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Hong JK, Kim SB, Wee GN, Kang BR, No JH, Nishu SD, Park J, Lee TK. Assessing long-term ecological impacts of PCE contamination in groundwater using a flow cytometric fingerprint approach. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 931:172698. [PMID: 38688365 DOI: 10.1016/j.scitotenv.2024.172698] [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: 12/12/2023] [Revised: 04/09/2024] [Accepted: 04/21/2024] [Indexed: 05/02/2024]
Abstract
This study aims to develop and validate a comprehensive method for assessing ecological disturbances in groundwater ecosystems caused by tetrachloroethylene (PCE) contamination, utilizing flow cytometry (FCM) fingerprint approach. We hypothesized that the ecological disturbance resulting from PCE contamination would exhibit 'press disturbance', persisting over extended periods, and inducing notable phenotypic differences in the microbial community compared to undisturbed groundwater. We collected 40 groundwater samples from industrial district with a history of over twenty years of PCE contamination, along with 56 control groundwater from the national surveillance groundwater system. FCM revealed significant alterations in the phenotypic diversity of microbial communities in PCE-contaminated groundwater, particularly during the dry season. The presence of specific dechlorinating bacteria (Dehalococcoides, Dehalogenimonas, and Geobacter) and their syntrophic partners was identified as an indicator of contamination. Phenotypic diversity measures provided clearer and more direct reflections of contamination impact compared to taxonomic diversity measures. This study establishes FCM fingerprinting as a simple, robust, and accurate method for evaluating ecological disturbances, with potential applications in early warning systems and continuous monitoring of groundwater contamination. The findings not only underscore the sensitivity of FCM in detecting phenotypic variations induced by environmental stressors but also highlight its utility in understanding the complex dynamics of microbial communities in contaminated groundwater ecosystems.
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Affiliation(s)
- Jin-Kyung Hong
- Department of Environmental and Energy Engineering, Yonsei University, Wonju 26493, Republic of Korea
| | - Soo Bin Kim
- Department of Environmental and Energy Engineering, Yonsei University, Wonju 26493, Republic of Korea
| | - Gui Nam Wee
- Department of Environmental and Energy Engineering, Yonsei University, Wonju 26493, Republic of Korea
| | - Bo Ram Kang
- Department of Environmental and Energy Engineering, Yonsei University, Wonju 26493, Republic of Korea
| | - Jee Hyun No
- Department of Environmental and Energy Engineering, Yonsei University, Wonju 26493, Republic of Korea
| | - Susmita Das Nishu
- Department of Environmental and Energy Engineering, Yonsei University, Wonju 26493, Republic of Korea
| | - Joonhong Park
- Department of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Tae Kwon Lee
- Department of Environmental and Energy Engineering, Yonsei University, Wonju 26493, Republic of Korea.
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Wu S, Yang Y, Ma Z, Feng F, Xu X, Deng S, Han X, Xi B, Jiang Y. Co-migration behavior of toluene coupled with trichloroethylene and the response of the pristine groundwater ecosystems - A mesoscale indoor experiment. JOURNAL OF HAZARDOUS MATERIALS 2024; 471:134248. [PMID: 38636237 DOI: 10.1016/j.jhazmat.2024.134248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 03/15/2024] [Accepted: 04/08/2024] [Indexed: 04/20/2024]
Abstract
Experimental scale and sampling precision are the main factors limiting the accuracy of migration and transformation assessments of complex petroleum-based contaminants in groundwater. In this study, a mesoscale indoor aquifer device with high environmental fidelity and monitoring accuracy was constructed, in which dissolved toluene and trichloroethylene were used as typical contaminants in a 1.5-year contaminant migration experiment. The process was divided into five stages, namely, pristine, injection, accumulation, decrease, and recovery, and characteristics such as differences in contaminant migration, the responsiveness of environmental factors, and changes in microbial communities were investigated. The results demonstrated that the mutual dissolution properties of the contaminants increased the spread of the plume and confirmed that toluene possessed greater mobility and natural attenuation than trichloroethylene. Attenuation of the contaminant plume proceeded through aerobic degradation, nitrate reduction, and sulfate reduction phases, accompanied by negative feedback from characteristic ion concentrations, dissolved oxygen content, the oxidation-reduction potential and microbial community structure of the groundwater. This research evaluated the migration and transformation characteristics of typical petroleum-based pollutants, revealed the response mechanism of the ecosystem to pollutant, provided a theoretical basis for predicting pollutant migration and formulating control strategies.
