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Wang H, Zhang L, Cui H, Ma X, Li Z, Liang B, Wang AJ. Mechanisms linking triclocarban biotransformation to functional response and antimicrobial resistome evolution in wastewater treatment systems. WATER RESEARCH 2024; 260:121909. [PMID: 38878310 DOI: 10.1016/j.watres.2024.121909] [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: 03/22/2024] [Revised: 05/28/2024] [Accepted: 06/06/2024] [Indexed: 07/27/2024]
Abstract
Evaluating the role of antimicrobials biotransformation in the regulation of metabolic functions and antimicrobial resistance evolution in wastewater biotreatment systems is crucial to ensuring water security. However, the associated mechanisms remain poorly understood. Here, we investigate triclocarban (TCC, one of the typical antimicrobials) biotransformation mechanisms and the dynamic evolution of systemic function disturbance and antimicrobial resistance risk in a complex anaerobic hydrolytic acidification (HA)-anoxic (ANO)/oxic (O) process. We mined key functional genes involved in the TCC upstream (reductive dechlorination and amide bonds hydrolysis) and downstream (chloroanilines catabolism) biotransformation pathways by metagenomic sequencing. Acute and chronic stress of TCC inhibit the production of volatile fatty acids (VFAs), NH4+ assimilation, and nitrification. The biotransformation of TCC via a single pathway cannot effectively relieve the inhibition of metabolic functions (e.g., carbon and nitrogen transformation and cycling) and enrichment of antimicrobial resistance genes (ARGs). Importantly, the coexistence of TCC reductive dechlorination and hydrolysis pathways and subsequent ring-opening catabolism play a critical role for stabilization of systemic metabolic functions and partial control of antimicrobial resistance risk. This study provides new insights into the mechanisms linking TCC biotransformation to the dynamic evolution of systemic functions and risks, and highlights critical regulatory information for enhanced control of TCC risks in complex biotreatment systems.
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Affiliation(s)
- Hao Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Liying Zhang
- State Key Laboratory of Urban Water Resource and Environment, School of Civil & Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, China
| | - Hanlin Cui
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China; State Key Laboratory of Urban Water Resource and Environment, School of Civil & Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, China
| | - Xiaodan Ma
- State Key Laboratory of Urban Water Resource and Environment, School of Civil & Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, China
| | - Zhiling Li
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Bin Liang
- State Key Laboratory of Urban Water Resource and Environment, School of Civil & Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, China.
| | - Ai-Jie Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China; State Key Laboratory of Urban Water Resource and Environment, School of Civil & Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, China.
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2
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Li X, Wang J, Yang Y, Jin H, Wang H, Zhang Z, Li X, Cui Y, Wang X, Yan J. Sequential Reductive Dechlorination of Triclosan by Sediment Microbiota Harboring Organohalide-Respiring Dehalococcoidia. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024. [PMID: 39106339 DOI: 10.1021/acs.est.4c04594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/09/2024]
Abstract
Aquatic ecosystems represent a prominent reservoir of xenobiotic compounds, including triclosan (TCS), a broad-spectrum biocide extensively used in pharmaceuticals and personal care products. As a biogeochemical hotspot, the potential of aquatic sediments for the degradation of TCS remains largely unexplored. Here, we demonstrated anaerobic biotransformation of TCS in a batch microcosm established with freshwater sediment. The initial 43.4 ± 2.2 μM TCS was completely dechlorinated to diclosan, followed by subsequent conversion to 5-chloro-2-phenoxyphenol, a monochlorinated TCS (MCS) congener. Analyses of community profile and population dynamics revealed substrate-specific, temporal-growth of Dehalococcoides and Dehalogenimonas, which are organohalide-respiring bacteria (OHRB) affiliated with class Dehalococcoidia. Dehalococcoides growth was linked to the formation of diclosan but not MCS, yielding 3.6 ± 0.4 × 107 cells per μmol chloride released. A significant increase in Dehalogenimonas cells, from 1.5 ± 0.4 × 104 to 1.5 ± 0.3 × 106 mL-1, only occurred during the reductive dechlorination of diclosan to MCS. Dehalococcoidia OHRB gradually disappeared following consecutive transfers, likely due to the removal of sediment materials with strong adsorption capacity that could alleviate TCS's antimicrobial toxicity. Consequently, a solid-free, functionally stable TCS-dechlorinating consortium was not obtained. Our results provide insights into the microbial determinants controlling the environmental fate of TCS.
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Affiliation(s)
- Xiuying Li
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, Liaoning 110016, China
- Liaoning Technical Innovation Center for Ecological Restoration of Polluted Environment, Shenyang, Liaoning 110016, China
| | - Jingjing Wang
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, Liaoning 110016, China
- Liaoning Technical Innovation Center for Ecological Restoration of Polluted Environment, Shenyang, Liaoning 110016, China
| | - Yi Yang
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, Liaoning 110016, China
- Liaoning Technical Innovation Center for Ecological Restoration of Polluted Environment, Shenyang, Liaoning 110016, China
| | - Huijuan Jin
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, Liaoning 110016, China
- Liaoning Technical Innovation Center for Ecological Restoration of Polluted Environment, Shenyang, Liaoning 110016, China
| | - Hongyan Wang
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, Liaoning 110016, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhipeng Zhang
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, Liaoning 110016, China
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang 110866, China
| | - Xiaocui Li
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, Liaoning 110016, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yiru Cui
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, Liaoning 110016, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xin Wang
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, Liaoning 110016, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jun Yan
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, Liaoning 110016, China
- Liaoning Technical Innovation Center for Ecological Restoration of Polluted Environment, Shenyang, Liaoning 110016, China
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3
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Gao Z, Wei Z, Zheng Y, Wu S, Zhou X, Ruan A. Evolution mechanism of microbial community structure and metabolic activity in aquatic nutrient-poor sedimentary environments driven by 17β-estradiol pollution. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-34580-4. [PMID: 39093391 DOI: 10.1007/s11356-024-34580-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Accepted: 07/27/2024] [Indexed: 08/04/2024]
Abstract
17β-Estradiol (E2) is a novel micro-pollutant that is widely distributed in aquatic sediments and has a universal toxicological effect on aquatic organisms. However, its ecological impact on aquatic microorganisms is not yet clear. In this study, we designed a simulation system for oligotrophic water deposition in the laboratory, analyzed the impact of different concentrations of E2 pollution on the carbon metabolism activity (carbon gas emission rate) of water microorganisms. Based on high-throughput sequencing results, we revealed the impact of E2 pollution on the community structure succession and metabolic function of bacteria, archaea, and methanogens in the simulated system, explored the impact mechanism of E2 pollution on microbial carbon metabolism in water bodies. Our results suggested that E2 significantly impacts the bacterial and archaeal community rather than the methanogen community, thereby indirectly inhibiting methane production. The achievements will bridge the theoretical gap between estrogen metabolism and carbon metabolism in sedimentary environments and contribute to enriching the ecological toxicology theory of steroid estrogen.
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Affiliation(s)
- Zihao Gao
- The National Key Laboratory of Water Disaster Prevention, Hohai University, Nanjing, 210098, China
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China
| | - Zhipeng Wei
- The National Key Laboratory of Water Disaster Prevention, Hohai University, Nanjing, 210098, China
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China
| | - Yu Zheng
- The National Key Laboratory of Water Disaster Prevention, Hohai University, Nanjing, 210098, China
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China
| | - Shuai Wu
- The National Key Laboratory of Water Disaster Prevention, Hohai University, Nanjing, 210098, China
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China
| | - Xiaotian Zhou
- The National Key Laboratory of Water Disaster Prevention, Hohai University, Nanjing, 210098, China
- College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China
| | - Aidong Ruan
- The National Key Laboratory of Water Disaster Prevention, Hohai University, Nanjing, 210098, China.
- College of Geography and Remote Sensing, Hohai University, Nanjing, 210098, China.
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4
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Hernández-Ospina DA, Osorio-González CS, Miri S, Kaur Brar S. New perspectives on the anaerobic degradation of BTEX: Mechanisms, pathways, and intermediates. CHEMOSPHERE 2024; 361:142490. [PMID: 38821131 DOI: 10.1016/j.chemosphere.2024.142490] [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: 04/05/2024] [Revised: 05/27/2024] [Accepted: 05/29/2024] [Indexed: 06/02/2024]
Abstract
Aromatic hydrocarbons like benzene, toluene, xylene, and ethylbenzene (BTEX) can escape into the environment from oil and gas operations and manufacturing industries posing significant health risks to humans and wildlife. Unlike conventional clean-up methods used, biological approaches such as bioremediation can provide a more energy and labour-efficient and environmentally friendly option for sensitive areas such as nature reserves and cities, protecting biodiversity and public health. BTEX contamination is often concentrated in the subsurface of these locations where oxygen is rapidly depleted, and biodegradation relies on anaerobic processes. Thus, it is critical to understand the anaerobic biodegradation characteristics as it has not been explored to a major extent. This review presents novel insights into the degradation mechanisms under anaerobic conditions and presents a detailed description and interconnection between them. BTEX degradation can follow four activation mechanisms: hydroxylation, carboxylation, methylation, and fumarate addition. Hydroxylation is one of the mechanisms that explains the transformation of benzene into phenol, toluene into benzyl alcohol or p-cresol, and ethylbenzene into 1-phenylethanol. Carboxylation to benzoate is thought to be the primary mechanism of degradation for benzene. Despite being poorly understood, benzene methylation has been also reported. Moreover, fumarate addition is the most widely reported mechanism, present in toluene, ethylbenzene, and xylene degradation. Further research efforts are required to better elucidate new and current alternative catabolic pathways. Likewise, a comprehensive analysis of the enzymes involved as well as the development of advance tools such as omic tools can reveal bottlenecks degradation steps and create more effective on-site strategies to address BTEX pollution.
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Affiliation(s)
- Diego A Hernández-Ospina
- Department of Civil Engineering, Lassonde School of Engineering, York University, North York, Toronto, Ontario, Canada, M3J 1P3
| | - Carlos S Osorio-González
- Department of Civil Engineering, Lassonde School of Engineering, York University, North York, Toronto, Ontario, Canada, M3J 1P3
| | - Saba Miri
- Department of Civil Engineering, Lassonde School of Engineering, York University, North York, Toronto, Ontario, Canada, M3J 1P3
| | - Satinder Kaur Brar
- Department of Civil Engineering, Lassonde School of Engineering, York University, North York, Toronto, Ontario, Canada, M3J 1P3.
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5
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Cheng Y, Zhang K, Huang K, Zhang H. Meta-Analysis and Machine Learning Models for Anaerobic Biodegradation Rates of Organic Contaminants in Sediments and Sludge. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:12976-12988. [PMID: 38988037 DOI: 10.1021/acs.est.4c01033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/12/2024]
Abstract
Anaerobic biodegradation rates (half-lives) of organic chemicals are pivotal for environmental risk assessment and remediation. Traditional experimental evaluation, constrained by prolonged, oxygen-free conditions, struggles to keep pace with emerging contaminants. Data-driven machine learning (ML) models serve as promising complements. However, reported quantitative structure-biodegradation relationships or ML models on anaerobic biodegradation are mostly based on small data sets (<100 records) and neglect experimental conditions, usually achieving compromised predictions. This work aimed to develop ML models for predicting the biodegradation half-lives of organic pollutants in anaerobic environments (i.e., sediment/soil and sludge). Focusing on important features of both chemicals and experimental conditions, we first curated two data sets, one for sediment/soil (SED) and the other for sludge (SLD), covering 978 records for 206 chemicals from the literature, and then conducted a meta-analysis. Next, we built a binary classification (half-life of 30 days as the cutoff) model with an accuracy of 81% and a regression model with R2 of 0.56 for SED based on LightGBM (80% and 0.31 for SLD based on Extra tree, respectively). The model interpretations underscored the significance of experimental conditions (e.g., temperature and inoculum dosage), as evidenced by their high feature importance, and the models were found to correctly capture the effects of chemical substructures, for example, branched structures and aromatic rings prolonged half-lives while methyl group and ortho-substitution on rings shortened half-lives. The applicability domains of the models were also defined, resulting in reasonable prediction for the half-lives of 41% (SED) or 67% (SLD) of over 4000 persistent, bioaccumulative, and toxic chemicals. Overall, this study pioneers ML models for predicting the anaerobic degradation half-lives, offering valuable support for future evaluation and implementation of chemical anaerobic biodegradation.
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Affiliation(s)
- Yushu Cheng
- Department of Civil and Environmental Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Kai Zhang
- Department of Civil and Environmental Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Kuan Huang
- Department of Civil and Environmental Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Huichun Zhang
- Department of Civil and Environmental Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
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6
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Shi K, Liang B, Cheng HY, Wang HC, Liu WZ, Li ZL, Han JL, Gao SH, Wang AJ. Regulating microbial redox reactions towards enhanced removal of refractory organic nitrogen from wastewater. WATER RESEARCH 2024; 258:121778. [PMID: 38795549 DOI: 10.1016/j.watres.2024.121778] [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: 12/11/2023] [Revised: 05/10/2024] [Accepted: 05/12/2024] [Indexed: 05/28/2024]
Abstract
Biotechnology for wastewater treatment is mainstream and effective depending upon microbial redox reactions to eliminate diverse contaminants and ensure aquatic ecological health. However, refractory organic nitrogen compounds (RONCs, e.g., nitro-, azo-, amide-, and N-heterocyclic compounds) with complex structures and high toxicity inhibit microbial metabolic activity and limit the transformation of organic nitrogen to inorganic nitrogen. This will eventually result in non-compliance with nitrogen discharge standards. Numerous efforts suggested that applying exogenous electron donors or acceptors, such as solid electrodes (electrostimulation) and limited oxygen (micro-aeration), could potentially regulate microbial redox reactions and catabolic pathways, and facilitate the biotransformation of RONCs. This review provides comprehensive insights into the microbial regulation mechanisms and applications of electrostimulation and micro-aeration strategies to accelerate the biotransformation of RONCs to organic amine (amination) and inorganic ammonia (ammonification), respectively. Furthermore, a promising approach involving in-situ hybrid anaerobic biological units, coupled with electrostimulation and micro-aeration, is proposed towards engineering applications. Finally, employing cutting-edge methods including multi-omics analysis, data science driven machine learning, technology-economic analysis, and life-cycle assessment would contribute to optimizing the process design and engineering implementation. This review offers a fundamental understanding and inspiration for novel research in the enhanced biotechnology towards RONCs elimination.
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Affiliation(s)
- Ke Shi
- State Key Laboratory of Urban Water Resource and Environment, School of Civil & Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, China
| | - Bin Liang
- State Key Laboratory of Urban Water Resource and Environment, School of Civil & Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, China.
| | - Hao-Yi Cheng
- State Key Laboratory of Urban Water Resource and Environment, School of Civil & Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, China
| | - Hong-Cheng Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Civil & Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, China
| | - Wen-Zong Liu
- State Key Laboratory of Urban Water Resource and Environment, School of Civil & Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, China
| | - Zhi-Ling Li
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Jing-Long Han
- State Key Laboratory of Urban Water Resource and Environment, School of Civil & Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, China
| | - Shu-Hong Gao
- State Key Laboratory of Urban Water Resource and Environment, School of Civil & Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, China
| | - Ai-Jie Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Civil & Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, China.
