In situ TCE degradation mediated by complex dehalorespiring communities during biostimulation processes.

ABSTRACT: The bioremediation of chloroethene contaminants in groundwater polluted systems is still a serious environmental challenge. Many previous studies have shown that cooperation of several dechlorinators is crucial for complete dechlorination of trichloroethene to ethene. In the present study, we used an explorative functional DNA microarray (DechloArray) to examine the composition of specific functional genes in groundwater samples in which chloroethene bioremediation was enhanced by delivery of hydrogen-releasing compounds. Our results demonstrate for the first time that complete biodegradation occurs through spatial and temporal variations of a wide diversity of dehalorespiring populations involving both Sulfurospirillum, Dehalobacter, Desulfitobacterium, Geobacter and Dehalococcoides gener

SUBMITTER: Dugat-Bony E 

PROVIDER: S-EPMC3815876 | biostudies-literature | 2012 Sep

REPOSITORIES: biostudies-literature