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Affiliation(s)
- Shuxuan Wu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; College of Water Sciences, Beijing Normal University, Beijing 100875, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Yu Yang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Zhifei Ma
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources & Environment, Nanchang University, Nanchang 330031, China
| | - Fan Feng
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; College of Water Sciences, Beijing Normal University, Beijing 100875, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Xiangjian Xu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Sheng Deng
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Xu Han
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Beidou Xi
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Yonghai Jiang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; College of Water Sciences, Beijing Normal University, Beijing 100875, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
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Zhang Z, Ali M, Tang Z, Sun Q, Wang Q, Liu X, Yin L, Yan S, Xu M, Coulon F, Song X. Unveiling complete natural reductive dechlorination mechanisms of chlorinated ethenes in groundwater: Insights from functional gene analysis. JOURNAL OF HAZARDOUS MATERIALS 2024; 469:134034. [PMID: 38521036 DOI: 10.1016/j.jhazmat.2024.134034] [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: 12/22/2023] [Revised: 02/22/2024] [Accepted: 03/12/2024] [Indexed: 03/25/2024]
Abstract
Monitored natural attenuation (MNA) of chlorinated ethenes (CEs) has proven to be a cost-effective and environment-friendly approach for groundwater remediation. In this study, the complete dechlorination of CEs with formation of ethene under natural conditions, were observed at two CE-contaminated sites, including a pesticide manufacturing facility (PMF) and a fluorochemical plant (FCP), particularly in the deeply weathered bedrock aquifer at the FCP site. Additionally, a higher abundance of CE-degrading bacteria was identified with heightened dechlorination activities at the PMF site, compared to the FCP site. The reductive dehalogenase genes and Dhc 16 S rRNA gene were prevalent at both sites, even in groundwater where no CE dechlorination was observed. vcrA and bvcA was responsible for the complete dechlorination at the PMF and FCP site, respectively, indicating the distinct contributions of functional microbial species at each site. The correlation analyses suggested that Sediminibacterium has the potential to achieve the complete dechlorination at the FCP site. Moreover, the profiles of CE-degrading bacteria suggested that dechlorination occurred under Fe3+/sulfate-reducing and nitrate-reducing conditions at the PMF and FCP site, respectively. Overall these findings provided multi-lines of evidence on the diverse mechanisms of CE-dechlorination under natural conditions, which can provide valuable guidance for MNA strategies implementation.
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Affiliation(s)
- Zhuanxia Zhang
- Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mukhtiar Ali
- Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhiwen Tang
- Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qi Sun
- Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Qing Wang
- Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Xin Liu
- Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Lipu Yin
- China State Science Dingshi Environmental Engineering CO., LTD, Beijing, China
| | - Song Yan
- China State Science Dingshi Environmental Engineering CO., LTD, Beijing, China
| | - Minmin Xu
- Shandong Academy of Environmental Sciences Co., LTD, Jinan 250013, China
| | - Frederic Coulon
- School of Water, Energy and Environment, Cranfield University, Cranfield MK43 0AL, UK
| | - Xin Song
- Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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Wu Z, Man Q, Niu H, Lyu H, Song H, Li R, Ren G, Zhu F, Peng C, Li B, Ma X. Recent advances and trends of trichloroethylene biodegradation: A critical review. Front Microbiol 2022; 13:1053169. [PMID: 36620007 PMCID: PMC9813602 DOI: 10.3389/fmicb.2022.1053169] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 12/02/2022] [Indexed: 12/24/2022] Open
Abstract
Trichloroethylene (TCE) is a ubiquitous chlorinated aliphatic hydrocarbon (CAH) in the environment, which is a Group 1 carcinogen with negative impacts on human health and ecosystems. Based on a series of recent advances, the environmental behavior and biodegradation process on TCE biodegradation need to be reviewed systematically. Four main biodegradation processes leading to TCE biodegradation by isolated bacteria and mixed cultures are anaerobic reductive dechlorination, anaerobic cometabolic reductive dichlorination, aerobic co-metabolism, and aerobic direct oxidation. More attention has been paid to the aerobic co-metabolism of TCE. Laboratory and field studies have demonstrated that bacterial isolates or mixed cultures containing Dehalococcoides or Dehalogenimonas can catalyze reductive dechlorination of TCE to ethene. The mechanisms, pathways, and enzymes of TCE biodegradation were reviewed, and the factors affecting the biodegradation process were discussed. Besides, the research progress on material-mediated enhanced biodegradation technologies of TCE through the combination of zero-valent iron (ZVI) or biochar with microorganisms was introduced. Furthermore, we reviewed the current research on TCE biodegradation in field applications, and finally provided the development prospects of TCE biodegradation based on the existing challenges. We hope that this review will provide guidance and specific recommendations for future studies on CAHs biodegradation in laboratory and field applications.