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7
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Casabella-Font O, Riva M, Balcázar JL, Radjenovic J, Pijuan M. Distinctive effects of graphene oxide and reduced graphene oxide on methane production kinetics and pharmaceuticals removal in anaerobic reactors. BIORESOURCE TECHNOLOGY 2024; 403:130849. [PMID: 38759894 DOI: 10.1016/j.biortech.2024.130849] [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: 03/15/2024] [Revised: 05/13/2024] [Accepted: 05/14/2024] [Indexed: 05/19/2024]
Abstract
Graphene oxide (GO) addition to anaerobic digestion has been suggested to enhance direct electron transfer. The impact of GO (0.075 g GO g-1 VS) and biologically and hydrothermally reduced GO (bio-rGO and h-rGO, respectively) on the methane production kinetics and removal of 12 pharmaceuticals was assessed in Fed-batch reactors. A decrease of 15 % in methane production was observed in the tests with GO addition compared with the control and the h-rGO. However, bio-rGO and h-rGO substantially increased the methane production rate compared to the control tests (+40 %), in the third fed-batch test. Removal of pharmaceuticals was enhanced only during the bio-reduction of GO (1st fed-batch test), whereas once the GO was bio-reduced, it followed a similar trend in the control and h-rGO tests. The addition of GO can enhance the methane production rate and, therefore, reduce the anaerobic treatment time.
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Affiliation(s)
- Oriol Casabella-Font
- Catalan Institute for Water Research (ICRA), C. Emili Grahit 101, 17003 Girona, Spain; Universitat de Girona, Girona, Spain.
| | - Massimiliano Riva
- Catalan Institute for Water Research (ICRA), C. Emili Grahit 101, 17003 Girona, Spain; University of Insubria, Como, Italy
| | - Jose Luis Balcázar
- Catalan Institute for Water Research (ICRA), C. Emili Grahit 101, 17003 Girona, Spain; Universitat de Girona, Girona, Spain
| | - Jelena Radjenovic
- Catalan Institute for Water Research (ICRA), C. Emili Grahit 101, 17003 Girona, Spain; Catalan Institution for Research and Advanced Studies (ICREA), Passeig Lluís Companys 23, 08010, Barcelona, Spain
| | - Maite Pijuan
- Catalan Institute for Water Research (ICRA), C. Emili Grahit 101, 17003 Girona, Spain; Universitat de Girona, Girona, Spain.
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8
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Branco RHR, Meulepas RJW, Sekar P, van Veelen HPJ, Rijnaarts HHM, Sutton NB. Biostimulation with oxygen and electron donors supports micropollutant biodegradation in an experimentally simulated nitrate-reducing aquifer. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 928:172339. [PMID: 38608893 DOI: 10.1016/j.scitotenv.2024.172339] [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: 03/16/2024] [Accepted: 04/07/2024] [Indexed: 04/14/2024]
Abstract
The availability of suitable electron donors and acceptors limits micropollutant natural attenuation in oligotrophic groundwater. This study investigated how electron donors with different biodegradability (humics, dextran, acetate, and ammonium), and different oxygen concentrations affect the biodegradation of 15 micropollutants (initial concentration of each micropollutant = 50 μg/L) in simulated nitrate reducing aquifers. Tests mimicking nitrate reducing field conditions showed no micropollutant biodegradation, even with electron donor amendment. However, 2,4-dichlorophenoxyacetic acid and mecoprop were biodegraded under (micro)aerobic conditions with and without electron donor addition. The highest 2,4-dichlorophenoxyacetic acid and mecoprop biodegradation rates and removal efficiencies were obtained under fully aerobic conditions with amendment of an easily biodegradable electron donor. Under microaerobic conditions, however, amendment with easily biodegradable dissolved organic carbon (DOC) inhibited micropollutant biodegradation due to competition between micropollutants and DOC for the limited oxygen available. Microbial community composition was dictated by electron acceptor availability and electron donor amendment, not by micropollutant biodegradation. Low microbial community richness and diversity led to the absence of biodegradation of the other 13 micropollutants (such as bentazon, chloridazon, and carbamazepine). Finally, adaptation and potential growth of biofilms interactively determined the location of the micropollutant removal zone relative to the point of amendment. This study provides new insight on how to stimulate in situ micropollutant biodegradation to remediate oligotrophic groundwaters as well as possible limitations of this process.
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Affiliation(s)
- Rita H R Branco
- Environmental Technology, Wageningen University & Research, P.O. Box 47, 6700 AA Wageningen, the Netherlands; Wetsus, European Centre of Excellence for Sustainable Water Technology, P.O. Box 1113, 8900 CC Leeuwarden, the Netherlands
| | - Roel J W Meulepas
- Wetsus, European Centre of Excellence for Sustainable Water Technology, P.O. Box 1113, 8900 CC Leeuwarden, the Netherlands
| | - Priyadharshini Sekar
- Environmental Technology, Wageningen University & Research, P.O. Box 47, 6700 AA Wageningen, the Netherlands; Wetsus, European Centre of Excellence for Sustainable Water Technology, P.O. Box 1113, 8900 CC Leeuwarden, the Netherlands
| | - H Pieter J van Veelen
- Wetsus, European Centre of Excellence for Sustainable Water Technology, P.O. Box 1113, 8900 CC Leeuwarden, the Netherlands
| | - Huub H M Rijnaarts
- Environmental Technology, Wageningen University & Research, P.O. Box 47, 6700 AA Wageningen, the Netherlands
| | - Nora B Sutton
- Environmental Technology, Wageningen University & Research, P.O. Box 47, 6700 AA Wageningen, the Netherlands.
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9
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Carneiro RB, Gomes GM, Camargo FP, Zaiat M, Santos-Neto ÁJ. Anaerobic co-metabolic biodegradation of pharmaceuticals and personal care products driven by glycerol fermentation. CHEMOSPHERE 2024; 357:142006. [PMID: 38621493 DOI: 10.1016/j.chemosphere.2024.142006] [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: 12/26/2023] [Revised: 04/08/2024] [Accepted: 04/10/2024] [Indexed: 04/17/2024]
Abstract
Anaerobic digestion in two sequential phases, acidogenesis and methanogenesis, has been shown to be beneficial for enhancing the biomethane generation from wastewater. In this work, the application of glycerol (GOH) as a fermentation co-substrate during the wastewater treatment was evaluated on the biodegradation of different pharmaceuticals and personal care products (PPCPs). GOH co-digestion during acidogenesis led to a significant increase in the biodegradation of acetaminophen (from 78 to 89%), ciprofloxacin (from 25 to 46%), naproxen (from 73 to 86%), diclofenac (from 36 to 48%), ibuprofen (from 65 to 88%), metoprolol (from 45 to 59%), methylparaben (from 64 to 78%) and propylparaben (from 68 to 74%). The heterotrophic co-metabolism of PPCPs driven by glycerol was confirmed by the biodegradation kinetics, in which kbio (biodegradation kinetics constant) values increased from 0.18 to 2.11 to 0.27-3.60 L g-1-VSS d-1, for the operational phases without and with GOH, respectively. The assessment of metabolic pathways in each phase revealed that the prevalence of aromatic compounds degradation, metabolism of xenobiotics by cytochrome P450, and benzoate degradation routes during acidogenesis are key factors for the enzymatic mechanisms linked to the PPCPs co-metabolism. The phase separation of anaerobic digestion was effective in the PPCPs biodegradation, and the co-fermentation of glycerol provided an increase in the generation potential of biomethane in the system (energetic potential of 5.0 and 6.3 kJ g-1-CODremoved, without and with GOH, respectively). This study showed evidence that glycerol co-fermentation can exert a synergistic effect on the PPCPs removal during anaerobic digestion mediated by heterotrophic co-metabolism.
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Affiliation(s)
- Rodrigo B Carneiro
- São Carlos Institute of Chemistry, University of São Paulo (USP), 400, Trabalhador São-Carlense Ave., São Carlos, São Paulo, 13566-590, Brazil; Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA), Severo Ochoa Excellence Center, Spanish Council of Scientific Research (CSIC), Jordi Girona 18-26, E-08034, Barcelona, Spain.
| | - Gisele M Gomes
- São Carlos School of Engineering, University of São Paulo (USP), 1100, João Dagnone Ave., Santa Angelina, 13563-120, São Carlos, São Paulo, Brazil.
| | - Franciele P Camargo
- Bioenergy Research Institute (IPBEN), UNESP- São Paulo State University, Rio Claro, SP, 13500-230, Brazil.
| | - Marcelo Zaiat
- São Carlos School of Engineering, University of São Paulo (USP), 1100, João Dagnone Ave., Santa Angelina, 13563-120, São Carlos, São Paulo, Brazil.
| | - Álvaro J Santos-Neto
- São Carlos Institute of Chemistry, University of São Paulo (USP), 400, Trabalhador São-Carlense Ave., São Carlos, São Paulo, 13566-590, Brazil.
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10
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Guo Y, Askari N, Smets I, Appels L. A review on co-metabolic degradation of organic micropollutants during anaerobic digestion: Linkages between functional groups and digestion stages. WATER RESEARCH 2024; 256:121598. [PMID: 38663209 DOI: 10.1016/j.watres.2024.121598] [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: 08/18/2023] [Revised: 03/13/2024] [Accepted: 04/09/2024] [Indexed: 05/12/2024]
Abstract
The emerging presence of organic micropollutants (OMPs) in water bodies produced by human activities is a source of growing concern due to their environmental and health issues. Biodegradation is a widely employed treatment method for OMPs in wastewater owing to its high efficiency and low operational cost. Compared to aerobic degradation, anaerobic degradation has numerous advantages, including energy efficiency and superior performance for certain recalcitrant compounds. Nonetheless, the low influent concentrations of OMPs in wastewater treatment plants (WWTPs) and their toxicity make it difficult to support the growth of microorganisms. Therefore, co-metabolism is a promising mechanism for OMP biodegradation in which co-substrates are added as carbon and energy sources and stimulate increased metabolic activity. Functional microorganisms and enzymes exhibit significant variations at each stage of anaerobic digestion affecting the environment for the degradation of OMPs with different structural properties, as these factors substantially influence OMPs' biodegradability and transformation pathways. However, there is a paucity of literature reviews that explicate the correlations between OMPs' chemical structure and specific metabolic conditions. This study provides a comprehensive review of the co-metabolic processes which are favored by each stage of anaerobic digestion and attempts to link various functional groups to their favorable degradation pathways. Furthermore, potential co-metabolic processes and strategies that can enhance co-digestion are also identified, providing directions for future research.
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Affiliation(s)
- Yutong Guo
- KU Leuven, Department of Chemical Engineering, Chemical and Biochemical Reactor Engineering and Safety (CREaS) Campus De Nayer, Jan Pieter De Nayerlaan 5, Sint-Katelijne-Waver 2860, Belgium
| | - Najmeh Askari
- KU Leuven, Department of Chemical Engineering, Chemical and Biochemical Reactor Engineering and Safety (CREaS) Campus De Nayer, Jan Pieter De Nayerlaan 5, Sint-Katelijne-Waver 2860, Belgium
| | - Ilse Smets
- KU Leuven, Department of Chemical Engineering, Chemical and Biochemical Reactor Engineering and Safety (CREaS), Celestijnenlaan 200F box 2424, Heverlee 3001, Belgium
| | - Lise Appels
- KU Leuven, Department of Chemical Engineering, Chemical and Biochemical Reactor Engineering and Safety (CREaS) Campus De Nayer, Jan Pieter De Nayerlaan 5, Sint-Katelijne-Waver 2860, Belgium.
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11
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Ni S, Lv W, Ji Z, Wang K, Mei Y, Li Y. Progress of Crude Oil Gasification Technology Assisted by Microorganisms in Reservoirs. Microorganisms 2024; 12:702. [PMID: 38674646 PMCID: PMC11051786 DOI: 10.3390/microorganisms12040702] [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: 02/22/2024] [Revised: 03/17/2024] [Accepted: 03/26/2024] [Indexed: 04/28/2024] Open
Abstract
Crude oil gasification bacteria, including fermenting bacteria, hydrocarbon-oxidizing bacteria, reducing bacteria, and methanogenic bacteria, participate in multi-step reactions involving initial activation, intermediate metabolism, and the methanogenesis of crude oil hydrocarbons. These bacteria degrade crude oil into smaller molecules such as hydrogen, carbon dioxide, acetic acid, and formic acid. Ultimately, they convert it into methane, which can be utilized or stored as a strategic resource. However, the current challenges in crude oil gasification include long production cycles and low efficiency. This paper provides a summary of the microbial flora involved in crude oil gasification, the gasification metabolism pathways within reservoirs, and other relevant information. It specifically focuses on analyzing the factors that affect the efficiency of crude oil gasification metabolism and proposes suggestions for improving this efficiency. These studies deepen our understanding of the potential of reservoir ecosystems and provide valuable insights for future reservoir development and management.
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Affiliation(s)
- Shumin Ni
- University of Chinese Academy of Sciences, Beijing 100049, China; (S.N.); (K.W.); (Y.M.); (Y.L.)
- Institute of Porous Flow & Fluid Mechanics, Chinese Academy of Sciences, Langfang 065007, China;
| | - Weifeng Lv
- Institute of Porous Flow & Fluid Mechanics, Chinese Academy of Sciences, Langfang 065007, China;
- State Key Laboratory of Enhanced Oil Recovery, Research Institute of Petroleum Exploration and Development, CNPC, Beijing 100083, China
| | - Zemin Ji
- Institute of Porous Flow & Fluid Mechanics, Chinese Academy of Sciences, Langfang 065007, China;
| | - Kai Wang
- University of Chinese Academy of Sciences, Beijing 100049, China; (S.N.); (K.W.); (Y.M.); (Y.L.)
- Institute of Porous Flow & Fluid Mechanics, Chinese Academy of Sciences, Langfang 065007, China;
| | - Yuhao Mei
- University of Chinese Academy of Sciences, Beijing 100049, China; (S.N.); (K.W.); (Y.M.); (Y.L.)
- Institute of Porous Flow & Fluid Mechanics, Chinese Academy of Sciences, Langfang 065007, China;
| | - Yushu Li
- University of Chinese Academy of Sciences, Beijing 100049, China; (S.N.); (K.W.); (Y.M.); (Y.L.)
- Institute of Porous Flow & Fluid Mechanics, Chinese Academy of Sciences, Langfang 065007, China;
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12
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Wani AK, Ul Gani Mir T, Akhtar N, Chopra C, Bashir SM, Hassan S, Kumar V, Singh R, Américo-Pinheiro JHP. Algae-Mediated Removal of Prevalent Genotoxic Antibiotics: Molecular Perspective on Algae-Bacteria Consortia and Bioreactor-Based Strategies. Curr Microbiol 2024; 81:112. [PMID: 38472428 DOI: 10.1007/s00284-024-03631-x] [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: 11/14/2023] [Accepted: 01/31/2024] [Indexed: 03/14/2024]
Abstract
Antibiotic pollution poses a potential risk of genotoxicity, as antibiotics released into the environment can induce DNA damage and mutagenesis in various organisms. This pollution, stemming from pharmaceutical manufacturing, agriculture, and improper disposal, can disrupt aquatic ecosystems and potentially impact human health through the consumption of contaminated water and food. The removal of genotoxic antibiotics using algae-mediated approaches has gained considerable attention due to its potential for mitigating the environmental and health risks associated with these compounds. The paper provides an in-depth examination of the molecular aspects concerning algae and bioreactor-driven methodologies utilized for the elimination of deleterious antibiotics. The molecular analysis encompasses diverse facets, encompassing the discernment and profiling of algae species proficient in antibiotic degradation, the explication of enzymatic degradation pathways, and the refinement of bioreactor configurations to augment removal efficacy. Emphasizing the significance of investigating algal approaches for mitigating antibiotic pollution, this paper underscores their potential as a sustainable solution, safeguarding both the environment and human health.
