated long-term with both polycyclic aromatic hydrocarbons (PAHs) and heavy metals were explored for the first time following 454 pyrosequencing. Strikingly, the complete picture of the Gram positive (+ve) and Gram negative (-ve) bacterial profile obtained in our study illustrates novel postulates that include: (1) Metal-tolerant and PAH-degrading Gram -ves belonging to the class Alphaproteobacteria persist relatively more in the real contaminated sites compared to Gram +ves, (2) Gram +ves are not always resistant to heavy metal toxicity, (3) Stenotrophomonas followed by Burkholderia and Pseudomonas are the dominant genera of PAH degraders with high metabolic activity in long-term contaminated soils, (4) Actinobacteria is the predominant group among the Gram +ves in soils contaminated with high molecular weight PAHs that co-exist with toxic heavy metals like Pb, Cu and Zn, (5) Microbial communities are nutrient-driven in natural environments and (6) Catabolically potential Gram +/-ves with diverse applicability to remediate the real contaminated sites evolve eventually in the historically-polluted soils. Thus, the most promising indigenous Gram +/-ve strains from the long-term contaminated sites with increased catabolic potential, enzymatic activity and metal tolerance need to be harnessed for mixed contaminant cleanups.
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Affiliation(s)
- Saranya Kuppusamy
- Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea; Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Mawson Lakes, SA5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of Environment (CRC CARE), PO Box 486, Salisbury South, SA5106, Australia.
| | - Palanisami Thavamani
- Cooperative Research Centre for Contamination Assessment and Remediation of Environment (CRC CARE), PO Box 486, Salisbury South, SA5106, Australia; Global Centre for Environmental Remediation (GCER), Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Mallavarapu Megharaj
- Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Mawson Lakes, SA5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of Environment (CRC CARE), PO Box 486, Salisbury South, SA5106, Australia; Global Centre for Environmental Remediation (GCER), Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Kadiyala Venkateswarlu
- Formerly Department of Microbiology, Sri Krishnadevaraya University, Anantapur 515055, India
| | - Yong Bok Lee
- Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Ravi Naidu
- Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Mawson Lakes, SA5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of Environment (CRC CARE), PO Box 486, Salisbury South, SA5106, Australia; Global Centre for Environmental Remediation (GCER), Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW 2308, Australia
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Kuppusamy S, Thavamani P, Megharaj M, Lee YB, Naidu R. Polyaromatic hydrocarbon (PAH) degradation potential of a new acid tolerant, diazotrophic P-solubilizing and heavy metal resistant bacterium Cupriavidus sp. MTS-7 isolated from long-term mixed contaminated soil. CHEMOSPHERE 2016; 162:31-39. [PMID: 27475295 DOI: 10.1016/j.chemosphere.2016.07.052] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 07/09/2016] [Accepted: 07/15/2016] [Indexed: 06/06/2023]
Abstract
An isolate of Cupriavidus (strain MTS-7) was identified from a long-term PAHs and heavy metals mixed contaminated soil with the potential to biodegrade both LMW and HMW PAHs with added unique traits of acid and alkali tolerance, heavy metal tolerance, self-nutrient assimilation by N fixation and P solubilization. This strain completely degraded the model 3 (150 mg L(-1) Phe), 4 (150 mg L(-1) Pyr) and 5 (50 mg L(-1) BaP) ring PAHs in 4, 20 and 30 days, respectively. It could mineralize 90-100% of PAHs (200 mg L(-1) of Phe and Pyr) within 15 days across pH ranging from 5 to 8 and even in the presence of toxic metal contaminations. During biodegradation, the minimum inhibitory concentrations were 5 (Cu(2+)) and 3 (Cd(2+), Pb(2+), Zn(2+)) mg L(-1) of the potentially bioavailable metal ions and over 17 mg L(-1) metal levels was lethal for the microbe. Further, it could fix 217-274 μg mL(-1) of N and solubilize 79-135 μg mL(-1) of P while PAHs degradation. MTS-7 as a superior candidate could be thus used in the enhanced bioaugmentation and/or phytoremediation of long-term mixed contaminated sites.
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Affiliation(s)
- Saranya Kuppusamy
- Institute of Agriculture and Life Science, Gyeongsang National University, Jinju, 660-701, South Korea; Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Mawson Lakes, SA5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of Environment (CRC CARE), PO Box 486, Salisbury South, SA5106, Australia.
| | - Palanisami Thavamani
- Cooperative Research Centre for Contamination Assessment and Remediation of Environment (CRC CARE), PO Box 486, Salisbury South, SA5106, Australia; Global Centre for Environmental Remediation (GCER), Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Mallavarapu Megharaj
- Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Mawson Lakes, SA5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of Environment (CRC CARE), PO Box 486, Salisbury South, SA5106, Australia; Global Centre for Environmental Remediation (GCER), Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Yong Bok Lee
- Institute of Agriculture and Life Science, Gyeongsang National University, Jinju, 660-701, South Korea
| | - Ravi Naidu
- Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Mawson Lakes, SA5095, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of Environment (CRC CARE), PO Box 486, Salisbury South, SA5106, Australia; Global Centre for Environmental Remediation (GCER), Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW, 2308, Australia
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