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Affiliation(s)
- Zhineng Wu
- School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, China
| | - Quanli Man
- School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, China
| | - Hanyu Niu
- School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, China
| | - Honghong Lyu
- School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, China
| | - Haokun Song
- School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, China
| | - Rongji Li
- School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, China
| | - Gengbo Ren
- School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, China
| | - Fujie Zhu
- School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, China
| | - Chu Peng
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin, China
| | - Benhang Li
- School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, China
| | - Xiaodong Ma
- School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, China,*Correspondence: Xiaodong Ma,
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Chen YC, Chang JE. Removal of chlorine-contaminated groundwater by two-stage ozonation and biostimulation methods. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 317:115417. [PMID: 35653838 DOI: 10.1016/j.jenvman.2022.115417] [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: 03/02/2022] [Revised: 05/07/2022] [Accepted: 05/24/2022] [Indexed: 06/15/2023]
Abstract
Trichloroethene (TCE) contamination is a critical environmental hazard, and the substrate options for its biostimulated remediation are limited. This study applied an ozonation-and-biostimulation process to remove TCE from groundwater. The substrate used, denoted as Transferred Energy Element (TEE), was composed of natural organic materials and had a low viscosity (2.914 cP). Ten batch experiments were conducted through the application of micro-nano bubbles (MNBs) and substrates (TEE and EOS® [emulsified oil substrate]). MNBs with an average diameter of 157.5-180.8 nm effectively degraded TCE and dichloroethane within 6 min. Biostimulation using the TEE substrate effectively degraded both TCE and vinyl chloride pollutants and reached a steady state after 25 days. The two-stage dechlorination procedure with MNB treatment as the first stage enhanced TCE removal via biostimulation. MNBs reduced the TCE concentration in the first 20 min, but increased the chloride (Cl-) concentration over the following five days (∼80 mg/L). The procedure with biostimulation as the first stage and 20 min ozonation as the second stage reduced the Cl- concentration by ∼10 mg/L. The Cl- concentrations rebounded after day 25 in the EOS environment. X-ray diffraction revealed that the released Na+ from the TEE settled with Cl- as minerals in the soil. The novel two-stage method for TCE removal was found to be more effective than solo MNB treatment or biostimulation.
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Affiliation(s)
- Ying-Chu Chen
- Department of Civil Engineering, National Taipei University of Technology, Taipei City, 106, Taiwan, ROC.
| | - Jui-En Chang
- Institute of Environmental Engineering and Management, National Taipei University of Technology, Taipei City, 106, Taiwan, ROC
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Chelating Agents in Assisting Phytoremediation of Uranium-Contaminated Soils: A Review. SUSTAINABILITY 2022. [DOI: 10.3390/su14106379] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Massive stockpiles of uranium (U) mine tailings have resulted in soil contamination with U. Plants for soil remediation have low extraction efficiency of U. Chelating agents can mobilize U in soils and, hence, enhance phytoextraction of U from the soil. However, the rapid mobilization rate of soil U by chelating agents in a short period than plant uptake rate could increase the risk of groundwater contamination with soluble U leaching down the soil profile. This review summarizes recent progresses in synthesis and application of chelating agents for assisting phytoremediation of U-contaminated soils. In detail, the interactions between chelating agents and U ions are initially elucidated. Subsequently, the mechanisms of phytoextraction and effectiveness of different chelating agents for phytoremediation of U-contaminated soils are given. Moreover, the potential risks associated with chelating agents are discussed. Finally, the synthesis and application of slow-release chelating agents for slowing down metal mobilization in soils are presented. The application of slow-release chelating agents for enhancing phytoextraction of soil U is still scarce. Hence, we propose the preparation of slow-release biodegradable chelating agents, which can control the release speed of chelating agent into the soil in order to match the mobilization rate of soil U with plant uptake rate, while diminishing the risk of residual chelating agent leaching to groundwater.