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Affiliation(s)
- Atif Khurshid Wani
- School of Bioengineering and Biosciences, Lovely Professional University, Jalandhar, Punjab, 144411, India
| | - Tahir Ul Gani Mir
- School of Bioengineering and Biosciences, Lovely Professional University, Jalandhar, Punjab, 144411, India
| | - Nahid Akhtar
- School of Bioengineering and Biosciences, Lovely Professional University, Jalandhar, Punjab, 144411, India
| | - Chirag Chopra
- School of Bioengineering and Biosciences, Lovely Professional University, Jalandhar, Punjab, 144411, India
| | - Showkeen Muzamil Bashir
- Biochemistry & Molecular Biology Lab, Division of Veterinary Biochemistry, Faculty of Veterinary Sciences and Animal Husbandry, Sher-e-Kashmir University of Agricultural Sciences and Technology, Srinagar, Jammu and Kashmir, 190006, India
| | - Shabir Hassan
- Department of Biology, College of Arts and Sciences, Khalifa University, Main Campus, Abu Dhabi, United Arab Emirates
| | - Vineet Kumar
- Department of Microbiology, School of Life Sciences, Central University of Rajasthan, NH-8, Bandarsindri, Kishangarh, Ajmer, Rajasthan, 305817, India
| | - Reena Singh
- School of Bioengineering and Biosciences, Lovely Professional University, Jalandhar, Punjab, 144411, India
| | - Juliana Heloisa Pinê Américo-Pinheiro
- Department of Forest Science, Soils and Environment, School of Agronomic Sciences, São Paulo State University (UNESP), Ave. Universitária, 3780, Botucatu, São Paulo, 18610-034, Brazil.
- Brazil University, Street Carolina Fonseca, 584, São Paulo, São Paulo, 08230-030, Brazil.
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13
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Wang L, Lei Z, Yun S, Yang X, Chen R. Quantitative structure-biotransformation relationships of organic micropollutants in aerobic and anaerobic wastewater treatments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169170. [PMID: 38072270 DOI: 10.1016/j.scitotenv.2023.169170] [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: 07/09/2023] [Revised: 11/05/2023] [Accepted: 12/05/2023] [Indexed: 12/17/2023]
Abstract
Biotransformation is one of the dominant processes to remove organic micropollutants (OMPs) in wastewater treatment. However, studies on the role of molecular structure in determining the biotransformation rates of OMPs are limited. We evaluated the biotransformation of 14 OMPs belonging to different chemical classes under aerobic and anaerobic conditions, and then explored the quantitative structure-biotransformation relationships (QSBRs) of the OMPs based on biotransformation rates using valid molecular structure descriptors (electrical and physicochemical parameters). Pseudo-first-order kinetic modeling was used to fit the biotransformation rate, and only 2 of the 14 OMPs showed that the biotransformation rate constant (kbio) values were higher under anaerobic conditions than aerobic conditions, indicating that aerobic conditions were more favorable for biotransformation of most OMPs. QSBRs infer that the electrophilicity index (ω) is a reliable predictor for OMPs biotransformation under aerobic conditions. ω corresponds to the interaction between OMPs and microbial enzyme active sites, this process is the rate-limiting step of biotransformation. However, under anaerobic conditions the QSBR based on ω was not significant, indicating that specific functional groups may be more critical than electrophilicity. In conclusion, QSBRs can serve as alternative tools for the prediction of the biotransformation of OMPs and provide further insights into the factors that influence biotransformation.
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Affiliation(s)
- Lianxu Wang
- Key Lab of Environmental Engineering, Shaanxi Province, Xi'an University of Architecture and Technology, No.13 Yanta Road, Xi'an 710055, PR China
| | - Zhen Lei
- Key Lab of Environmental Engineering, Shaanxi Province, Xi'an University of Architecture and Technology, No.13 Yanta Road, Xi'an 710055, PR China
| | - Sining Yun
- Key Lab of Environmental Engineering, Shaanxi Province, Xi'an University of Architecture and Technology, No.13 Yanta Road, Xi'an 710055, PR China
| | - Xiaohuan Yang
- Key Lab of Environmental Engineering, Shaanxi Province, Xi'an University of Architecture and Technology, No.13 Yanta Road, Xi'an 710055, PR China
| | - Rong Chen
- Key Lab of Environmental Engineering, Shaanxi Province, Xi'an University of Architecture and Technology, No.13 Yanta Road, Xi'an 710055, PR China; International S&T Cooperation Center for Urban Alternative Water Resources Development, Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, No.13 Yanta Road, Xi'an 710055, PR China.
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14
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Pang Q, Xie L, Shen C, Zhu X, Wang L, Ni L, Peng F, Yu J, Wang L, He F. Triclosan disturbs nitrogen removal in constructed wetlands: Responses of microbial structure and functions. ENVIRONMENTAL RESEARCH 2024; 243:117847. [PMID: 38065393 DOI: 10.1016/j.envres.2023.117847] [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: 08/06/2023] [Revised: 11/14/2023] [Accepted: 11/30/2023] [Indexed: 02/06/2024]
Abstract
This study investigated the influence of wetland types (vertical and tidal flow constructed wetlands [CWs] [VFCW and TFCW, respectively]) and concentrations of triclosan (TCS) on the removal of pollutants (TCS and nitrogen) and microbial characteristics. The efficiency of TCS removal was significantly higher with 5 μg/L TCS (Phase B) than with 30 μg/L (Phase C) in the two CWs. The efficiencies of removal of NH4+-N and NO3--N were significantly inhibited in Phase C. Compared with the VFCW, the TFCW removed more NH4+-N at the same concentration of TCS, whereas less NO3--N was removed, and it even accumulated. Saccharimondales, an important functional genus with the highest abundance and more node connections with other genera, had a sharp decrease in relative abundance as the increasing concentrations of TCS of the two CWs conformed with its relative abundance and significantly negatively correlated with the concentration of TCS. Differentiated Roseobacter_Clade_CHAB-I-5_Lineage and Sphaerotilus were enriched in the VFCW and TFCW, respectively. The abundance of enzymes that catalyzed nitritation was significantly inhibited by TCS, whereas nitrate reductase (EC 1.7.99.4) catalyzed both denitrification and dissimilatory nitrate reduction to ammonium (DNRA), and nitrite reductase (NADH) (EC 1.7.1.15) that catalyzed DNRA comprised a larger proportion in the two CWs. Simultaneously, the abundances of two enzymes were higher in the TFCW than in the VFCW. The network analysis indicated that the main genera were promoted more by TCS in the VFCW, while inhibited in the TFCW. Moreover, the concentrations of nitrogen (NH4+-N, NO3--N, and TN) significantly positively correlated with TCS-resistant bacteria, and negatively correlated with most nitrogen-transforming bacteria with species that varied between the VFCW and TFCW. The results of this study provide a reference for the molecular biological mechanism of the simultaneous removal of nitrogen and TCS in the CWs.
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Affiliation(s)
- Qingqing Pang
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing, 210042, China
| | - Lei Xie
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing, 210042, China; Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing, 210044, China
| | - Caofeng Shen
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing, 210042, China; College of Environment, Hohai University, Nanjing, 210098, China
| | - Xiang Zhu
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing, 210042, China; College of Environment, Hohai University, Nanjing, 210098, China
| | - Longmian Wang
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing, 210042, China.
| | - Lixiao Ni
- College of Environment, Hohai University, Nanjing, 210098, China
| | - Fuquan Peng
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing, 210042, China
| | - Jianghua Yu
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing, 210044, China
| | - Ling Wang
- Xinjiang Tianxi Environmental Protection Technology Co., LTD., Urumqi, 830000, China
| | - Fei He
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing, 210042, China.
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15
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Lin M, Pan C, Qian C, Tang F, Zhao S, Guo J, Zhang Y, Song J, Rittmann BE. Core taxa, co-occurrence pattern, diversity, and metabolic pathways contributing to robust anaerobic biodegradation of chlorophenol. ENVIRONMENTAL RESEARCH 2024; 241:117591. [PMID: 37926226 DOI: 10.1016/j.envres.2023.117591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 10/28/2023] [Accepted: 11/02/2023] [Indexed: 11/07/2023]
Abstract
It is hard to achieve robustness in anaerobic biodegradation of trichlorophenol (TCP). We hypothesized that specific combinations of environmental factors determine phylogenetic diversity and play important roles in the decomposition and stability of TCP-biodegrading bacteria. The anaerobic bioreactor was operated at 35 °C (H condition) or 30 °C (L condition) and mainly fed with TCP (from 28 μM to 180 μM) and organic material. Metagenome sequencing was combined with 16S rRNA gene amplicon sequencing for the microbial community analysis. The results exhibited that the property of robustness occurred in specific conditions. The corresponding co-occurrence and diversity patterns suggest high collectivization, degree and evenness for robust communities. Two types of core functional taxa were recognized: dechlorinators (unclassified Anaerolineae, Thermanaerothrix and Desulfovibrio) and ring-opening members (unclassified Proteobacteria, Methanosarcina, Methanoperedens, and Rubrobacter). The deterministic process of the expansion of niche of syntrophic bacteria at higher temperatures was confirmed. The reductive and hydrolytic dechlorination mechanisms jointly lead to C-Cl bond cleavage. H ultimately adapted to the stress of high TCP loading, with more abundant ring-opening enzyme (EC 3.1.1.45, ∼55%) and hydrolytic dechlorinase (EC 3.8.1.5, 26.5%) genes than L (∼47%, 10.5%). The functional structure (based on KEGG) in H was highly stable despite the high loading of TCP (up to 60 μM), but not in L. Furthermore, an unknown taxon with multiple functions (dechlorinating and ring-opening) was found based on genetic sequencing; its functional contribution of EC 3.8.1.5 in H (26.5%) was higher than that in L (10.5%), and it possessed a new metabolic pathway for biodegradation of halogenated aromatic compounds. This new finding is supplementary to the robust mechanisms underlying organic chlorine biodegradation, which can be used to support the engineering, regulation, and design of synthetic microbiomes.
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Affiliation(s)
- Ming Lin
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai, 200234, PR China; Yangtze River Delta Urban Wetland Ecosystem National Field Scientific Observation and Research Station, Shanghai, 200234, PR China
| | - Chenhui Pan
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai, 200234, PR China; Yangtze River Delta Urban Wetland Ecosystem National Field Scientific Observation and Research Station, Shanghai, 200234, PR China
| | - Chenyi Qian
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai, 200234, PR China; Yangtze River Delta Urban Wetland Ecosystem National Field Scientific Observation and Research Station, Shanghai, 200234, PR China
| | - Fei Tang
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai, 200234, PR China; Yangtze River Delta Urban Wetland Ecosystem National Field Scientific Observation and Research Station, Shanghai, 200234, PR China
| | - Siwen Zhao
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai, 200234, PR China; Yangtze River Delta Urban Wetland Ecosystem National Field Scientific Observation and Research Station, Shanghai, 200234, PR China
| | - Jun Guo
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai, 200234, PR China; Department of Environmental Science and Engineering, Fudan University, Shanghai, 200238, PR China
| | - Yongming Zhang
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai, 200234, PR China; Yangtze River Delta Urban Wetland Ecosystem National Field Scientific Observation and Research Station, Shanghai, 200234, PR China
| | - Jiaxiu Song
- School of Environmental and Geographical Sciences, Shanghai Normal University, Shanghai, 200234, PR China; Yangtze River Delta Urban Wetland Ecosystem National Field Scientific Observation and Research Station, Shanghai, 200234, PR China.
| | - Bruce E Rittmann
- Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, 85287-5701, USA
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16
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Zhang Y, Zhou A, Xu J, Ouyang Z, Han L, Liu Y. Using compound-specific isotope analysis to identify the mechanism of acetochlor degradation during oxygenation of hyporheic zone sediment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 340:122855. [PMID: 37923051 DOI: 10.1016/j.envpol.2023.122855] [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: 06/26/2023] [Revised: 10/30/2023] [Accepted: 10/31/2023] [Indexed: 11/07/2023]
Abstract
Biodegradation is recognized as the main pathway for acetochlor attenuation in aquatic environments. However, the potential abiotic degradation of acetochlor by hydroxyl radicals (•OH) generated during oxygenation of hyporheic zone sediments has not been investigated. This study aims to examine the production of •OH during oxygenation of hyporheic zone sediments and its effects on acetochlor attenuation. A significant decrease of acetochlor, ranging from 77.9% to 100%, was observed in the water-sediment systems with extensive •OH production. The primary sources of •OH production were found to be the oxidation of Fe(II) and reduced humic acids. Furthermore, a •OH quenching experiment suggests that •OH driven oxidation is the dominant pathway for acetochlor attenuation. Carbon isotope fractionation of acetochlor degradation during oxygenation of sediments (εbulk,C ranged from -1.5‰ to -0.5 ± 0.3‰) was close to that during acetochlor degradation by •OH in a H2O2-Fe3O4 Fenton system (εbulk,C = -0.5 ± 0.1‰), but significantly smaller than that during acetochlor biodegradation (εbulk,C = -5.8 ± 0.9‰). Compound-specific isotope analysis (CSIA) further suggests that •OH produced by sediment oxygenation plays a critical role in acetochlor attenuation in aquatic environments. Results of calculated apparent kinetic isotope effect of carbon (AKIEC) and transformation products indicate that SN1 and SN2-type nucleophilic substitution are the first steps in acetochlor attenuation through •OH driven oxidation (AKIEC = 1.007 ± 0.001) and aerobic biodegradation (AKIEC = 1.088 ± 0.013), respectively. Our findings highlight the potential of CSIA to assess the acetochlor degradation in water-sediment system, which can help to elucidate the fate of herbicide in aquatic environments.
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Affiliation(s)
- Yuanzheng Zhang
- Hubei Key Laboratory of Yangtze River Basin Environmental Aquatic Science, School of Environmental Studies & State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, 430074, Wuhan, PR China; State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of China, 210042, Nanjing, PR China
| | - Aiguo Zhou
- Hubei Key Laboratory of Yangtze River Basin Environmental Aquatic Science, School of Environmental Studies & State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, 430074, Wuhan, PR China
| | - Jian Xu
- State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of China, 210042, Nanjing, PR China
| | - Ziyu Ouyang
- Hubei Key Laboratory of Yangtze River Basin Environmental Aquatic Science, School of Environmental Studies & State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, 430074, Wuhan, PR China
| | - Li Han
- Hubei Institute of Food Quality and Safety Supervision and Inspection, 430074, Wuhan, PR China
| | - Yunde Liu
- Hubei Key Laboratory of Yangtze River Basin Environmental Aquatic Science, School of Environmental Studies & State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, 430074, Wuhan, PR China.
