[AGE30-P03] Biodegradation of Chlorinated Ethenes
Keywords:Biodegradation, Chlorinated ethenes, Biodegradation pathway, Degradation rate
VC is more toxic and is known to be a human carcinogen. It has recently been specified as a new substance for regulation by the Soil Contamination Countermeasures Act in Japan.
To obtain the information that facilitates better understanding of the origin and prediction of the fate of VC at contaminated sites, this presentation summarizes the biodegradation mechanisms, potential biodegradation pathways, degrading microorganisms, and biological degradation rates under natural and enhanced conditions based on extensive literature survey. In addition, theoretical solutions for analyzing up to four steps consecutive reactions are derived. The solutions can be used to simulate complete anaerobic biodegradation of PCE to non-toxic ethene (ETH) through TCE, cis-DCE and VC.