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Ni Z, Wang Y, Wang Y, Chen S, Xie M, Grotenhuis T, Qiu R. Comparative Life-Cycle Assessment of Aquifer Thermal Energy Storage Integrated with in Situ Bioremediation of Chlorinated Volatile Organic Compounds. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:3039-3049. [PMID: 32022549 DOI: 10.1021/acs.est.9b07020] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Due to the increasing need for sustainable energy and environmental quality in urban areas, the combination of aquifer thermal energy storage (ATES) and in situ bioremediation (ISB) has drawn much attention as it can deliver an integrated contribution to fulfill both demands. Yet, little is known about the overall environmental impacts of ATES-ISB. Hence, we applied a life-cycle assessment (LCA) to evaluate the environmental performance of ATES-ISB, which is also compared with the conventional heating and cooling system plus ISB alone (CHC + ISB). Energy supply via electricity is revealed as the primary cause of the environmental impacts, contributing 61.26% impacts of ATES-ISB and 72.91% impacts of CHC + ISB. Specifically, electricity is responsible for over 95% of water use, global warming potential, acidification potential, and respiratory inorganics, whereas the production of the biological medium for bioremediation causes more than 85% of the eco- and human toxicity impacts in both cases. The overall environmental impact of ATES-ISB is two times smaller than that of CHC + ISB. Sensitivity analysis confirms the importance of electricity consumption and electron donor production to the environmental impacts in both energy supply and bioremediation. Thus, future studies and practical applications seeking possible optimization of the environmental performances of ATES-ISB are recommended to focus more on these two essential elements, e.g., electricity and electron donor, and their related parameters. With the comprehensive LCA, insight is obtained for better characterizing the crucial factors as well as the relevant direction for future optimization research of the ATES-ISB system.
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Affiliation(s)
- Zhuobiao Ni
- School of Environmental Science and Engineering, Sun Yat-sen University, 135 Xingang Xi Road, 510275 Guangzhou, China
- Guangdong Provincial Key Lab of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, 135 Xingang Xi Road, 510275 Guangzhou, China
| | - Yue Wang
- School of Environmental Science and Engineering, Sun Yat-sen University, 135 Xingang Xi Road, 510275 Guangzhou, China
| | - Yafei Wang
- School of Environmental Science and Engineering, Sun Yat-sen University, 135 Xingang Xi Road, 510275 Guangzhou, China
- Guangdong Provincial Key Lab of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, 135 Xingang Xi Road, 510275 Guangzhou, China
| | - Shaoqing Chen
- School of Environmental Science and Engineering, Sun Yat-sen University, 135 Xingang Xi Road, 510275 Guangzhou, China
- Guangdong Provincial Key Lab of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, 135 Xingang Xi Road, 510275 Guangzhou, China
| | - Manxi Xie
- School of Environmental Science and Engineering, Sun Yat-sen University, 135 Xingang Xi Road, 510275 Guangzhou, China
| | - Tim Grotenhuis
- Environmental Technology, Wageningen University, Bornse Weilanden 9, 6708 WG Wageningen, the Netherlands
| | - Rongliang Qiu
- School of Environmental Science and Engineering, Sun Yat-sen University, 135 Xingang Xi Road, 510275 Guangzhou, China
- Guangdong Provincial Key Lab of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, 135 Xingang Xi Road, 510275 Guangzhou, China
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Liu N, Ding L, Li H, Zhang P, Zheng J, Weng CH. Stable carbon isotope fractionation of chlorinated ethenes by a microbial consortium containing multiple dechlorinating genes. BIORESOURCE TECHNOLOGY 2018; 261:133-141. [PMID: 29656226 DOI: 10.1016/j.biortech.2018.04.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 04/02/2018] [Accepted: 04/04/2018] [Indexed: 06/08/2023]
Abstract
The study aimed to determine the possible contribution of specific growth conditions and community structures to variable carbon enrichment factors (Ɛ-carbon) values for the degradation of chlorinated ethenes (CEs) by a bacterial consortium with multiple dechlorinating genes. Ɛ-carbon values for trichloroethylene, cis-1,2-dichloroethylene, and vinyl chloride were -7.24% ± 0.59%, -14.6% ± 1.71%, and -21.1% ± 1.14%, respectively, during their degradation by a microbial consortium containing multiple dechlorinating genes including tceA and vcrA. The Ɛ-carbon values of all CEs were not greatly affected by changes in growth conditions and community structures, which directly or indirectly affected reductive dechlorination of CEs by this consortium. Stability analysis provided evidence that the presence of multiple dechlorinating genes within a microbial consortium had little effect on carbon isotope fractionation, as long as the genes have definite, non-overlapping functions.