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17
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Branco RHR, Meulepas RJW, Kadlecová K, Cardoso MFS, Rijnaarts HHM, Sutton NB. Effect of dissolved organic carbon on micropollutant biodegradation by aquifer and soil microbial communities. CHEMOSPHERE 2024; 347:140644. [PMID: 37952821 DOI: 10.1016/j.chemosphere.2023.140644] [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: 06/09/2023] [Revised: 09/11/2023] [Accepted: 11/06/2023] [Indexed: 11/14/2023]
Abstract
Groundwater, a major source of drinking water worldwide, is often contaminated with micropollutants. Although microbial communities in aquifers and soils have the capability to biodegrade some micropollutants, this process is limited in situ. Biostimulation with dissolved organic carbon (DOC) is known to promote micropollutant biodegradation, but the role of DOC biodegradability is still poorly understood. This study investigated how three DOC types with different biodegradability (humics, dextran and acetate) affect the biodegradation of 15 micropollutants by aquifer and soil microbial communities under aerobic and nitrate reducing conditions. Although originating from different environments, both communities were able to biodegrade the same 4 micropollutants under aerobic conditions - 2,4-D, MCPP, chloridazon (CLZ) and chloridazon-desphenyl. However, DOC addition only affected MCPP biodegradation, promoting MCPP biodegradation regardless of DOC biodegradability. Biodegradation of 2,4-D, MCPP and CLZ under aerobic conditions was observed after a lag phase, whose duration differed per compound. 2,4-D was biodegraded first and fully. Aquifer community was able to degrade about half of the initial MCPP concentration (removal efficiency of 49.3 ± 11.7%). CLZ was fully biodegraded by the aquifer community, but not by the soil community, possibly due to substrate competition with organics originating from the inoculum. Therefore, the natural organic carbon present in the inocula and in environmental systems can influence micropollutant biodegradation. Under nitrate reducing conditions micropollutant biodegradation was not observed nor biostimulated by DOC addition. The results also highlight the importance of sufficient exposure time to trigger in situ micropollutant biodegradation.
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Affiliation(s)
- Rita H R Branco
- Environmental Technology, Wageningen University & Research, P.O. Box 47, 6700 AA, Wageningen, the Netherlands; Wetsus, European Centre of Excellence for Sustainable Water Technology, P.O. Box 1113, 8900 CC, Leeuwarden, the Netherlands
| | - Roel J W Meulepas
- Wetsus, European Centre of Excellence for Sustainable Water Technology, P.O. Box 1113, 8900 CC, Leeuwarden, the Netherlands
| | - Kateřina Kadlecová
- Environmental Technology, Wageningen University & Research, P.O. Box 47, 6700 AA, Wageningen, the Netherlands; Wetsus, European Centre of Excellence for Sustainable Water Technology, P.O. Box 1113, 8900 CC, Leeuwarden, the Netherlands
| | - Marta F S Cardoso
- Wetsus, European Centre of Excellence for Sustainable Water Technology, P.O. Box 1113, 8900 CC, Leeuwarden, the Netherlands
| | - Huub H M Rijnaarts
- Environmental Technology, Wageningen University & Research, P.O. Box 47, 6700 AA, Wageningen, the Netherlands
| | - Nora B Sutton
- Environmental Technology, Wageningen University & Research, P.O. Box 47, 6700 AA, Wageningen, the Netherlands.
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18
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Satpati GG, Gupta S, Biswas RK, Choudhury AK, Kim JW, Davoodbasha M. Microalgae mediated bioremediation of polycyclic aromatic hydrocarbons: Strategies, advancement and regulations. CHEMOSPHERE 2023; 344:140337. [PMID: 37797901 DOI: 10.1016/j.chemosphere.2023.140337] [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: 07/27/2023] [Revised: 09/14/2023] [Accepted: 09/28/2023] [Indexed: 10/07/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are pervasive in the atmosphere and are one of the emerging pollutants that cause harmful effects in living systems. There are some natural and anthropogenic sources that can produce PAHs in an uncontrolled way. Several health hazards associated with PAHs like abnormality in the reproductive system, endocrine system as well as immune system have been explained. The mutagenic or carcinogenic effects of hydrocarbons in living systems including algae, vertebrates and invertebrates have been discussed. For controlling PAHs, biodegradation has been suggested as an effective and eco-friendly process. Microalgae-based biosorption and biodegradation resulted in the removal of toxic contaminants. Microalgae both in unialgal form and in consortium (with bacteria or fungi) performed good results in bioaccumulation and biodegradation. In the present review, we highlighted the general information about the PAHs, conventional versus advanced technology for removal. In addition microalgae based removal and toxicity is discussed. Furthermore this work provides an idea on modern scientific applications like genetic and metabolic engineering, nanomaterials-based technologies, artificial neural network (ANN), machine learning (ML) etc. As rapid and effective methods for bioremediation of PAHs. With several pros and cons, biological treatments using microalgae are found to be better for PAH removal than any other conventional technologies.
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Affiliation(s)
- Gour Gopal Satpati
- Department of Botany, Bangabasi Evening College, University of Calcutta, Kolkata- 700009, West Bengal, India.
| | - Shalini Gupta
- University School of Environment and Management, Guru Gobind Singh Indraprastha University, Dwarka, Delhi- 110078, India
| | - Rohan Kr Biswas
- Phycology Lab, Department of Botany, Ramakrishna Mission Vivekananda Centenary College, Rahara, Kolkata-700118, India
| | - Avik Kumar Choudhury
- Phycology Lab, Department of Botany, Ramakrishna Mission Vivekananda Centenary College, Rahara, Kolkata-700118, India
| | - Jung-Wan Kim
- Research Centre for Bio Material and Process Development, Incheon National Univeristy, Republic of Korea; Division of Bioengineering, Incheon National University, Incheon, 22012, Republic of Korea.
| | - MubarakAli Davoodbasha
- Research Centre for Bio Material and Process Development, Incheon National Univeristy, Republic of Korea; Centre for Surface Technology and Applications, Korea Aerospace University, Goyang, 10540, Republic of Korea; School of Life Sciences, B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai, 600048, India.
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19
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Arcila-Saenz J, Hincapié-Mejía G, Londoño-Cañas YA, Peñuela GA. Role of the hydrolytic-acidogenic phase on the removal of bisphenol A and sildenafil during anaerobic treatment. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:1552. [PMID: 38032365 PMCID: PMC10689534 DOI: 10.1007/s10661-023-12009-8] [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: 02/26/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023]
Abstract
This paper presents the main results of the removal of two pharmaceutical and personal care products (PPCPs), bisphenol A (BPA) and sildenafil (SDF), by applying anaerobic biological batch tests. The biomass used was previously acclimatized and the experiment lasted 28 days. The effect of factors such as compound (BPA and SDF), concentration and type of inoculum was assessed, considering the factorial experimental design. The results indicated that evaluated factors did not significantly affect the PPCPs elimination in the evaluated range with a confidence level of 95%. On the other hand, the removal percentages obtained with BPA were mainly related to mechanisms, such as sorption and abiotic reactions. Regarding SDF, biodegradation was the predominant mechanism of removal under the experimental conditions of this study; however, the degradation of SDF was partial, with percentages lower than 43% in the tests with hydrolytic/acidogenic inoculum (H/A) and lower than 41% in the tests with methanogenic inoculum (MET). Finally, these findings indicated that hydrolysis/acidogenesis phase is a main contributor to SDF biodegradation in anaerobic digestion. The study provides a starting point for future research that seeks to improve treatment systems to optimize the removal of pollutants from different water sources.
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Affiliation(s)
- Jennifer Arcila-Saenz
- GDCON Research Group, Faculty of Engineering, University Research Headquarters (SIU), University of Antioquia, Street 70 #, 52-21, Medellín, Colombia.
| | - Gina Hincapié-Mejía
- Environment, Habitat and Sustainability Research Group, University Institution Colegio Mayor de Antioquia, Street 78 # 65 -, 46, Medellín, Colombia
| | - Yudy Andrea Londoño-Cañas
- GDCON Research Group, Faculty of Engineering, University Research Headquarters (SIU), University of Antioquia, Street 70 #, 52-21, Medellín, Colombia
| | - Gustavo A Peñuela
- GDCON Research Group, Faculty of Engineering, University Research Headquarters (SIU), University of Antioquia, Street 70 #, 52-21, Medellín, Colombia
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20
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H R Branco R, Meulepas RJW, van Veelen HPJ, Rijnaarts HHM, Sutton NB. Influence of redox condition and inoculum on micropollutant biodegradation by soil and activated sludge communities. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 897:165233. [PMID: 37394071 DOI: 10.1016/j.scitotenv.2023.165233] [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: 04/26/2023] [Revised: 06/28/2023] [Accepted: 06/28/2023] [Indexed: 07/04/2023]
Abstract
Micropollutant biodegradation is selected by the interplay among environmental conditions and microbial community composition. This study investigated how different electron acceptors, and different inocula with varying microbial diversity, pre-exposed to distinct redox conditions and micropollutants, affect micropollutant biodegradation. Four tested inocula comprised of agricultural soil (Soil), sediment from a ditch in an agricultural field (Ditch), activated sludge from a municipal WWTP (Mun AS), and activated sludge from an industrial WWTP (Ind AS). Removal of 16 micropollutants was investigated for each inoculum under aerobic, nitrate reducing, iron reducing, sulfate reducing, and methanogenic conditions. Micropollutant biodegradation was highest under aerobic conditions with removal of 12 micropollutants. Most micropollutants were biodegraded by Soil (n = 11) and Mun AS inocula (n = 10). A positive correlation was observed between inoculum community richness and the number of different micropollutants a microbial community initially degraded. The redox conditions to which a microbial community had been exposed appeared to positively affect micropollutant biodegradation performance more than pre-exposure to micropollutants. Additionally, depletion of the organic carbon present in the inocula resulted in lower micropollutant biodegradation and overall microbial activities, suggesting that i) an additional carbon source is needed to promote micropollutant biodegradation; and ii) overall microbial activity can be a good indirect indicator for micropollutant biodegradation activity. These results could help to develop novel micropollutant removal strategies.
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Affiliation(s)
- Rita H R Branco
- Environmental Technology, Wageningen University & Research, 47, 6700 AA Wageningen, the Netherlands; Wetsus, European Centre of Excellence for Sustainable Water Technology, 1113, 8900 CC Leeuwarden, the Netherlands
| | - Roel J W Meulepas
- Wetsus, European Centre of Excellence for Sustainable Water Technology, 1113, 8900 CC Leeuwarden, the Netherlands
| | - H Pieter J van Veelen
- Wetsus, European Centre of Excellence for Sustainable Water Technology, 1113, 8900 CC Leeuwarden, the Netherlands
| | - Huub H M Rijnaarts
- Environmental Technology, Wageningen University & Research, 47, 6700 AA Wageningen, the Netherlands
| | - Nora B Sutton
- Environmental Technology, Wageningen University & Research, 47, 6700 AA Wageningen, the Netherlands.
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21
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Bydalek F, Webster G, Barden R, Weightman AJ, Kasprzyk-Hordern B, Wenk J. Microplastic biofilm, associated pathogen and antimicrobial resistance dynamics through a wastewater treatment process incorporating a constructed wetland. WATER RESEARCH 2023; 235:119936. [PMID: 37028211 DOI: 10.1016/j.watres.2023.119936] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 03/05/2023] [Accepted: 04/01/2023] [Indexed: 06/19/2023]
Abstract
Microplastics in wastewater are colonized by biofilms containing pathogens and antimicrobial resistance (AMR) genes that can be exported into receiving water bodies. This study investigated establishment and changes in microplastic-associated biofilm and AMR during a conventional full-scale 2100 population equivalent wastewater treatment process combined with a free water surface polishing constructed wetland. Sequential microplastic colonization experiments were conducted at different stages of the wastewater treatment process, including in raw sewage, treated effluent and the constructed wetland. Two scenarios were tested in which the constructed wetland served as either (i) a polishing step or (ii) as primary recipient of sewage inoculated microplastics. Bacterial 16S rRNA gene sequencing was carried out for qualitative bacterial community analysis. qPCR was applied for quantitative analysis of AMR genes (sul1, ermB, tetW, intiI1), bacterial biomass (16S rRNA) and a human fecal marker (HF183). Microbial diversity on microplastics increased with incubation time. The initial sewage-derived biofilm composition changed more significantly in the wastewater effluent compared to the constructed wetland. Pathogen and AMR load decreased by up to two orders of magnitude after coupled conventional and constructed wetland treatment, while less impact was observed when sewage-inoculated microplastic material was directly transferred into the constructed wetland. Aeromonas, Klebsiella, and Streptococcus were key pathogenic genera correlated with AMR in microplastic-associated biofilms. Despite decreasing trends on human pathogens and AMR load along the treatment process, microplastic-associated biofilms were a considerable potential hotspot for AMR (intI1 gene) and accommodated Cyanobacteria and fish pathogens.
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Affiliation(s)
- Franciszek Bydalek
- Department of Chemical Engineering, University of Bath, Claverton Down, Bath BA2 7AY, UK; Water Innovation and Research Centre (WIRC), University of Bath, Bath BA2 7AY, UK; GW4 NERC CDT in Freshwater Biosciences and Sustainability, Cardiff University, Cardiff CF10 3AX, UK; Microbiomes, Microbes and Informatics Group, Organisms and Environment Division, School of Biosciences, Cardiff University, Cardiff CF10 3AX, UK
| | - Gordon Webster
- Microbiomes, Microbes and Informatics Group, Organisms and Environment Division, School of Biosciences, Cardiff University, Cardiff CF10 3AX, UK
| | | | - Andrew J Weightman
- Microbiomes, Microbes and Informatics Group, Organisms and Environment Division, School of Biosciences, Cardiff University, Cardiff CF10 3AX, UK
| | - Barbara Kasprzyk-Hordern
- Water Innovation and Research Centre (WIRC), University of Bath, Bath BA2 7AY, UK; Department of Chemistry, University of Bath, Bath BA2 7AY, UK
| | - Jannis Wenk
- Department of Chemical Engineering, University of Bath, Claverton Down, Bath BA2 7AY, UK; Water Innovation and Research Centre (WIRC), University of Bath, Bath BA2 7AY, UK.
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22
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Kumari P, Tripathi KM, Awasthi K, Gupta R. Biomass-derived carbon nano-onions for the effective elimination of organic pollutants and oils from water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27457-5. [PMID: 37156947 DOI: 10.1007/s11356-023-27457-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 05/02/2023] [Indexed: 05/10/2023]
Abstract
Oil spillage and leakage of organic solvents have caused severe environmental and ecological damages. It is of great significance to develop a cost-efficient and green adsorbent material with high uptake efficiency to separate the oil-water mixture. In this work, biomass-derived CNOs were first time explored in the adsorption of organic pollutants and oils from water. Carbon nano-onions (CNOs) with hydrophobicity and oleophilicity were cost-effectively synthesized in an energy efficient flame pyrolysis process using flaxseed oil as a carbon source. The as-synthesized CNOs without any further surface modification have shown high adsorption efficiency in removing organic solvents and oils from the oil-water mixture. The CNOs could adsorb diverse organic solvents such as pyridine (36.81 mg g-1), dichloromethane (90.95 mg mg-1), aniline (76 mg mg-1), toluene (64 mg mg-1), chloroform (36.25 mg mg-1), methanol (49.25 mg mg-1), and ethanol (42.25 mg mg-1). The uptake capacity for petrol and diesel over CNOs was observed at 36.68 mg mg-1 and 58.1 mg mg-1, respectively. The adsorption of pyridine followed pseudo-second-order kinetics and Langmuir's isotherm model. Moreover, the adsorption efficiency of CNOs towards the remediation of pyridine was almost similar in real-water samples when tested in tap water, dam water, groundwater, and lake water. Similarly, the practical applicability for the separation of petrol and diesel was also verified in the real sample (sea water) and has been proven to be excellent. By simple evaporation, the recovered CNOs can be reused for more than 5 cycles. CNOs exhibit the promising potential to be used in practical applications for oil-polluted water treatment.
