Article
Environmental Sciences
Kai-Hung Lo, Che-Wei Lu, Chih-Ching Chien, Yi-Tern Sheu, Wei-Han Lin, Ssu-Ching Chen, Chih-Ming Kao
Summary: This study evaluated the effectiveness of an immobilized Clostridium butyricum (ICB) column scheme in cleaning up chlorinated-ethene polluted groundwater containing cis-1,2-dichloroethene (cis-DCE). The results showed that the introduction of ICB and SPRS significantly reduced the concentration of cis-DCE and enhanced the dechlorination process. Furthermore, the introduction of ICB and SPRS had a significant impact on the microbial communities.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Zhiming Wu, Xin Yu, Guiping Liu, Wei Li, Lianghua Lu, Pengfa Li, Xihui Xu, Jiandong Jiang, Baozhan Wang, Wenjing Qiao
Summary: This study obtained an anaerobic microbiota from 1,2-DCA contaminated groundwater that could convert 1,2-DCA into non-toxic ethylene sustainably. The relative abundance of Dehalo-coccoides species increased during the dechlorination of 1,2-DCA. The study highlights the importance of microbial interactions within functional microbiota and provides a promising microbial resource for in situ bioremediation in sites contaminated with 1,2-DCA.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Zheng-Tao Li, Si-Ying Yang, He -Ping Zhao
Summary: Inorganic arsenic and organochlorines often coexist in anoxic groundwater environments, posing challenges for bioremediation. This study investigated the dechlorination performance of a microbial consortium under different concentrations of arsenate or arsenite and found that the impact of arsenic on dechlorination differed between the two scenarios. The study also revealed that the vinyl chloride-to-ethene step was more susceptible to arsenic exposure and fermentative bacteria showed high potential for arsenic resistance. The findings provide insights for modifying bioremediation strategies at co-contaminated sites.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Guofang Xu, Siyan Zhao, Chen Chen, Ning Zhang, Jianzhong He
Summary: Contamination of groundwater by multiple chlorinated solvents is a common issue that poses a significant challenge for effective remediation. This study reveals that different cocontaminants have varying inhibitory effects on the dechlorination process, with chloroform showing the strongest inhibition. The inhibitory effects of cocontaminants can be mitigated by introducing specific bacterial strains, resulting in the concurrent detoxification of multiple chlorinated solvents. Furthermore, the presence of cocontaminants leads to significant changes in the composition, structure, and assembly of the dechlorinating microbiome.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Environmental Sciences
Sen Yang, Junhong Wu, Heli Wang, Qian Yang, Huanheng Zhang, Lihua Yang, Dan Li, Yirong Deng, Yin Zhong, Ping'an Peng
Summary: This study investigated the microbial-mediated dechlorination of chlorinated organophosphate esters (Cl-OPEs) at end-of-life vehicles dismantling sites. The dechlorination products, pathways, and mechanisms of tris(2-chloroethyl) phosphate (TCEP) were analyzed, and the important roles of Dehalococcoides and sulfate-reducing bacteria in the dechlorination process were identified.
ENVIRONMENTAL POLLUTION
(2023)
Article
Engineering, Environmental
Xifen Zhu, Shaofu Deng, Yun Fang, Sen Yang, Yin Zhong, Dan Li, Heli Wang, Junhong Wu, Ping'an Peng
Summary: This study investigates the transformation of chlorinated organophosphate esters (Cl-OPEs) under anoxic conditions using Dehalococcoides-containing enrichment cultures. The results show that tris(2-chloroethyl) phosphate (TCEP) and tris(1-chloro-2-propyl) phosphate (TCPP) were transformed within 10 days. The identified transformation products and deuteration experiments suggest a radical mechanism for the transformation of TCEP and TCPP. Dehalococcoides is found to be the predominant contributor to the transformation, and active reductive dehalogenase (rdh) genes are identified in the genomes of Dehalococcoides. Overall, this study provides insights into the role of Dehalococcoides in the transformation of Cl-OPEs.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Aide Robles, Theodora L. Yellowman, Sayalee Joshi, Srivatsan Mohana Rangan, Anca G. Delgado
Summary: This study explores a new strategy of microbial chain elongation as a process for producing hydrogen gas, achieving efficient conversion of trichloroethene to ethene in soil microcosms, and providing critical fundamental knowledge for chlorinated solvent bioremediation based on microbial chain elongation.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Tielong Li, Jiaxin Wen, Bingjie Li, Shihu Ding, Wei Wang
Summary: The study found that tourmaline can accelerate the biological dechlorination of TCE by promoting bacterial growth and metabolism, leading to increased ethene production and significant impact on RDase gene expression.
