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Biological reductive dechlorination of tetrachloroethylene and trichloroethylene to ethylene under methanogenic conditions
Open accessAbstract
A biological process for remediation of groundwater contaminated with tetrachloroethylene (PCE) and trichloroethylene (TCE) can only be applied if the transformation products are environmentally acceptable. Studies with enrichment cultures of PCE- and TCE-degrading microorganisms provide evidence that, under methanogenic conditions, mixed cultures are able to completely dechlorinate PCE and TCE to ethylene, a product which is environmentally acceptable. Radiotracer studies with [14C]PCE indicated that [14C]ethylene was the terminal product; significant conversion to 14CO2 or 14CH4 was not observed. The rate-limiting step in the pathway appeared to be conversion of vinyl chloride to ethylene. To sustain reductive dechlorination of PCE and TCE, it was necessary to supply an electron donor; methanol was the most effective, although hydrogen, formate, acetate, and glucose also served. Studies with the inhibitor 2-bromoethanesulfonate suggested that methanogens played a key role in the observed biotransformations of PCE and TCE.
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Citations
Cited by
Effects of nano-scale zero-valent iron particles on a mixed culture dechlorinating trichloroethylene
Xiu, Z.-M., Jin, Z.-H., Li, T.-L., Mahendra, S., Lowry, G. V., & Alvarez, P. J. J. (2010) · Bioresource Technology · doi:10.1016/j.biortech.2009.09.057 · Cited by 254
Molecular microbiology methods for environmental diagnosis
Bouchez, T., Blieux, A. L., Dequiedt, S., Domaizon, I., Dufresne, A., Ferreira, S., Godon, J. J., Hellal, J., Joulian, C., Quaiser, A., et al. (2016) · Environmental Chemistry Letters · doi:10.1007/s10311-016-0581-3 · Cited by 121
Transformation of tetrachloroethylene to trichloroethylene by homoacetogenic bacteria
Terzenbach, D. P., & Blaut, M. (1994) · FEMS Microbiology Letters · doi:10.1111/j.1574-6968.1994.tb07224.x · Cited by 61
Ilieva, N. M., Wallen, Z. D., & De Miranda, B. R. (2022) · Toxicology and Applied Pharmacology · doi:10.1016/j.taap.2022.116176 · Cited by 31
Kanitkar, Y. H., Stedtfeld, R. D., Steffan, R. J., Hashsham, S. A., & Cupples, A. M. (2016) · Applied and Environmental Microbiology · doi:10.1128/aem.03660-15 · Cited by 19
Metadata
- Authors
- Freedman, D. L., & Gossett, J. M.
- Venue
- Applied and Environmental Microbiology
- Publisher
- American Society for Microbiology
- Published
- 1989-09
- Volume
- 55
- Issue
- 9
- Pages
- 2144-2151
- ISSN
- 0099-2240 (ISSN-L)
- 1098-5336
- OpenAlex
- W1506106735
- Cited by
- 676
- References
- 0
- FWCI
- 21.55
- Type
- journal article
- Language
- en
- Open access
- green
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- CoChat. (2026). Citation check: Biological reductive dechlorination of tetrachloroethylene and trichloroethylene to ethylene under methanogenic conditions. https://app.cochat.ai/papers/10.1128/aem.55.9.2144-2151.1989
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- Freedman, D. L., & Gossett, J. M. (1989). Biological reductive dechlorination of tetrachloroethylene and trichloroethylene to ethylene under methanogenic conditions. Applied and Environmental Microbiology. https://doi.org/10.1128/aem.55.9.2144-2151.1989
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