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Affiliation(s)
- Poonam Kumari
- Department of Chemistry, Malaviya National Institute of Technology Jaipur, Jaipur, Rajasthan, 302017, India
| | - Kumud Malika Tripathi
- Department of Chemistry, Indian Institute of Petroleum and Energy, Vishakhapatnam, Andhra Pradesh, 530003, India
| | - Kamlendra Awasthi
- Department of Physics, Malaviya National Institute of Technology Jaipur, Jaipur, Rajasthan, 302017, India
| | - Ragini Gupta
- Department of Chemistry, Malaviya National Institute of Technology Jaipur, Jaipur, Rajasthan, 302017, India.
- Materials Research Centre, Malaviya National Institute of Technology Jaipur, Jaipur, Rajasthan, 302017, India.
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23
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Stari L, Tusher TR, Inoue C, Chien MF. A microbial consortium led by a novel Pseudomonas species enables degradation of carbon tetrachloride under aerobic conditions. CHEMOSPHERE 2023; 319:137988. [PMID: 36724852 DOI: 10.1016/j.chemosphere.2023.137988] [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: 07/30/2022] [Revised: 01/04/2023] [Accepted: 01/26/2023] [Indexed: 06/18/2023]
Abstract
Carbon tetrachloride (CT) is a recalcitrant and high priority pollutant known for its toxicity, environmental prevalence, and inhibitory activities. Although much is known about anaerobic CT biodegradation, microbial degradation of CT under aerobic conditions has not yet been reported. This study reports for the first time the enrichment of a stable aerobic CT-degrading bacterial consortium, from a CT-contaminated groundwater sample, capable of co-metabolically degrading 30 μM of CT within a week. A Pseudomonas strain (designated as Stari2) that is the predominant bacterium in this consortium was isolated, and further characterization showed that this bacterium can tolerate and co-metabolically degrade up to 5 mM of CT under aerobic conditions in the presence of different carbon/energy sources. The CT biodegradation profiles of strain Stari2 and the consortium were found to be identical, while no significant positive correlation between strain Stari2 and other bacteria was observed in the consortium during the period of higher CT biodegradation. These results confirmed that the isolated Pseudomonas strain Stari2 is the key player in the consortium catalyzing the biodegradation of CT. No chloroform (CF) or other chlorinated compound was detected during the cometabolism of CT. The whole genome sequencing of strain Stari2 showed that it is a novel Pseudomonas species. The findings demonstrated that biodegradation of CT under aerobic conditions is feasible, and the isolated CT-degrader Pseudomonas sp. strain Stari2 has a great potential for in-situ bioremediation of CT-contaminated environments.
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Affiliation(s)
- Leonardo Stari
- Graduate School of Environmental Studies, Tohoku University, Aoba 6-6-20, Aramaki, Aoba-ku, Sendai, 980-8579, Japan; Graduate School of Life Science, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai, 980-8577, Japan
| | - Tanmoy Roy Tusher
- Graduate School of Environmental Studies, Tohoku University, Aoba 6-6-20, Aramaki, Aoba-ku, Sendai, 980-8579, Japan; Department of Biological Sciences, Marquette University, Milwaukee, WI, 53233, USA; Department of Environmental Science and Resource Management, Mawlana Bhashani Science and Technology University, Santosh, Tangail, 1902, Bangladesh
| | - Chihiro Inoue
- Graduate School of Environmental Studies, Tohoku University, Aoba 6-6-20, Aramaki, Aoba-ku, Sendai, 980-8579, Japan
| | - Mei-Fang Chien
- Graduate School of Environmental Studies, Tohoku University, Aoba 6-6-20, Aramaki, Aoba-ku, Sendai, 980-8579, Japan.
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24
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Xu L, Bai T, Yi X, Zhao K, Shi W, Dai F, Wei J, Wang J, Shi C. Polypropylene fiber grafted calcium alginate with mesoporous silica for adsorption of Bisphenol A and Pb 2. Int J Biol Macromol 2023; 238:124131. [PMID: 36958444 DOI: 10.1016/j.ijbiomac.2023.124131] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 02/28/2023] [Accepted: 03/18/2023] [Indexed: 03/25/2023]
Abstract
Polypropylene grafted calcium alginate with mesoporous silica (PP-g-CaAlg@SiO2) for adsorbing Bisphenol A (BPA) and Pb2+ was prepared by calcium chloride (CaCl2) crosslinking and hydrochloric acid solution treatment. The PP-g-CaAlg@SiO2 was characterized by SEM, TEM, BET, XRD, FTIR and TG. PP-g-CaAlg@SiO2 exhibited excellent adsorption capacity for BPA and Pb2+, because the formation of reticulated nanorod structure increased its specific surface area. Subsequently, the adsorption behaviours of BPA and Pb2+, including adsorption isotherms and adsorption kinetics, were investigated. Afterward, isothermal titration calorimetry (ITC) and molecular dynamics (MD) simulation were performed to explore the adsorption mechanism. The results indicated that hydrogen bonding played the leading role in the adsorption of BPA, while the bonding of Pb2+ to carboxyl group binding sites was the focus of Pb2+ adsorption. In addition, the adsorption capacity of PP-g-CaAlg@SiO2 was stable over 10 cycles.
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Affiliation(s)
- Lijing Xu
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China; School of Material Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Tian Bai
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China; School of Material Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Xinzhun Yi
- School of Material Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Kongyin Zhao
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China; School of Material Science and Engineering, Tiangong University, Tianjin 300387, China.
| | - Wenxiong Shi
- Institute for New Energy Materials and Low-Carbon Technologies, Tianjin University of Technology, Tianjin, 300387, China
| | - Fengying Dai
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China
| | - Junfu Wei
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China
| | - Jie Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China
| | - Ce Shi
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 300387, China
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25
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Carstensen L, Beil S, Schwab E, Banke S, Börnick H, Stolte S. Primary and ultimate degradation of benzophenone-type UV filters under different environmental conditions and the underlying structure-biodegradability relationships. JOURNAL OF HAZARDOUS MATERIALS 2023; 446:130634. [PMID: 36599278 DOI: 10.1016/j.jhazmat.2022.130634] [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: 11/08/2022] [Revised: 12/09/2022] [Accepted: 12/17/2022] [Indexed: 06/17/2023]
Abstract
Ten common benzophenone-based UV filters (BPs), sharing the same basic structure and differing only in their substituents, were investigated with respect to their primary and ultimate biodegradability. This study was carried out in order to gain deeper insights into the relationship between structure and biodegradability. The primary biodegradation of the selected BPs was studied in river water at environmentally relevant concentrations (1 µg/L) while varying specific, crucial environmental conditions (aerobic, suboxic, supplementation of nutrients). For this purpose, both batch and column degradation tests were performed, which allowed a systematic study of the effects. Subsequently, the ultimate biodegradation, i.e. the potential to achieve full mineralization of BPs, was examined according to OECD guideline 301 F. The results indicate that mineralization is limited to derivatives in which both aromatic rings contain substituents. This hypothesis was supported by docking simulations showing systematic differences in the orientation of BPs within the active site of the cytochrome P450 enzyme. These differences in orientation correspond to the substitution pattern of the BPs. This study provides valuable insights for assessing the environmental hazards of this class of trace organic compounds.
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Affiliation(s)
- Lale Carstensen
- Institute of Water Chemistry, Technical University of Dresden, 01069 Dresden, Germany
| | - Stephan Beil
- Institute of Water Chemistry, Technical University of Dresden, 01069 Dresden, Germany
| | - Ekaterina Schwab
- Institute of Water Chemistry, Technical University of Dresden, 01069 Dresden, Germany
| | - Sophie Banke
- Institute of Water Chemistry, Technical University of Dresden, 01069 Dresden, Germany
| | - Hilmar Börnick
- Institute of Water Chemistry, Technical University of Dresden, 01069 Dresden, Germany
| | - Stefan Stolte
- Institute of Water Chemistry, Technical University of Dresden, 01069 Dresden, Germany.
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26
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Zan S, Wang J, Fan J, Jin Y, Li Z, Du M. Cyclohexanecarboxylic acid degradation with simultaneous nitrate removal by Marinobacter sp. SJ18. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:34296-34305. [PMID: 36512278 DOI: 10.1007/s11356-022-24705-y] [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: 07/12/2022] [Accepted: 12/06/2022] [Indexed: 06/17/2023]
Abstract
Naphthenic acid (NA) is a toxic pollutant with potential threat to human health. However, NA transformations in marine environments are still unclear. In this study, the characteristics and pathways of cyclohexanecarboxylic acid (CHCA) biodegradation were explored in the presence of nitrate. The results showed that CHCA was completely degraded with pseudo-first-order kinetic reaction under aerobic and anaerobic conditions, accompanied by nitrate removal rates exceeding 70%, which was positively correlated with CHCA degradation (P < 0.05). In the proposed CHCA degradation pathways, cyclohexane is dehydrogenated to form cyclohexene, followed by ring-opening by dioxygenase to generate fatty acid under aerobic conditions or cleavage of cyclohexene through β-oxidation under anaerobic conditions. Whole genome analysis indicated that nitrate was removed via assimilation and dissimilation pathways under aerobic conditions and via denitrification pathway under anaerobic conditions. These results provide a basis for alleviating combined pollution of NA and nitrate in marine environments with frequent anthropogenic activities.
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Affiliation(s)
- Shuaijun Zan
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, No. 2 Linggong Road, Dalian, 116024, China
- Groundwater Provincial Engineering Research Center for Urban Water Recycling and Environmental Safety, Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Jing Wang
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, No. 2 Linggong Road, Dalian, 116024, China.
| | - Jingfeng Fan
- Marine Ecology Department, National Marine Environmental Monitoring Center, Dalian, 116023, China
| | - Yuan Jin
- Marine Ecology Department, National Marine Environmental Monitoring Center, Dalian, 116023, China
| | - Zelong Li
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, No. 2 Linggong Road, Dalian, 116024, China
| | - Miaomiao Du
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, No. 2 Linggong Road, Dalian, 116024, China
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27
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Wolak I, Bajkacz S, Harnisz M, Stando K, Męcik M, Korzeniewska E. Digestate from Agricultural Biogas Plants as a Reservoir of Antimicrobials and Antibiotic Resistance Genes-Implications for the Environment. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:2672. [PMID: 36768038 PMCID: PMC9915926 DOI: 10.3390/ijerph20032672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/30/2023] [Accepted: 01/31/2023] [Indexed: 06/18/2023]
Abstract
Antimicrobials and antibiotic resistance genes (ARGs) in substrates processed during anaerobic digestion in agricultural biogas plants (BPs) can reach the digestate (D), which is used as fertilizer. Antimicrobials and ARGs can be transferred to agricultural land, which increases their concentrations in the environment. The concentrations of 13 antibiotics in digestate samples from biogas plants (BPs) were investigated in this study. The abundance of ARGs encoding resistance to beta-lactams, tetracyclines, sulfonamides, fluoroquinolones, macrolide-lincosamide-streptogramin antibiotics, and the integrase genes were determined in the analyzed samples. The presence of cadmium, lead, nickel, chromium, zinc, and mercury was also examined. Antimicrobials were not eliminated during anaerobic digestion. Their concentrations differed in digestates obtained from different substrates and in liquid and solid fractions (ranging from 62.8 ng/g clarithromycin in the solid fraction of sewage sludge digestate to 1555.9 ng/L doxycycline in the liquid fraction of cattle manure digestate). Digestates obtained from plant-based substrates were characterized by high concentrations of ARGs (ranging from 5.73 × 102 copies/gDcfxA to 2.98 × 109 copies/gDsul1). The samples also contained mercury (0.5 mg/kg dry mass (dm)) and zinc (830 mg/kg dm). The results confirmed that digestate is a reservoir of ARGs (5.73 × 102 to 8.89 × 1010 copies/gD) and heavy metals (HMs). In addition, high concentrations of integrase genes (105 to 107 copies/gD) in the samples indicate that mobile genetic elements may be involved in the spread of antibiotic resistance. The study suggested that the risk of soil contamination with antibiotics, HMs, and ARGs is high in farms where digestate is used as fertilizer.
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Affiliation(s)
- Izabela Wolak
- Department of Water Protection Engineering and Environmental Microbiology, Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, Prawocheńskiego 1, 10-720 Olsztyn, Poland
| | - Sylwia Bajkacz
- Department of Environmental Biotechnology, Faculty of Energy and Environmental Engineering, Silesian University of Technology, Akademicka 2, 44-100 Gliwice, Poland
| | - Monika Harnisz
- Department of Water Protection Engineering and Environmental Microbiology, Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, Prawocheńskiego 1, 10-720 Olsztyn, Poland
| | - Klaudia Stando
- Department of Environmental Biotechnology, Faculty of Energy and Environmental Engineering, Silesian University of Technology, Akademicka 2, 44-100 Gliwice, Poland
| | - Magdalena Męcik
- Department of Water Protection Engineering and Environmental Microbiology, Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, Prawocheńskiego 1, 10-720 Olsztyn, Poland
| | - Ewa Korzeniewska
- Department of Water Protection Engineering and Environmental Microbiology, Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, Prawocheńskiego 1, 10-720 Olsztyn, Poland
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28
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Jiang T, Wang B, Gao B, Cheng N, Feng Q, Chen M, Wang S. Degradation of organic pollutants from water by biochar-assisted advanced oxidation processes: Mechanisms and applications. JOURNAL OF HAZARDOUS MATERIALS 2023; 442:130075. [PMID: 36209607 DOI: 10.1016/j.jhazmat.2022.130075] [Citation(s) in RCA: 40] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/10/2022] [Accepted: 09/25/2022] [Indexed: 06/16/2023]
Abstract
Biochar has shown large potential in environmental remediation because of its low cost, large specific surface area, porosity, and high conductivity. Biochar-assisted advanced oxidation processes (BC-AOPs) have recently attracted increasing attention to the remediation of organic pollutants from water. However, the effects of biochar properties on catalytic performance need to be further explored. There are still controversial and knowledge gaps in the reaction mechanisms of BC-AOPs, and regeneration methods of biochar catalysts are lacking. Therefore, it is necessary to systematically review the latest research progress of BC-AOPs in the treatment of organic pollutants in water. In this review, first of all, the effects of biochar properties on catalytic activity are summarized. The biochar properties can be optimized by changing the feedstocks, preparation conditions, and modification methods. Secondly, the catalytic active sites and degradation mechanisms are explored in different BC-AOPs. Different influencing factors on the degradation process are analyzed. Then, the applications of BC-AOPs in environmental remediation and regeneration methods of different biochar catalysts are summarized. Finally, the development prospects and challenges of biochar catalysts in environmental remediation are put forward, and some suggestions for future development are proposed.
