Characterization of four TCE-dechlorinating microbial enrichments grown with different cobalamin stress and methanogenic conditions.

ABSTRACT: To investigate the important supportive microorganisms responsible for trichloroethene (TCE) bioremediation under specific environmental conditions and their relationship with Dehalococcoides (Dhc), four stable and robust enrichment cultures were generated using contaminated groundwater. Enrichments were maintained under four different conditions exploring two parameters: high and low TCE amendments (resulting in inhibited and uninhibited methanogenic activity, respectively) and with and without vitamin B₁₂ amendment. Lactate was supplied as the electron donor. All enrichments were capable of reductively dechlorinating TCE to vinyl chloride and ethene. The dechlorination rate and ethene generation were higher, and the proportion of electrons used for dechlorination increased when methanoge

SUBMITTER: Men Y 

PROVIDER: S-EPMC6436544 | biostudies-literature | 2013 Jul

REPOSITORIES: biostudies-literature