Article
Engineering, Environmental
Rifeng Wu, Rui Shen, Zhiwei Liang, Shengzhi Zheng, Yong Yang, Qihong Lu, Lorenz Adrian, Shanquan Wang
Summary: Strategies based on ecological principles can enhance the colonization of OHRB in niches, thereby improving the bioremediation efficiency of chloroethene-contaminated sites.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Environmental Sciences
Diana Puigserver, Jofre Herrero, Xenia Nogueras, Amparo Cortes, Beth L. Parker, E. Playa, Jose M. Carmona
Summary: Chlorinated solvents are toxic substances that are difficult to degrade in aquifers and aquitards. The study reveals that biogeochemical processes in the matrix can facilitate the degradation and dechlorination of chlorinated solvents.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Microbiology
Marta M. Rossi, Bruna Matturro, Neda Amanat, Simona Rossetti, Marco Petrangeli Papini
Summary: By combining biological and chemical/physical treatments, the remediation strategy for chlorinated solvents can be improved. A coupled adsorption and biodegradation process using a biofilm-biochar reactor demonstrated that biochar effectively adsorbs trichloroethylene (TCE) and slows down the release of its intermediates. This study suggests the feasibility of using biochar to support the reductive dechlorination process, opening up new possibilities for field-scale applications.
Article
Environmental Sciences
Xinkai Li, Qiang Xu, Youjun Cheng, Chunlei Chen, Chaofeng Shen, Chunfang Zhang, Daoqiong Zheng, Dongdong Zhang
Summary: This study investigated the effect of different types of microplastics on the degradation of commercial polychlorinated biphenyls (PCBs) by microbes and found that microplastic exposure inhibited microbial PCB degradation. The microbial community compositions were not significantly different between microplastic biofilms and suspension culture, but the presence of microplastics attenuated microbial synergistic interactions. These findings are important for understanding microbial degradation behavior and guiding in situ PCB bioremediation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Jingjing Wang, Xiuying Li, Jun Yan, Yi Yang
Summary: The study found that heavy metal ions have inhibitory effects on microbial reductive dechlorination of organohalides, with Zn2+ showing the strongest inhibitory effect. The structure of microbial communities is influenced by the concentration and type of contaminants, and certain organohalide-respiring bacteria exhibit tolerance to heavy metal ions.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Biotechnology & Applied Microbiology
Marta M. Rossi, Sara Alfano, Neda Amanat, Fabiano Andreini, Laura Lorini, Andrea Martinelli, Marco Petrangeli Papini
Summary: In this study, polyhydroxy butyrate (PHB) and biochar from pine wood (PWB) were used in a mini-pilot scale biological reactor for trichloroethylene (TCE) removal. PHB acted as an electron donor source, while PWB served as a support and adsorption material for Dehalococcoides. The results showed that the coupled adsorption and biodegradation process effectively removed chlorinated compounds.
BIOENGINEERING-BASEL
(2022)
Article
Environmental Sciences
Daniele Ghezzi, Maria Filippini, Martina Cappelletti, Andrea Firrincieli, Davide Zannoni, Alessandro Gargini, Stefano Fedi
Summary: The study conducted on highly contaminated chlorinated aliphatic organics in the subsoil of Ferrara, Italy revealed the importance of microbial degradation as a key mechanism for the dechlorination process. Through analysis of microbial communities using 16S rRNA gene sequencing and metabolic gene analysis, a complex network of metabolic interactions was hypothesized to support effective reductive dechlorination. This study provides insights into the diversity of microbial communities and potential dechlorinators in contaminated aquifer systems, shedding light on the microbial processes involved in bioremediation efforts.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Engineering, Environmental
Christina Lihl, Lisa M. Douglas, Steffi Franke, Alfredo Perez-de-Mora, Armin H. Meyer, Martina Daubmeier, Elizabeth A. Edwards, Ivonne Nijenhuis, Barbara Sherwood Lollar, Martin Elsner
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2019)
Article
Chemistry, Analytical