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Affiliation(s)
- Tao Jiang
- Key Laboratory of Karst Georesources and Environment (Guizhou University), Ministry of Education, Guiyang, Guizhou 550025, China
| | - Bing Wang
- Key Laboratory of Karst Georesources and Environment (Guizhou University), Ministry of Education, Guiyang, Guizhou 550025, China; College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou 550025, China.
| | - Bin Gao
- Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL 32611, United States
| | - Ning Cheng
- College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou 550025, China
| | - Qianwei Feng
- College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou 550025, China
| | - Miao Chen
- College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou 550025, China
| | - Shengsen Wang
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225127, China
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Brueck CL, Nason SL, Multra MG, Prasse C. Assessing the fate of antibiotics and agrochemicals during anaerobic digestion of animal manure. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 856:159156. [PMID: 36195139 DOI: 10.1016/j.scitotenv.2022.159156] [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: 07/07/2022] [Revised: 09/12/2022] [Accepted: 09/28/2022] [Indexed: 06/16/2023]
Abstract
Antibiotics and pesticides are used extensively by the livestock industry. Agricultural chemicals can pose potential human and environmental health risks due to their toxicity and through their contributions to antimicrobial resistance, and strategies to reduce their emission into the environment are urgently needed. Anaerobic digestion (AD) is a sustainable technology for manure management that produces biogas while also providing an opportunity to degrade agricultural chemicals that are present in manure. While the effects of selected chemicals on biogas production have been investigated previously, little is known about chemical transformations during AD. Using lab-scale AD batch reactors containing dairy manure, degradation kinetics and transformation products (TPs) were investigated for twenty compounds that are likely to be present in manure management systems and that we hypothesized would transform during AD. Digestate samples were extracted using a modified quick, easy, cheap, effective, rugged, and safe (QuEChERS) method and analyzed using liquid chromatography - high-resolution mass spectrometry. Eleven of the tested chemicals degraded, leading to the formation of 47 TPs. Three compounds degraded abiotically only, two degraded biotically only, and six degraded both abiotically and biotically. These results suggest that in addition to renewable energy generation, AD contributes to the degradation of chemical contaminants present in agricultural waste streams. However, the potential toxic effects of TPs require further investigation.
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Affiliation(s)
- Christopher L Brueck
- Department of Environmental Health and Engineering, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218, United States of America
| | - Sara L Nason
- Department of Environmental Health and Engineering, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218, United States of America
| | - Melody G Multra
- Department of Environmental Health and Engineering, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218, United States of America
| | - Carsten Prasse
- Department of Environmental Health and Engineering, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218, United States of America.
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30
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Du M, Jin Y, Fan J, Zan S, Gu C, Wang J. A new pathway for anaerobic biotransformation of marine toxin domoic acid. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:5150-5160. [PMID: 35974277 DOI: 10.1007/s11356-022-22368-3] [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: 04/09/2022] [Accepted: 07/29/2022] [Indexed: 06/15/2023]
Abstract
Domoic acid (DA) is a harmful algal toxin produced by marine diatom Pseudo-nitzschia and seriously threatens ecosystem and human health. However, the current knowledge on its biotransformation behavior in coastal anaerobic environment is lacking. This study investigated the anaerobic biotransformation of DA by a new marine consortium GH1. The results demonstrated that 90% of DA (1 mg L-1) was cometabolically biotransformed under sulfate-reducing condition. A new anaerobic biotransformation pathway involving DA hydration, dehydrogenation, and C-C bond cleavage was proposed, where the conjugated double-bond of DA was interrupted, resulting in the corresponding alcohols and ketones, subsequently cleaved hydrolytically, and yielding the lower molecular weight products. Desulfovibrio and Clostridiales were markedly enriched in the anaerobic biotransformation of DA, which might jointly contribute to the elevated bacterial consortium resistance and degradation to DA. This study could deepen understanding of behavior and fate for DA in marine environments.
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Affiliation(s)
- Miaomiao Du
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, No.2 Linggong Road, Dalian, 116024, People's Republic of China
| | - Yuan Jin
- Marine Ecology Department, National Marine Environmental Monitoring Center, Dalian, 116023, China
| | - Jingfeng Fan
- Marine Ecology Department, National Marine Environmental Monitoring Center, Dalian, 116023, China
| | - Shuaijun Zan
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, No.2 Linggong Road, Dalian, 116024, People's Republic of China
| | - Chen Gu
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, No.2 Linggong Road, Dalian, 116024, People's Republic of China
| | - Jing Wang
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, No.2 Linggong Road, Dalian, 116024, People's Republic of China.
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31
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Yang G, Xie S, Yang M, Tang S, Zhou L, Jiang W, Zhou B, Li Y, Si B. A critical review on retaining antibiotics in liquid digestate: Potential risk and removal technologies. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 853:158550. [PMID: 36075409 DOI: 10.1016/j.scitotenv.2022.158550] [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: 07/04/2022] [Revised: 08/09/2022] [Accepted: 09/01/2022] [Indexed: 06/15/2023]
Abstract
Substantial levels of antibiotics remain in liquid digestate, posing a significant threat to human safety and the environment. A comprehensive assessment of residual antibiotics in liquid digestate and related removal technologies is required. To this end, this review first evaluates the potential risks of the residual antibiotics in liquid digestate by describing various anaerobic digestion processes and their half-lives in the environment. Next, emerging technologies for removing antibiotics in liquid digestate are summarized and discussed, including membrane separation, adsorption, and advanced oxidation processes. Finally, this study comprehensively and critically discusses these emerging technologies' prospects and challenges, including techno-economic feasibility and environmental impacts.
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Affiliation(s)
- Gaixiu Yang
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China
| | - Shihao Xie
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China; College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Min Yang
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Shuai Tang
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Lei Zhou
- Center for Professional Training and Service, China Association for Science and Technology, Beijing 100081, China
| | - Weizhong Jiang
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Bo Zhou
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Yunkai Li
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Buchun Si
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China.
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32
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Motteran F, Varesche MBA, Lara-Martin PA. Assessment of the aerobic and anaerobic biodegradation of contaminants of emerging concern in sludge using batch reactors. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:84946-84961. [PMID: 35789461 DOI: 10.1007/s11356-022-21819-1] [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: 03/29/2022] [Accepted: 06/29/2022] [Indexed: 06/15/2023]
Abstract
This work explores the degradation of xenobiotic compounds in aerobic and anaerobic batch reactors. Different inoculums were spiked with nine emerging contaminants at nominal concentrations ranging between 1 to 2 mg/L (ibuprofen, diclofenac, naproxen, acesulfame, sucralose, aspartame, cyclamate, linear alkylbenzene sulfonates, and secondary alkyl sulfonates). Ethanol was used as co-substrate in the anaerobic reactors. We found that the kinetic decay was faster in the aerobic reactors inoculated with a Spanish (Spn) inoculum compared to a Brazilian (Brz) inoculum, resulting in rection rates for LAS and SAS of 2.67 ± 3.6 h-1 and 5.09 ± 6 h-1 for the Brz reactors, and 1.3 ± 0.1 h-1 and 1.5 ± 0.2 h-1 for the Spn reactors, respectively. There was no evidence of LAS and SAS degradation under anaerobic conditions within 72 days; nonetheless, under aerobic conditions, these surfactants were removed by both the Brz and Spn inoculums (up to 86.2 ± 9.4% and 74.3 ± 0.7%, respectively) within 10 days. The artificial sweeteners were not removed under aerobic conditions, whereas we could observe a steady decrease in the anaerobic reactors containing the Spn inoculum. Ethanol aided in the degradation of surfactants in anaerobic environments. Proteiniphilum, Paraclostridium, Arcobacter, Proteiniclasticum, Acinetobacter, Roseomonas, Aquamicrobium, Moheibacter, Leucobacter, Synergistes, Cyanobacteria, Serratia, and Desulfobulbus were the main microorganisms identified in this study.
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Affiliation(s)
- Fabricio Motteran
- Geosciences Technology Center, Department of Civil and Environmental Engineering, Environmental Sanitation Laboratory and Laboratory of Molecular Biology and Environmental Technology, Federal University of Pernambuco, Ave. Arquitetura, s/n, Cidade Universitária, Recife, PA, Zipcode 50740-550, Brazil.
| | - Maria Bernadete Amâncio Varesche
- Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo, Ave Trabalhador São-Carlense, n°. 400, São Carlos, São Paulo, Zipcode 13566-590, Brazil
| | - Pablo A Lara-Martin
- Department of Physical Chemistry, Faculty of Environmental and Marine Sciences, University of Cadiz (UCA), Campus Río San Pedro, 11510, Puerto Real (Cádiz), Andalusia, Spain
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Yaashikaa PR, Devi MK, Kumar PS. Engineering microbes for enhancing the degradation of environmental pollutants: A detailed review on synthetic biology. ENVIRONMENTAL RESEARCH 2022; 214:113868. [PMID: 35835162 DOI: 10.1016/j.envres.2022.113868] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 05/28/2022] [Accepted: 07/06/2022] [Indexed: 06/15/2023]
Abstract
Anthropogenic activities resulted in the deposition of huge quantities of contaminants such as heavy metals, dyes, hydrocarbons, etc into an ecosystem. The serious ill effects caused by these pollutants to all living organisms forced in advancement of technology for degrading or removing these pollutants. This degrading activity is mostly depending on microorganisms owing to their ability to survive in harsh adverse conditions. Though native strains possess the capability to degrade these pollutants the development of genetic engineering and molecular biology resulted in engineering approaches that enhanced the efficiency of microbes in degrading pollutants at faster rate. Many bioinformatics tools have been developed for altering/modifying genetic content in microbes to increase their degrading potency. This review provides a detailed note on engineered microbes - their significant importance in degrading environmental contaminants and the approaches utilized for modifying microbes. The genes responsible for degrading the pollutants have been identified and modified fir increasing the potential for quick degradation. The methods for increasing the tolerance in engineered microbes have also been discussed. Thus engineered microbes prove to be effective alternate compared to native strains for degrading pollutants.
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Affiliation(s)
- P R Yaashikaa
- Department of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 602105, India
| | - M Keerthana Devi
- Department of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 602105, India
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India.
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34
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Rani M, Sillanpää M, Shanker U. An updated review on environmental occurrence, scientific assessment and removal of brominated flame retardants by engineered nanomaterials. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 321:115998. [PMID: 36001915 DOI: 10.1016/j.jenvman.2022.115998] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 07/18/2022] [Accepted: 08/09/2022] [Indexed: 06/15/2023]
Abstract
Due to the extensive manufacturing and use of brominated flame retardants (BFRs), they are known to be hazardous, bioaccumulative, and recalcitrant pollutants in various environmental matrices. BFRs make flame-resistant items for industrial purposes (textiles, electronics, and plastics equipment) that are disposed of in massive amounts and leak off in various environmental matrices. The consumption of plastic items has expanded tremendously during the COVID-19 pandemic which has resulted into the increasing load of solid waste on land and water. Some BFRs, such as polybrominated diphenyl ethers (PBDEs) and hexabromocyclododecane (HBCDs), are no longer utilized or manufactured owing to their negative impacts, which promotes the utilization of new BFRs as alternatives. BFRs have been discovered worldwide in soil, sludge, water, and other contamination sources. Various approaches such as photocatalysis-based oxidation/reduction, adsorption, and heat treatment have been found to eradicate BFRs from the environment. Nanomaterials with unique properties are one of the most successful methodologies for removing BFRs via photocatalysis. These methods have been praised for being low-cost, quick, and highly efficient. Engineered nanoparticles degraded BFRs when exposed to light and either convert them into safer metabolites or completely mineralize. Scientific assessment of research taking place in this area during the past five years has been discussed. This review offers comprehensive details on environmental occurrence, toxicity, and removal of BFRs from various sources. Degradation pathways and different removal strategies related to data have also been presented. An attempt has also been made to highlight the research gaps prevailing in the current research area.
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Affiliation(s)
- Manviri Rani
- Department of Chemistry, Malaviya National Institute of Technology Jaipur, Rajasthan, 302017, India.
| | - Mika Sillanpää
- Department of Chemical Engineering, School of Mining, Metallurgy and Chemical Engineering, University of Johannesburg, P. O. Box 17011, 2028, South Africa
| | - Uma Shanker
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar, Punjab, 144011, India.
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35
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Xu R, Chi T, Ren H, Li F, Tian J, Chen L. The occurrence, distribution and removal of adsorbable organic halogens (AOX) in a typical fine chemical industrial park. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 312:120043. [PMID: 36030952 DOI: 10.1016/j.envpol.2022.120043] [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: 04/14/2022] [Revised: 08/20/2022] [Accepted: 08/22/2022] [Indexed: 06/15/2023]
Abstract
Coastal water quality in China has been impacted by direct discharge of industrial wastewater, and various kinds of AOX pollutants have been detected in the seawater and sediment. As the dominant pollution source of Hangzhou Bay, a typical fine chemical industry park "HSEDA" was selected as the study area in this research. The AOX in both wastewater and sludge phases from 22 large-scaled enterprises were simultaneously investigated. The results quantitatively illustrated the AOX flows from engineered wastewater and sludge treatment systems to natural environment. It can be seen that industrial enterprises discharged at least 160 t AOX every year, and about 105.4 t/a AOX eventually entered the natural environment. The dye manufacturing industry, which accounted for more than 60% of the total AOX emission load in HSEDA, was identified as the AOX pollution-intensive sector. The occurrence, characteristic pollutants and fate of AOX in dye wastewater were discussed, on the basis of which the improvements of cleaner production and wastewater treatment technologies have been put forward.
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Affiliation(s)
- Ranyun Xu
- School of Environment, Tsinghua University, Beijing, 100084, China
| | - Tongtong Chi
- School of Environment, Tsinghua University, Beijing, 100084, China
| | - Hang Ren
- School of Environment, Tsinghua University, Beijing, 100084, China
| | - Feifei Li
- School of Environment, Tsinghua University, Beijing, 100084, China
| | - Jinping Tian
- School of Environment, Tsinghua University, Beijing, 100084, China
| | - Lyujun Chen
- School of Environment, Tsinghua University, Beijing, 100084, China.
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36
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Yan R, Huang H, Wang HL, Chu S, Jiang WF. Facile in-situ construction of Z-scheme Bi6O5(OH)3(NO3)5·3H2O/Bi5O7I binary heterojunction composites for superior photocatalytic degradation of diverse persistent organic pollutants in water. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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37
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Macêdo WV, Poulsen JS, Zaiat M, Nielsen JL. Proteogenomics identification of TBBPA degraders in anaerobic bioreactor. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 310:119786. [PMID: 35872283 DOI: 10.1016/j.envpol.2022.119786] [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: 03/12/2022] [Revised: 06/29/2022] [Accepted: 07/12/2022] [Indexed: 06/15/2023]
Abstract
Tetrabromobisphenol A (TBBPA) is the most used flame retardant worldwide and has become a threat to aquatic ecosystems. Previous research into the degradation of this micropollutant in anaerobic bioreactors has suggested several identities of putative TBBPA degraders. However, the organisms actively degrading TBBPA under in situ conditions have so far not been identified. Protein-stable isotope probing (protein-SIP) has become a cutting-edge technique in microbial ecology for enabling the link between identity and function under in situ conditions. Therefore, it was hypothesized that combining protein-based stable isotope probing with metagenomics could be used to identify and provide genomic insight into the TBBPA-degrading organisms. The identified 13C-labelled peptides were found to belong to organisms affiliated to Phytobacter, Clostridium, Sporolactobacillus, and Klebsilla genera. The functional classification of identified labelled peptides revealed that TBBPA is not only transformed by cometabolic reactions, but also assimilated into the biomass. By application of the proteogenomics with labelled micropollutants (protein-SIP) and metagenome-assembled genomes, it was possible to extend the current perspective of the diversity of TBBPA degraders in wastewater and predict putative TBBPA degradation pathways. The study provides a link to the active TBBPA degraders and which organisms to favor for optimized biodegradation.