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Affiliation(s)
- Na Liu
- College of Environment and Resources, Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, China
| | - Longzhen Ding
- College of Environment and Resources, Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, China
| | - Haijun Li
- Sichuan University of Science & Engineering, Sichuan, China
| | - Pengpeng Zhang
- College of Environment and Resources, Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, China
| | - Jixing Zheng
- College of Environment and Resources, Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, China
| | - Chih-Huang Weng
- Department of Civil and Ecological Engineering, I-Shou University, Kaohsiung City 84008, Taiwan.
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O'Connor D, Hou D, Ok YS, Song Y, Sarmah AK, Li X, Tack FM. Sustainable in situ remediation of recalcitrant organic pollutants in groundwater with controlled release materials: A review. J Control Release 2018; 283:200-213. [DOI: 10.1016/j.jconrel.2018.06.007] [Citation(s) in RCA: 138] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 06/02/2018] [Accepted: 06/04/2018] [Indexed: 11/29/2022]
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Němeček J, Dolinová I, Macháčková J, Špánek R, Ševců A, Lederer T, Černík M. Stratification of chlorinated ethenes natural attenuation in an alluvial aquifer assessed by hydrochemical and biomolecular tools. CHEMOSPHERE 2017; 184:1157-1167. [PMID: 28672697 DOI: 10.1016/j.chemosphere.2017.06.100] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 06/22/2017] [Accepted: 06/23/2017] [Indexed: 06/07/2023]
Abstract
Biomolecular and hydrochemical tools were used to evaluate natural attenuation of chlorinated ethenes in a Quaternary alluvial aquifer located close to a historical source of large-scale tetrachloroethylene (PCE) contamination. Distinct stratification of redox zones was observed, despite the aquifer's small thickness (2.8 m). The uppermost zone of the target aquifer was characterised by oxygen- and nitrate-reducing conditions, with mixed iron- to sulphate-reducing conditions dominant in the lower zone, along with indications of methanogenesis. Natural attenuation of PCE was strongly influenced by redox heterogeneity, while higher levels of PCE degradation coincided with iron- to sulphate reducing conditions. Next generation sequencing of the middle and/or lower zones identified anaerobic bacteria (Firmicutes, Chloroflexi, Actinobacteria and Bacteroidetes) associated with reductive dechlorination. The relative abundance of dechlorinators (Dehalococcoides mccartyi, Dehalobacter sp.) identified by real-time PCR in soil from the lower levels supports the hypothesis that there is a significant potential for reductive dechlorination of PCE. Local conditions were insufficiently reducing for rapid complete dechlorination of PCE to harmless ethene. For reliable assessment of natural attenuation, or when designing monitoring or remedial systems, vertical stratification of key biological and hydrochemical markers should be analysed as standard, even in shallow aquifers.
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Affiliation(s)
- Jan Němeček
- Technical University of Liberec, Studentská 2, CZ-461 17, Liberec, Czech Republic; ENACON s.r.o., Krčská 16, CZ-140 00, Prague 4, Czech Republic.
