Microbial mineralization of ethene under sulfate-reducing conditions

Bioremediation Journal
By:  and 



Previous investigations demonstrated that respiratoly reductive dechlorination of vinyl chloride (VC) can be efficient even at H2 concentrations (≤2 nM) that are characteristic of SO4-reducing conditions. In the study reported here, microorganisms indigenous to a lake-bed sediment completely mineralized [1,2-14C] ethene to 1414CO2 when incubated under SO4-reducing conditions. Together, these observations argue for a novel mechanism for the net anaerobic oxidation of VC to CO2: reductive dechlorination of VC to ethene followed by anaerobic oxidation of ethene to CO2. Moreover, the results of this study suggest that reliance on ethene and/or ethane accumulation as a quantitative indicator of complete reductive dechlorination of chioroethene contaminants may not be warranted.

Publication type Article
Publication Subtype Journal Article
Title Microbial mineralization of ethene under sulfate-reducing conditions
Series title Bioremediation Journal
DOI 10.1080/10889860290777431
Volume 6
Issue 1
Year Published 2002
Language English
Contributing office(s) Toxic Substances Hydrology Program
Description 8 p.
First page 1
Last page 8
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