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Affiliation(s)
- Williane Vieira Macêdo
- Laboratory of Biological Processes, São Carlos School of Engineering, University of São Paulo (USP), 1100, João Dagnone Ave., Santa Angelina, Zip Code 13563-120, São Carlos, SP, Brazil; Center for Microbial Communities, Department of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7H, DK-9220, Aalborg, Denmark
| | - Jan Struckmann Poulsen
- Center for Microbial Communities, Department of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7H, DK-9220, Aalborg, Denmark
| | - Marcelo Zaiat
- Laboratory of Biological Processes, São Carlos School of Engineering, University of São Paulo (USP), 1100, João Dagnone Ave., Santa Angelina, Zip Code 13563-120, São Carlos, SP, Brazil
| | - Jeppe Lund Nielsen
- Center for Microbial Communities, Department of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7H, DK-9220, Aalborg, Denmark.
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38
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Lin W, Zhao B, Ping S, Zhang X, Ji Y, Ren Y. Ultraviolet oxidative degradation of typical antidepressants: Pathway, product toxicity, and DFT theoretical calculation. CHEMOSPHERE 2022; 305:135440. [PMID: 35753423 DOI: 10.1016/j.chemosphere.2022.135440] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 05/27/2022] [Accepted: 06/19/2022] [Indexed: 06/15/2023]
Abstract
The ubiquity of antidepressants in the environment has posed a potential threat to eco-systematic safety. In this study, six kinds of antidepressants including fluoxetine (FLU), paroxetine (PAR), sertraline (SER), fluvoxamine (FLX), citalopram (CTP), and venlafaxine (VEN) were selected to explore their degrading kinetics, transformation pathways, and the acute toxicity of the reaction solution during UV oxidation. The results showed that the order of the photodegradation rate was FLU > PAR > SER > CTP > FLX > VEN. The calculation results of density functional theory (DFT) and molecular orbital theory showed that it was positively correlated with the frontier electron density of drugs and negatively correlated with the HOMO-LUMO gap, respectively. Intermediates were identified with UHPLC-Q-TOF/MS/MS to propose the possible degradation pathways of the drugs and the most likely directions of the reactions were determined by the single point energy calculation. The results of toxicity tests indicated that the acute toxicity of the reaction solution of PAR did not change significantly. The photolysates toxicity of FLU, SER, and FLX decreased at the end of the reaction, while that of CTP and VEN was increased by 1.5 and 1.3 times compared with the parent compound, respectively. Toxicity predictions by the quantitative structure activity relationship (QSAR) model showed that except FLU-162, FLX-174, and VEN-230, other degradation products have developmental toxicity. The results revealed the transformation pathways of these drugs under the UV disinfection process in wastewater treatment plants, especially the formation of toxic by-products during the disinfection process.
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Affiliation(s)
- Wenting Lin
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China
| | - Baocong Zhao
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Guangdong-Hong Kong, Macao Joint Laboratory for Contaminants Exposure and Health, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory of City Cluster Environmental Safety and Green Development, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China
| | - Senwen Ping
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China
| | - Xiaohan Zhang
- Shenzhen Shenshui Water Resources Consulting Co..Ltd, Shenzhen, 518003, China
| | - Yuemeng Ji
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Guangdong-Hong Kong, Macao Joint Laboratory for Contaminants Exposure and Health, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Key Laboratory of City Cluster Environmental Safety and Green Development, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China
| | - Yuan Ren
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, China; The Key Laboratory of Environmental Protection and Eco-Remediation of Guangdong Regular Higher Education Institutions, China.
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39
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Oberoi AS, Surendra KC, Wu D, Lu H, Wong JWC, Kumar Khanal S. Anaerobic membrane bioreactors for pharmaceutical-laden wastewater treatment: A critical review. BIORESOURCE TECHNOLOGY 2022; 361:127667. [PMID: 35878778 DOI: 10.1016/j.biortech.2022.127667] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 07/16/2022] [Accepted: 07/18/2022] [Indexed: 06/15/2023]
Abstract
Pharmaceuticalsare a diverse group of chemical compounds widely used for prevention and treatment of infectious diseases in both humans and animals. Pharmaceuticals, either in their original or metabolite form, find way into the wastewater treatment plants (WWTPs) from different sources. Recently, anaerobic membrane bioreactors (AnMBR) has received significant research attention for the treatment of pharmaceuticals in various wastewater streams. This review critically examines the behaviour and removal of a wide array of pharmaceuticals in AnMBR with primary focus on their removal efficiencies and mechanisms, critical influencing factors, and the microbial community structures. Subsequently, the inhibitory effects of pharmaceuticals on the performance of AnMBR and membrane fouling are critically discussed. Furthermore, the imperative role of membrane biofouling layer and its components in pharmaceuticals removal is highlighted. Finally, recent advancements in AnMBR configurations for membrane fouling control and enhanced pharmaceuticals removal are systemically discussed.
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Affiliation(s)
- Akashdeep Singh Oberoi
- Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region.
| | - K C Surendra
- Department of Molecular Biosciences and Bioengineering, University of Hawaì'i at Mānoa, 1955 East-West Road, Honolulu, HI 96822, USA; Global Institute for Interdisciplinary Studies, 44600 Kathmandu, Nepal.
| | - Di Wu
- Centre for Environmental and Energy Research, Ghent University Global Campus, Incheon, Republic of Korea.
| | - Hui Lu
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, PR China.
| | - Jonathan W C Wong
- Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region; Institute of Bioresource and Agriculture, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region.
| | - Samir Kumar Khanal
- Department of Molecular Biosciences and Bioengineering, University of Hawaì'i at Mānoa, 1955 East-West Road, Honolulu, HI 96822, USA.
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40
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Yu Q, Yang X, Zhao F, Hu X, Guan L, Ren H, Geng J. Spatiotemporal variation and removal of selected endocrine-disrupting chemicals in wastewater treatment plants across China: Treatment process comparison. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 835:155374. [PMID: 35461936 DOI: 10.1016/j.scitotenv.2022.155374] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 04/11/2022] [Accepted: 04/14/2022] [Indexed: 06/14/2023]
Abstract
In this study, the spatiotemporal variation in the occurrence of 19 endocrine-disrupting chemicals (EDCs) spanning four seasons in wastewater treatment plants (WWTPs) located in 17 Chinese cities was investigated. Removal efficiencies for selected EDCs in 17 WWTPs over four seasons were analyzed. Contributions of conventional and advanced process segments to the removal efficiency of EDCs were explored, which compared the removal efficacies of a variety of secondary and advanced processes for EDCs. Results showed that EDCs were extensively detected in WWTPs, with bisphenol A (BPA), dehydroepiandrosterone (DHRD), androstenedione (ADD), and pregnanediol (PD) being dominant in excess sludge and wastewater. Seasonally, the greatest seasonal differences were observed in the influent, with the concentrations of 12 EDCs varying significantly between seasons. Spatially, concentrations of BPA, DHRD, testosterone (TTR), and estriol (E3) in the influent significantly varied between the northern and southern WWTPs. Fourteen EDCs were removed steadily among the four seasons, while most EDCs had considerable removal differences between WWTPs. Contribution of the conventional process segment to the removal of individual EDCs was higher than that of the advanced process segment in WWTPs. Quantitative meta-analysis indicated that the anaerobic-anoxic-anaerobic (AAO) process in the various secondary processes had the highest removal of the target EDCs. Mass balance analysis further suggested that biodegradation in the aerobic tank of the AAO process was the major pathway for most EDCs removal. This study systematically depicts the spatiotemporal distribution of EDCs in WWTPs located across China and deepens the comprehension of EDCs removal in Chinese WWTPs from a treatment process perspective.
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Affiliation(s)
- Qingmiao Yu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, Jiangsu, PR China
| | - Xudong Yang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, Jiangsu, PR China
| | - Fuzheng Zhao
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Anning West Road No. 88, Lanzhou 730070, PR China
| | - Xianda Hu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, Jiangsu, PR China
| | - Linchang Guan
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, Jiangsu, PR China
| | - Hongqiang Ren
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, Jiangsu, PR China
| | - Jinju Geng
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, Jiangsu, PR China.
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Wang J, Peng C, Dai Y, Li Y, Jiao S, Ma X, Liu X, Wang L. Slower antibiotics degradation and higher resistance genes enrichment in plastisphere. WATER RESEARCH 2022; 222:118920. [PMID: 35964510 DOI: 10.1016/j.watres.2022.118920] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 07/15/2022] [Accepted: 07/28/2022] [Indexed: 06/15/2023]
Abstract
Microplastics (MPs) are increasingly entering the urban aquatic ecosystems, and the environmental significance and health risks of plastisphere, a special biofilm on MPs, have received widespread attention. In this study, MPs of polylactic acid (PLA) and polyvinyl chloride (PVC) and quartzite were incubated in an urban water environment, and the tetracycline (TC) degradation ability was compared. Approximatedly 24% of TC biodegraded in 28 d in the water-quartzite system, which is significantly higher than that in the water-PLA (17.3%) and water-PVC systems (16.7%). Re-incubation of microorganisms in biofilms affirmed that quartzite biofilm has a higher TC degradation capacity than the plastisphere. According to high-throughput sequencing of 16S rRNA and metagenomic analysis, quartzite biofilm contained more abundant potential TC degrading bacteria, genes related to TC degradation (eutG, aceE, and DLAT), and metabolic pathways related to TC degradation. An oligotrophic environment on the quartzite surface might lead to the higher metabolic capacity of quartzite biofilm for unconventional carbons, e.g., TC. It is also found that, compared with quartzite biofilm, the distinct microbes in the plastisphere carried more antibiotic resistance genes (ARGs). Higher affinity of MPs surface to antibiotics may lead to higher antibiotics stress on the plastisphere, which further amplify the carrying capacity for ARGs of microorganisms in the plastisphere. Compared to the nondegradable PVC MPs, surface of the biodegradable PLA plastics harbored significantly higher amounts of biomass and ARGs. Compared to the mineral particles, the capability of plastisphere has lower ability to degrade unconventional carbon sources such as the refractory organic pollutants, due to the abundance of carbon sources (adsorbed organic carbon and endogenous organic carbon) on the MPs surface. Meanwhile, the stronger adsorption capacity for pollutants also leads to higher pollutant stress (such as antibiotic stress) in plastisphere, which in turn affects the microbiological characteristics of the plastisphere itself, such as carrying more ARGs.
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Affiliation(s)
- Jiao Wang
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300354, China
| | - Chu Peng
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Yexin Dai
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300354, China
| | - Yang Li
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300354, China
| | - Shipu Jiao
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300354, China
| | - Xiaodong Ma
- School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, China
| | - Xianhua Liu
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300354, China.
| | - Lei Wang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.
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Chyoshi B, Gomes Coelho LH, García J, Subtil EL. Fate and removal of emerging contaminants in anaerobic fluidized membrane bioreactor filled with thermoplastic gel as biofilm support. CHEMOSPHERE 2022; 300:134557. [PMID: 35405192 DOI: 10.1016/j.chemosphere.2022.134557] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 03/23/2022] [Accepted: 04/05/2022] [Indexed: 06/14/2023]
Abstract
The Anaerobic Fluidized Membrane Bioreactor (AnFMBR) is a membrane-based hybrid technology that can overcome the limitations of conventional anaerobic sewage treatment. Although previous studies have demonstrated excellent performance in the removal of conventional organic pollutants, further research into the removal paths of emerging contaminants (ECs) under various operating conditions is required for proper design and development of the AnFMBR technology. Regarding this, the fate of four ECs in a lab-scale AnFMBR filled with thermoplastic gel for biofilm growth was investigated under various Hydraulic Retention Time (HRT) conditions. When the HRT was 13 h, diclofenac and 17β-estradiol were efficiently removed at 93% and 72% respectively. Even after an HRT reduction to 6.5 h, the system was still able to maintain high ECs removals (74% for diclofenac and 69% for 17β-estradiol). However, irrespective of HRT operational condition, smaller removals of 17a-ethinylestradiol (37-52%) were observed, while only marginal removals of amoxicillin were achieved (5-29%). Biotransformation was attributed as the main route for ECs removal. The results obtained in this study indicate that the membrane-based hybrid AnFMBR can be used to treat the target ECs without influence on anaerobic process. The technology had better removal efficiency for diclofenac and 17β-estradiol. However, the AnFMBR system exhibits high variability in EC removal and low capacity for amoxicillin removal, implying that a combination of other processes is still required to properly avoid the release of these contaminants into the environment.
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Affiliation(s)
- Bruna Chyoshi
- Center of Engineering, Modeling and Applied Social Sciences, Federal University of ABC, Av. dos Estados, 5001, Santo André/SP, 09210-580, Brazil.
| | - Lucia Helena Gomes Coelho
- Center of Engineering, Modeling and Applied Social Sciences, Federal University of ABC, Av. dos Estados, 5001, Santo André/SP, 09210-580, Brazil.
| | - Joan García
- GEMMA-Group of Environmental Engineering and Microbiology, Department of Civil and Environmental Engineering, Universitat Politècnica de Catalunya-BarcelonaTech, c/ Jordi Girona 1-3, Building D1, E-08034, Barcelona, Spain.
| | - Eduardo Lucas Subtil
- Center of Engineering, Modeling and Applied Social Sciences, Federal University of ABC, Av. dos Estados, 5001, Santo André/SP, 09210-580, Brazil.
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Alegbeleye O, Daramola OB, Adetunji AT, Ore OT, Ayantunji YJ, Omole RK, Ajagbe D, Adekoya SO. Efficient removal of antibiotics from water resources is a public health priority: a critical assessment of the efficacy of some remediation strategies for antibiotics in water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:56948-57020. [PMID: 35716301 DOI: 10.1007/s11356-022-21252-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Accepted: 05/30/2022] [Indexed: 05/27/2023]
Abstract
This review discusses the fundamental principles and mechanism of antibiotic removal from water of some commonly applied treatment techniques including chlorination, ozonation, UV-irradiation, Fenton processes, photocatalysis, electrochemical-oxidation, plasma, biochar, anaerobicdigestion, activated carbon and nanomaterials. Some experimental shortfalls identified by researchers such as certain characteristics of degradation agent applied and the strategies explored to override the identified limitations are briefly discussed. Depending on interactions of a range of factors including the type of antibiotic compound, operational parameters applied such as pH, temperature and treatment time, among other factors, all reviewed techniques can eliminate or reduce the levels of antibiotic compounds in water to varying extents. Some of the reviewed techniques such as anaerobic digestion generally require longer treatment times (up to 360, 193 and 170 days, according to some studies), while others such as photocatalysis achieved degradation within short contact time (within a minimum of 30, but up to 60, 240, 300 and 1880 minutes, in some cases). For some treatment techniques such as ozonation and Fenton, it is apparent that subjecting compounds to longer treatment times may improve elimination efficiency, whereas for some other techniques such as nanotechnology, application of longer treatment time generally meant comparatively minimal elimination efficiency. Based on the findings of experimental studies summarized, it is apparent that operational parameters such as pH and treatment time, while critical, do not exert sole or primary influence on the elimination percentage(s) achieved. Elimination efficiency achieved rather seems to be due more to the force of a combination of several factors.