| | - Iva Dolinová
- Technical University of Liberec, Studentská 2, CZ-461 17, Liberec, Czech Republic
| | - Jiřina Macháčková
- Technical University of Liberec, Studentská 2, CZ-461 17, Liberec, Czech Republic
| | - Roman Špánek
- Technical University of Liberec, Studentská 2, CZ-461 17, Liberec, Czech Republic
| | - Alena Ševců
- Technical University of Liberec, Studentská 2, CZ-461 17, Liberec, Czech Republic
| | - Tomáš Lederer
- Technical University of Liberec, Studentská 2, CZ-461 17, Liberec, Czech Republic
| | - Miroslav Černík
- Technical University of Liberec, Studentská 2, CZ-461 17, Liberec, Czech Republic
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Liu N, Li H, Li M, Ding L, Weng CH, Dong CD. Oxygen exposure effects on the dechlorinating activities of a trichloroethene-dechlorination microbial consortium. BIORESOURCE TECHNOLOGY 2017; 240:98-105. [PMID: 28274623 DOI: 10.1016/j.biortech.2017.02.112] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 02/23/2017] [Accepted: 02/24/2017] [Indexed: 06/06/2023]
Abstract
The aim of this work was to study the effects of the presence of oxygen on the dechlorination of trichloroethene by a microbial consortium containing D. mccartyi. The 16S rRNA and reductive dechlorination genes of the functional bacteria and the non-dechlorinators were monitored. Exposing the consortium to oxygen altered the overall biotransformation rate of the dechlorination process, biotransformation processes prolonged with oxygen concentrations changing from 0 to 7.2mg/L, however, trichloroethylene was eventually dechlorinated to ethene. The qPCR analyses revealed that the D. mccartyi strains containing the tceA gene were less sensitive to exposure to oxygen than were the D. mccartyi strains containing the vcrA gene. High-throughput sequencing by Illumina MiSeq indicated that the non-dechlorinating organisms were probably crucial to scavenge the oxygen to protect D. mccartyi from being damaged.
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Affiliation(s)
- Na Liu
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, China
| | - Haijun Li
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, China
| | - Mengyan Li
- Department of Chemistry and Environment Science, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Longzhen Ding
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, China
| | - Chih-Huang Weng
- Department of Civil and Ecological Engineering, I-Shou University, Kaohsiung City 84008, Taiwan.
| | - Cheng-Di Dong
- Department of Marine Environment Engineering, National Kaohsiung Marine University, Kaohsiung 81157, Taiwan
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Atashgahi S, Lu Y, Zheng Y, Saccenti E, Suarez-Diez M, Ramiro-Garcia J, Eisenmann H, Elsner M, J.M. Stams A, Springael D, Dejonghe W, Smidt H. Geochemical and microbial community determinants of reductive dechlorination at a site biostimulated with glycerol. Environ Microbiol 2016; 19:968-981. [DOI: 10.1111/1462-2920.13531] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Accepted: 09/12/2016] [Indexed: 01/01/2023]
Affiliation(s)
- Siavash Atashgahi
- Flemish Institute for Technological Research (VITO), Separation and Conversion Technology; Boeretang 200, 2400 Mol Belgium
- Laboratory of Microbiology; Wageningen University & Research; Wageningen The Netherlands
- Division of Soil and Water Management; KU Leuven; Kasteelpark Arenberg 20 Heverlee B-3001 Belgium
| | - Yue Lu
- Laboratory of Microbiology; Wageningen University & Research; Wageningen The Netherlands
| | - Ying Zheng
- Laboratory of Microbiology; Wageningen University & Research; Wageningen The Netherlands
| | - Edoardo Saccenti
- Laboratory of Systems and Synthetic Biology; Wageningen University & Research; Wageningen The Netherlands
| | - Maria Suarez-Diez
- Laboratory of Systems and Synthetic Biology; Wageningen University & Research; Wageningen The Netherlands
| | - Javier Ramiro-Garcia
- Laboratory of Microbiology; Wageningen University & Research; Wageningen The Netherlands
- Laboratory of Systems and Synthetic Biology; Wageningen University & Research; Wageningen The Netherlands
| | | | - Martin Elsner
- Institute of Groundwater Ecology, Helmholtz Zentrum München-National Research Center for Environmental Health; Ingolstädter Landstrasse 1 Neuherberg D-85764 Germany
| | - Alfons J.M. Stams
- Laboratory of Microbiology; Wageningen University & Research; Wageningen The Netherlands
- Centre of Biological Engineering; University of Minho; Braga Portugal
| | - Dirk Springael
- Division of Soil and Water Management; KU Leuven; Kasteelpark Arenberg 20 Heverlee B-3001 Belgium
| | - Winnie Dejonghe
- Flemish Institute for Technological Research (VITO), Separation and Conversion Technology; Boeretang 200, 2400 Mol Belgium
| | - Hauke Smidt
