Methane As A Product Of Chloroethene Biodegradation Under Methanogenic Conditions
Paul M. Bradley and Francis H. Chapelle
ABSTRACT
Radiometric detection headspace analyses of microcosms containing bed sediments
from two geographically distinct sites indicated that 10-39% of the radiolabeled
carbon transformed during anaerobic biodegradation of [1,2-14C]
trichloroethene (TCE) or [1,2-14C] vinyl chloride (VC) under methanogenic
conditions was ultimately incorporated into 14CH4. The results demonstrate
that, in addition to ethene, ethane and CO2, CH4 can be a significant product
of chloroethene biodegradation in some methanogenic sediments.