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Affiliation(s)
- Oluwadara Alegbeleye
- Department of Food Science and Nutrition, University of Campinas (UNICAMP), Rua Monteiro Lobato, 80, Campinas, SP, 13083-862, Brazil.
| | | | - Adewole Tomiwa Adetunji
- Department of Agriculture, Faculty of Applied Sciences, Cape Peninsula University of Technology, Wellington, Western Cape, 7654, South Africa
| | - Odunayo T Ore
- Department of Chemistry, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - Yemisi Juliet Ayantunji
- Department of Microbiology, Obafemi Awolowo University, Ile-Ife, Nigeria
- Advanced Space Technology Applications Laboratory, Cooperative Information Network, National Space Research and Development Agency, Ile-Ife, P.M.B. 022, Nigeria
| | - Richard Kolade Omole
- Department of Microbiology, Obafemi Awolowo University, Ile-Ife, Nigeria
- Microbiology Unit, Department of Applied Sciences, Osun State College of Technology, Esa-Oke, Nigeria
| | - Damilare Ajagbe
- Department of Microbiology and Molecular Genetics, Oklahoma State University, Oklahoma, USA
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Composition of bacterial community and isolation of bacteria responsible for diuron degradation in sediment and soil under anaerobic condition. Arch Microbiol 2022; 204:418. [PMID: 35737117 DOI: 10.1007/s00203-022-03040-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 05/25/2022] [Accepted: 05/27/2022] [Indexed: 11/02/2022]
Abstract
The herbicide diuron is extensively used in the agriculture sector and is detected widely in the environment. Although several studies on the degradation of diuron by aerobic microorganisms have been reported, the degradation of diuron by anaerobic microorganisms has not been received much attention. Also, no pure culture that can degrade diuron under anaerobic conditions has yet been reported. The evaluation of diuron degradation in the soil and sediment slurries showed that diuron led to a decrease in the biodiversity of the bacterial communities. Two mixed bacterial cultures, one from the soil and the other from sediment slurries, were isolated from the enrichment media under anaerobic conditions. After 30 days of incubation at 30 °C, the mixed bacterial culture from the soil degraded 84.5 ± 5.5%, and that from the sediment slurry degraded 94.5 ± 3.0% of diuron in liquid mineral medium at an initial concentration of 20 mg/L. 1-(3,4-dichlorophenylurea (DCPU), 3-(3-chlorophenyl)-1,1-dimethylurea (CPDMU), and 3,4-dichloroaniline (3,4-DCA) were the major diuron metabolites produced by both the indigenous microorganisms and the isolated bacteria.
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Redman AD, Bietz J, Davis JW, Lyon D, Maloney E, Ott A, Otte JC, Palais F, Parsons JR, Wang N. Moving persistence assessments into the 21st century: A role for weight-of-evidence and overall persistence. INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT 2022; 18:868-887. [PMID: 34730270 PMCID: PMC9299815 DOI: 10.1002/ieam.4548] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 10/06/2021] [Accepted: 10/21/2021] [Indexed: 05/29/2023]
Abstract
Assessing the persistence of chemicals in the environment is a key element in existing regulatory frameworks to protect human health and ecosystems. Persistence in the environment depends on many fate processes, including abiotic and biotic transformations and physical partitioning, which depend on substances' physicochemical properties and environmental conditions. A main challenge in persistence assessment is that existing frameworks rely on simplistic and reductionist evaluation schemes that may lead substances to be falsely assessed as persistent or the other way around-to be falsely assessed as nonpersistent. Those evaluation schemes typically assess persistence against degradation half-lives determined in single-compartment simulation tests or against degradation levels measured in stringent screening tests. Most of the available test methods, however, do not apply to all types of substances, especially substances that are poorly soluble, complex in composition, highly sorptive, or volatile. In addition, the currently applied half-life criteria are derived mainly from a few legacy persistent organic pollutants, which do not represent the large diversity of substances entering the environment. Persistence assessment would undoubtedly benefit from the development of more flexible and holistic evaluation schemes including new concepts and methods. A weight-of-evidence (WoE) approach incorporating multiple influencing factors is needed to account for chemical fate and transformation in the whole environment so as to assess overall persistence. The present paper's aim is to begin to develop an integrated assessment framework that combines multimedia approaches to organize and interpret data using a clear WoE approach to allow for a more consistent, transparent, and thorough assessment of persistence. Integr Environ Assess Manag 2022;18:868-887. © 2021 ExxonMobil Biomedical Sciences, Inc. Integrated Environmental Assessment and Management published by Wiley Periodicals LLC on behalf of Society of Environmental Toxicology & Chemistry (SETAC).
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Affiliation(s)
| | - Jens Bietz
- Clariant Produkte (Deutschland) GmbHSulzbachGermany
| | - John W. Davis
- Dow, Inc.MidlandMichiganUSA
- John Davis Consulting, LLCMidlandMichiganUSA
| | | | | | - Amelie Ott
- Newcastle University, School of EngineeringNewcastle upon TyneUK
- European Centre for Ecotoxicology and Toxicology of Chemicals (ECETOC)BrusselsBelgium
| | | | - Frédéric Palais
- SOLVAY, HSE PRA‐PS, RICL—Antenne de GenasSaint‐FonsCedexFrance
| | - John R. Parsons
- Institute for Biodiversity and Ecosystem DynamicsUniversity of AmsterdamAmsterdamThe Netherlands
| | - Neil Wang
- TotalEnergies Marketing & ServicesParis la DéfenseFrance
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46
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Mei X, Chen S, Wang G, Chen W, Lu W, Zhang B, Fang Y, Qi C. Metal-free carboxyl modified g-C3N4 for enhancing photocatalytic degradation activity of organic pollutants through peroxymonosulfate activation in wastewater under solar radiation. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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47
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Carstensen L, Beil S, Börnick H, Stolte S. Structure-related endocrine-disrupting potential of environmental transformation products of benzophenone-type UV filters: A review. JOURNAL OF HAZARDOUS MATERIALS 2022; 430:128495. [PMID: 35739676 DOI: 10.1016/j.jhazmat.2022.128495] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 02/11/2022] [Accepted: 02/12/2022] [Indexed: 06/15/2023]
Abstract
Benzophenone-type UV filters (BPs) represent a very diverse group of chemicals that are used across a range of industrial sectors around the world. They are found within different environmental compartments (e.g. surface water, groundwater, wastewater, sediments and biota) at concentrations ranging from ng/L to mg/L. Some are known as endocrine disruptors and are currently within the scope of international regulations. A structural alert for high potential of endocrine disrupting activity was assigned to 11 BP derivatives. Due to the widespread use, distribution and disruptive effects of some BPs, knowledge of their elimination pathways is required. This review demonstrates that biodegradation and photolytic decomposition are the major elimination processes for BP-type UV filters in the environment. Under aerobic conditions, transformation pathways have only been reported for BP, BP-3 and BP-4, which are also the most common derivatives. Primary biodegradation mainly results in the formation of hydroxylated BPs, which exhibit a structure-related increase in endocrine activity when compared to their parent substances. By combining 76 literature-based transformation products (TPs) with in silico results relating to their receptor activity, it is demonstrated that 32 TPs may retain activity and that further knowledge of the degradation of BPs in the environment is needed.
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Affiliation(s)
- Lale Carstensen
- Institute of Water Chemistry, Technische Universität Dresden, 01069 Dresden, Germany
| | - Stephan Beil
- Institute of Water Chemistry, Technische Universität Dresden, 01069 Dresden, Germany
| | - Hilmar Börnick
- Institute of Water Chemistry, Technische Universität Dresden, 01069 Dresden, Germany
| | - Stefan Stolte
- Institute of Water Chemistry, Technische Universität Dresden, 01069 Dresden, Germany.
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48
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Luo C, Hu X, Bao M, Sun X, Li F, Li Y, Liu W, Yang Y. Efficient biodegradation of phenanthrene using Pseudomonas stutzeri LSH-PAH1 with the addition of sophorolipids: Alleviation of biotoxicity and cometabolism studies. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 301:119011. [PMID: 35182655 DOI: 10.1016/j.envpol.2022.119011] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 02/04/2022] [Accepted: 02/14/2022] [Indexed: 06/14/2023]
Abstract
Phenanthrene (PHE) is widely distributed, and it can cause genotoxicity in humans by interacting with enzymes in the body. A current challenge for PHE bioremediation is the inhibitory effect of biotoxic intermediates on bacterial growth. Notably, the aerobic biotransformation processes for PHE in the presence of sophorolipids have been poorly studied. Here, a PHE-degrading strain was isolated from sediments and identified as Pseudomonas stutzeri and named LSH-PAH1. It was observed that 1-naphthol (a biotoxic substance that can inhibit strain growth) was produced during the PHE metabolism process of LSH-PAH1. The biodegradation ratio increased from 21.4% to 91.7% within 48 h after the addition of sophorolipids. Unexpectedly, this addition accelerated the metabolic process for 1-naphthol rather than causing its accumulation. The cometabolism of 1-naphthol and sophorolipids alleviated the biotoxic effects for the strain, which was verified by gene expression analysis. We identified a new PHE-degrading strain and provided a mechanism for PHE biodegradation using LSH-PAH1 with the addition of sophorolipids, which provides a reference for practical applications of the bioremediation of PHE and study of the cometabolism of biotoxic intermediates.
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Affiliation(s)
- Chengyi Luo
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, And Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China; College of Chemistry & Chemical Engineering, Ocean University of China, Qingdao, 266100, PR China
| | - Xin Hu
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, And Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China; College of Chemistry & Chemical Engineering, Ocean University of China, Qingdao, 266100, PR China
| | - Mutai Bao
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, And Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China; College of Chemistry & Chemical Engineering, Ocean University of China, Qingdao, 266100, PR China.
| | - Xiaojun Sun
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, And Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China; College of Chemistry & Chemical Engineering, Ocean University of China, Qingdao, 266100, PR China
| | - Fengshu Li
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, And Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China; College of Chemistry & Chemical Engineering, Ocean University of China, Qingdao, 266100, PR China
| | - Yiming Li
- Frontiers Science Center for Deep Ocean Multispheres and Earth System, And Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China; College of Chemistry & Chemical Engineering, Ocean University of China, Qingdao, 266100, PR China
| | - Wenxiu Liu
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266100, PR China
| | - Yan Yang
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266100, PR China
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Wang X, Cheng B, Zhang L, Yu J, Li Y. Synthesis of MgNiCo LDH hollow structure derived from ZIF-67 as superb adsorbent for Congo red. J Colloid Interface Sci 2022; 612:598-607. [PMID: 35016020 DOI: 10.1016/j.jcis.2021.12.176] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/25/2021] [Accepted: 12/27/2021] [Indexed: 11/30/2022]
Abstract
Adsorption materials with large specific surface area and porous structures exert a beneficial impact on improving the adsorption performance. In this work, MgNiCo LDH hollow structure (MNC HS) is fabricated through a simple one-step solvothermal method using ZIF-67 as the sacrificial template. Electron microscopy shows that the MNC HS retains the dodecahedral shape of ZIF-67. The as-prepared sample exhibits efficient adsorption for Congo red (CR) in water, which is due to the hierarchical structure and large specific surface area that provides more adsorption sites and electrostatic interaction. The CR adsorption process fits the pseudo-second-order model better by kinetics simulation; while Langmuir model is more accurate than Freundlich model in describing the adsorption isotherms of CR. The maximum adsorption capacity calculated by the Langmuir model can reach 1194.7 mg g-1, which is much higher than that of the sample MgNiCo LDH (MNC) synthesized by conventional methods. The cycle tests also show that the as-prepared adsorbent has good stability and recycling ability.
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Affiliation(s)
- Xing Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China
| | - Bei Cheng
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China
| | - Liuyang Zhang
- Laboratory of Solar Fuel, Faculty of Materials Science and Chemistry, China University of Geosciences, 388 Lumo Road, Wuhan 430074, PR China.
| | - Jiaguo Yu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China; Laboratory of Solar Fuel, Faculty of Materials Science and Chemistry, China University of Geosciences, 388 Lumo Road, Wuhan 430074, PR China.
| | - Youji Li
- College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, Hunan, PR China
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50
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Yu Q, Yang X, Zhao F, Hu X, Ren H, Geng J. Occurrence and removal of progestogens from wastewater treatment plants in China: Spatiotemporal variation and process comparison. WATER RESEARCH 2022; 211:118038. [PMID: 35045367 DOI: 10.1016/j.watres.2022.118038] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 12/27/2021] [Accepted: 12/30/2021] [Indexed: 06/14/2023]
Abstract
This study investigated the overall occurrence and spatiotemporal variation of 19 progestogens in 608 samples collected from 17 wastewater treatment plants (WWTPs) distributed across China during four seasons. The aqueous removal efficiencies of progestogens were calculated and the efficacies of process segments, secondary and advanced processes, and process units in the removal of progestogens were explored. The results indicated that progestogens were widely detected in investigating WWTPs, with the progesterone, dydrogesterone, dienogest, ethisterone, and norethindrone were always dominant in the influent, secondary effluent, final effluent, and excess sludge. Seasonally, the influent exhibited more variability than the other matrices, that 10 progestogens concentrations varied significantly during the four seasons. Spatially, the influent concentrations of progestogens were generally higher in northern WWTPs than that in southern WWTPs during spring and summer. Eight progestogens were stably removed by the WWTPs across seasons, and most progestogens varied considerably in removal in different WWTPs. The conventional process segment was the dominant contributor to progestogen removal. The anaerobic-anoxic-oxic process and a combined process consisting of densadeg and cloth media filter and ultraviolet disinfection showed the highest removal of progestogens among various secondary and advanced treatment processes, respectively. Mass balance analysis showed that most progestogens were effectively eliminated in the aerobic unit, with biodegradation being the primary removal pathway. This study presents the first picture of the spatiotemporal dynamics of the distribution of progestogens in WWTPs of China and provides valuable information for better understanding of the occurrence and removal of progestogens in WWTPs.
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Affiliation(s)
- Qingmiao Yu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, No. 163 Xianlin Avenue, Qixia District, Nanjing, Jiangsu 210023, China
| | - Xudong Yang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, No. 163 Xianlin Avenue, Qixia District, Nanjing, Jiangsu 210023, China
| | - Fuzheng Zhao
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Anning West Road No. 88, Lanzhou 730070, China
| | - Xianda Hu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, No. 163 Xianlin Avenue, Qixia District, Nanjing, Jiangsu 210023, China
| | - Hongqiang Ren
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, No. 163 Xianlin Avenue, Qixia District, Nanjing, Jiangsu 210023, China
| | - Jinju Geng
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, No. 163 Xianlin Avenue, Qixia District, Nanjing, Jiangsu 210023, China.
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