- Laboratory of Microbiology; Wageningen University & Research; Wageningen The Netherlands
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13
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Wang SY, Chen SC, Lin YC, Kuo YC, Chen JY, Kao CM. Acidification and sulfide formation control during reductive dechlorination of 1,2-dichloroethane in groundwater: Effectiveness and mechanistic study. CHEMOSPHERE 2016; 160:216-229. [PMID: 27376861 DOI: 10.1016/j.chemosphere.2016.06.066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 03/21/2016] [Accepted: 06/17/2016] [Indexed: 06/06/2023]
Abstract
To enhance the reductive dechlorination of 1,2-dichloroethane (DCA) in groundwater, substrate injection may be required. However, substrate biodegradation causes groundwater acidification and sulfide production, which inhibits the bacteria responsible for DCA dechlorination and results in an odor problem. In the microcosm study, the effectiveness of the addition of ferrous sulfate (FS), desulfurization slag (DS), and nanoscale zero-valent iron (nZVI) on acidification and sulfide control was studied during reductive dechlorination of DCA, and the emulsified substrate (ES) was used as the substrate. Up to 94% of the sulfide was removed with FS and DS addition (0.25 wt%) (initial DCA concentration = 13.5 mg/L). FS and DS amendments resulted in the formation of a metal sulfide, which reduced the hydrogen sulfide concentration as well as the subsequent odor problem. Approximately 96% of the DCA was degraded under reductive dechlorination with nZVI or DS addition using ES as the substrate. In microcosms with nZVI or DS addition, the sulfide concentration was reduced to less than 15 μg/L. Acidification can be controlled via hydroxide ions production after nZVI oxidation and reaction of free CaO (released from DS) with water, which enhanced DCA dechlorination. The quantitative polymerase chain reaction results confirmed that the microcosms with nZVI added had the highest Dehalococcoides population (up to 2.5 × 10(8) gene copies/g soil) due to effective acidification control. The α-elimination mechanism was the main abiotic process, and reductive dechlorination dominated by Dehalococcides was the biotic mechanism that resulted in DCA removal. More than 22 bacterial species were detected, and dechlorinating bacteria existed in soils under alkaline and acidic conditions.
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Affiliation(s)
- S Y Wang
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - S C Chen
- Department of Life Sciences, National Central University, Chung-Li, Taiwan
| | - Y C Lin
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Y C Kuo
- Formosa Petrochemical Co., Kaohsiung, Taiwan
| | - J Y Chen
- Formosa Petrochemical Co., Kaohsiung, Taiwan
| | - C M Kao
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan
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14
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Kao CM, Liao HY, Chien CC, Tseng YK, Tang P, Lin CE, Chen SC. The change of microbial community from chlorinated solvent-contaminated groundwater after biostimulation using the metagenome analysis. JOURNAL OF HAZARDOUS MATERIALS 2016; 302:144-150. [PMID: 26474376 DOI: 10.1016/j.jhazmat.2015.09.047] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 09/19/2015] [Accepted: 09/22/2015] [Indexed: 06/05/2023]
Abstract
The compositions of bacterial community in one site contaminated with PCE/TCE after the slow polycolloid-releasing substrate (SPRS) (contained vegetable oil, cane molasses, and surfactants) addition were analyzed. Results show that SPRS caused a rapid enhancement of reductive dechlorination of TCE. The transformation of PCE/TCE into ethene was observed after 20 days of operation. To compare the change of bacterial communities before and after SPRS addition, 16S rRNA amplicon sequencing using the metagenome analysis was performed. Results demonstrated the detection of the increased amounts of Dehalogenimonas by 2.2-fold, Pseudomonas by 3.4-fold and Sulfuricurvum by 4-fold with the analysis of the ribosomal database project (RDP). Metagenomic DNA was extracted from PCE/TCE-contaminated groundwater after SPRS addition, and subjected to sequencing. Results obtained from metagenomic sequencing indicate that genes from Dehalococcoides mccartyi was ranked as the second abundant bacteria among all of the detected bacteria via the analysis of the lowest common ancestor (LCA). Abundance of these bacterial groups, as shown above suggests their role in TCE biodegradation. Functional analysis of the metagenome, with the specific reference to chloroalkane and chloroalkene degradation, revealed the presence of some genes responsible for TCE biodegradation. Overall, results of this study provided new insights for a better understanding of the potential of biostimulation on TCE-contaminated sites.
