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
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
Environmental Sciences
Masaki Asai, Yuki Morita, Lingyu Meng, Hidetoshi Miyazaki, Naoko Yoshida
Summary: This study demonstrates that stainless alloy vessels may inhibit the dechlorination ability of Dehalococcoides strains, while titanium vessels can achieve complete dechlorination even after repeated use.
ENVIRONMENTAL MICROBIOLOGY REPORTS
(2023)
Article
Geochemistry & Geophysics
Edward J. O'Loughlin, David R. Burris
Summary: Chlorinated ethenes, commonly used as solvents and degreasers, have caused significant soil and groundwater contamination. This study found that green rust alone was ineffective in reducing chlorinated ethenes, but the presence of Ag(I) or Cu(II) improved the removal of these pollutants.
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
Ecology
Siyan Zhao, Chang Ding, Guofang Xu, Matthew J. Rogers, Rajaganesan Ramaswamy, Jianzhong He
Summary: Anaerobic PBDE debromination was observed in microcosms established from e-waste recycling sites. Bacterial genera Dehalococcoides, Dehalogenimonas, and Dehalobacter were implicated in PBDE debromination. Complete debromination of penta-BDE mixture was also observed in axenic cultures of Dehalococcoides mccartyi strains. Four reductive dehalogenases were identified as potential markers for PBDE debromination in microbial communities.
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
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
Engineering, Environmental
Jun Yan, Jingjing Wang, Manuel I. Villalobos Solis, Huijuan Jin, Karuna Chourey, Xiuying Li, Yi Yang, Yongchao Yin, Robert L. Hettich, Frank E. Loffler
Summary: The research demonstrates that Dehalococcoides mccartyi (Dhc) strains FL2 and 195 carrying tceA gene can grow with vinyl chloride (VC) as an electron acceptor when provided with sufficient vitamin B-12, leading to complete dechlorination of VC to ethene. Proteomic analysis shows expression of TceA in VC-grown strain FL2 cultures, and resequencing of tceA genes identified non-synonymous substitutions in both strains. The findings suggest that Dhc strains expressing TceA can respire VC, explaining ethene formation at chlorinated solvent sites where tceA dominates the RDase gene pool.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
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
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
Ecology
Guofang Xu, Xuejie Zhao, Siyan Zhao, Matthew J. Rogers, Jianzhong He
Summary: Organohalide pollutants are commonly found in coastal regions and pose threats to public health and ecosystems. This study investigates the effects of salinity on microbial dechlorination of PCE and PCBs in freshwater and marine sediments. The findings suggest that marine-derived microcosms exhibit higher halotolerance and a halotolerant dechlorinating culture was enriched. The study also reveals that salinity influences microbial community composition and dechlorination capabilities. These insights contribute to understanding the fate and bioremediation of organohalide pollutants in changing salinity environments.
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
Engineering, Environmental
Srivatsan Mohana Rangan, Shefali Rao, Aide Robles, Aatikah Mouti, Laurie LaPat-Polasko, Gregory Lowry, Rosa Krajmalnik-Brown, Anca G. Delgado
Summary: This study investigates the efficacy of coupling Fe0 with H2-utilizing organohalide-respiring bacteria (D. mccartyi) for the remediation of chlorinated solvents. By decoupling the application of Fe0 from organic substrates and D. mccartyi-containing cultures, the study demonstrates that reduced groundwater from Fe0 can support microbial reductive dechlorination and achieve high conversion rates of trichloroethene to ethene. The findings suggest that separating the application of Fe0 and biostimulation/bioaugmentation in space and time can enhance microbial trichloroethene reductive dechlorination, particularly in oxic conditions.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
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)