Tetyana Gilevska, Ann Sullivan Ojeda, Julian Renpenning, Steffen Kuemmel, Matthias Gehre, Ivonne Nijenhuis, Barbara Sherwood Lollar
ANALYTICAL CHEMISTRY
(2020)
Article
Engineering, Environmental
Shujuan Lian, Marcell Nikolausz, Ivonne Nijenhuis, Ulisses Nunes da Rocha, Bin Liu, Felipe Borim Correa, Joao Pedro Saraiva, Hans Hermann Richnow
JOURNAL OF HAZARDOUS MATERIALS
(2020)
Article
Engineering, Environmental
Yaqing Liu, Jia Liu, Julian Renpenning, Ivonne Nijenhuis, Hans-Hermann Richnow
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2020)
Article
Microbiology
Peng Peng, Yue Lu, Tom N. P. Bosma, Ivonne Nijenhuis, Bart Nijsse, Sudarshan A. Shetty, Alexander Ruecker, Alexander Umanets, Javier Ramiro-Garcia, Andreas Kappler, Detmer Sipkema, Hauke Smidt, Siavash Atashgahi
Article
Limnology
Marco Gunthel, Isabell Klawonn, Jason Woodhouse, Mina Bizic, Danny Ionescu, Lars Ganzert, Steffen Kuemmel, Ivonne Nijenhuis, Luca Zoccarato, Hans-Peter Grossart, Kam W. Tang
LIMNOLOGY AND OCEANOGRAPHY
(2020)
Article
Microbiology
Steffi Franke, Katja Seidel, Lorenz Adrian, Ivonne Nijenhuis
FRONTIERS IN MICROBIOLOGY
(2020)
Article
Engineering, Environmental
Yaqing Liu, Steffen Kuemmel, Jun Yao, Ivonne Nijenhuis, Hans-Hermann Richnow
Article
Environmental Sciences
Jofre Herrero, Diana Puigserver, Ivonne Nijenhuis, Kevin Kuntze, Beth L. Parker, Jose M. Carmona
Summary: Ecotones in aquifers serve a significant role in regulating matter and energy flux, characterized by steep gradients and high biological diversity. Geological heterogeneities in ecotones play a crucial role in microbial diversity and dehalogenation reactions of chloroethenes.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Ecology
Stefan Kruse, Dominique Turkowsky, Jan Birkigt, Bruna Matturro, Steffi Franke, Nico Jehmlich, Martin von Bergen, Martin Westermann, Simona Rossetti, Ivonne Nijenhuis, Lorenz Adrian, Gabriele Diekert, Tobias Goris
Summary: Microbial communities with dehalogenating bacteria play a key role in bioremediation of halocarbon-contaminated areas. Co-culturing experiments revealed that the formation of bacterial aggregates can enhance the rate of halogenated compound dehalogenation through molecular interactions among dehalogenating bacteria.
Correction
Limnology
Marco Gunthel, Isabell Klawonn, Jason Woodhouse, Mina Bizic, Danny Ionescu, Lars Ganzert, Steffen Kuemmel, Ivonne Nijenhuis, Luca Zoccarato, Hans-Peter Grossart, Kam W. Tang
LIMNOLOGY AND OCEANOGRAPHY
(2021)
Article
Environmental Sciences
Jofre Herrero, Diana Puigserver, Ivonne Nijenhuis, Kevin Kuntze, Jose M. Carmona
Summary: This study investigated the distribution of microbial communities in two boreholes in the source area of perchloroethene through T-RFLP and clone library analysis. The most abundant phylums found in the sediment were Proteobacteria, Actinobacteria, and Firmicutes. The study demonstrated that environmental factors like fine granulometry, oxygen tolerance, terminal electron-acceptor processes, and toxicity controlled the microbial structure in response to chlorinated solvent contamination.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Review
Microbiology
Mohammad Sufian Bin Hudari, Hans Richnow, Carsten Vogt, Ivonne Nijenhuis
Summary: This article summarizes the current knowledge on reductive dehalogenation activities of chlorinated ethenes at different temperatures, including the activity and dehalogenation extent in laboratory isolates and enrichment cultures at different temperatures. It also discusses the indirect effects on biotransformation and the impact of anthropogenic activities related to thermal heat management on groundwater temperature.
FEMS MICROBIOLOGY ECOLOGY
(2022)
Article
Engineering, Environmental
Yaqing Liu, Juan Fu, Langping Wu, Steffen Kuemmel, Ivonne Nijenhuis, Hans H. Richnow
Summary: In this study, multi-element compound-specific stable isotope analysis was used to evaluate the α-HCH and γ-HCH transformations catalyzed by LinA1 and LinA2 enzymes. The results showed slight differences in the isotopic fractionation patterns of different enantiomers, but both enzymes exhibited similar reaction mechanisms during γ-HCH transformation.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Isabel Horna-Gray, Nora A. Lopez, Ivonne Nijenhuis, Youngbeom Ahn, Hans H. Richnow, Max M. Haggblom
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
(2020)