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Affiliation(s)
- Chih-Ming Kao
- Institute of Environmental Engineering, National Sun Yat-Sen University, no. 70, Lienhai Rd., Kaohsiung 80424, Taiwan
| | - Hung-Yu Liao
- Department of Life Sciences, National Central University, no. 300, Jhingda Rd., Jhongli City, Taoyuan 32001, Taiwan
| | - Chih-Ching Chien
- Graduate School of Biotechnology and Bioengineering, Yuan Ze University, no. 135, Yuantung Rd., Jhongli City, Taoyuan 32003, Taiwan
| | - Yi-Kuan Tseng
- Graduate Institute of Statistics, National Central University, no. 300, Jhingda Rd., Jhongli City, Taoyuan 32001, Taiwan
| | - Petrus Tang
- Department of Parasitology, Chang Gung University, no.259, Wenhua 1st Rd., Guishan Dis., Taoyuan City 33302, Taiwan
| | - Chih-En Lin
- Jeptro Technology Co., Ltd., no. 211, 23F-1, Jhongjheng 4th Rd., Kaohsiung 801, Taiwan
| | - Ssu-Ching Chen
- Department of Life Sciences, National Central University, no. 300, Jhingda Rd., Jhongli City, Taoyuan 32001, Taiwan.
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15
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Peng YP, Chen KF, Lin WH, Chang YC, Wu F. A novel three-stage treatment train for the remediation of trichloroethylene-contaminated groundwater. RSC Adv 2016. [DOI: 10.1039/c6ra04660f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The proposed treatment train removed TCE and its by-products effectively and there was no problem with the connection of chemical oxidation and anaerobic bioremediation in the novel treatment train technology.
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Affiliation(s)
- Yen-Ping Peng
- Department of Environmental Science and Engineering
- Tunghai University
- Taiwan
| | - Ku-Fan Chen
- Department of Civil Engineering
- National Chi Nan University
- Nantou 54561
- Taiwan
| | - Wei-Han Lin
- Department of Civil Engineering
- National Chi Nan University
- Nantou 54561
- Taiwan
| | - Yu-Chen Chang
- Department of Civil Engineering
- National Chi Nan University
- Nantou 54561
- Taiwan
| | - Fei Wu
- Department of Civil Engineering
- National Chi Nan University
- Nantou 54561
- Taiwan
- School of Environment and Energy
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16
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Sheu YT, Chen SC, Chien CC, Chen CC, Kao CM. Application of a long-lasting colloidal substrate with pH and hydrogen sulfide control capabilities to remediate TCE-contaminated groundwater. JOURNAL OF HAZARDOUS MATERIALS 2015; 284:222-232. [PMID: 25463237 DOI: 10.1016/j.jhazmat.2014.11.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2014] [Revised: 11/15/2014] [Accepted: 11/19/2014] [Indexed: 06/04/2023]
Abstract
A long-lasting emulsified colloidal substrate (LECS) was developed for continuous carbon and nanoscale zero-valent iron (nZVI) release to remediate trichloroethylene (TCE)-contaminated groundwater under reductive dechlorinating conditions. The developed LECS contained nZVI, vegetable oil, surfactants (Simple Green™ and lecithin), molasses, lactate, and minerals. An emulsification study was performed to evaluate the globule droplet size and stability of LECS. The results show that a stable oil-in-water emulsion with uniformly small droplets (0.7 μm) was produced, which could continuously release the primary substrates. The emulsified solution could serve as the dispensing agent, and nZVI particles (with diameter 100-200 nm) were distributed in the emulsion evenly without aggregation. Microcosm results showed that the LECS caused a rapid increase in the total organic carbon concentration (up to 488 mg/L), and reductive dechlorination of TCE was significantly enhanced. Up to 99% of TCE (with initial concentration of 7.4 mg/L) was removed after 130 days of operation. Acidification was prevented by the production of hydroxide ion by the oxidation of nZVI. The formation of iron sulfide reduced the odor from produced hydrogen sulfide. Microbial analyses reveal that dechlorinating bacteria existed in soils, which might contribute to TCE dechlorination.
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Affiliation(s)
- Y T Sheu
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - S C Chen
- Department of Life Sciences, National Central University, Chung-Li, Taiwan
| | - C C Chien
- Graduate School of Biotechnology and Bioengineering, Yuan Ze University, Chung-Li, Taiwan
| | - C C Chen
- Department of Biotechnology, National Kaohsiung Normal University, Kaohsiung, Taiwan
| | - C M Kao
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan.
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