Impacts of co-solvent flushing on microbial populations capable of degrading trichloroethylene.

ABSTRACT: With increased application of co-solvent flushing technologies for removal of nonaqueous phase liquids from groundwater aquifers, concern over the effects of the solvent on native microorganisms and their ability to degrade residual contaminant has also arisen. This study assessed the impact of ethanol flushing on the numbers and activity potentials of trichloroethylene (TCE)-degrading microbial populations present in aquifer soils taken immediately after and 2 years after ethanol flushing of a former dry cleaners site. Polymerase chain reaction analysis revealed soluble methane monooxygenase genes in methanotrophic enrichments, and 16S rRNA analysis identified Methylocystis parvus with 98% similarity, further indicating the presence of a type II methanotroph. Dissimilatory sulfite reducta

SUBMITTER: Ramakrishnan V 

PROVIDER: S-EPMC1253710 | biostudies-literature | 2005 Jan

REPOSITORIES: biostudies-literature