Dechlorination of PCE and TCE to ethene using an anaerobic microbial consortium
- Michigan Biotechnology Inst., Lansing, MI (United States)
- EFX Systems, Inc., Lansing, MI (United States)
An anaerobic microbial consortium capable of dechlorinating chlorinated ethenes to ethylene has been developed as anaerobic granules in a laboratory-scale upflow anaerobic reactor (34 L) under ambient temperature conditions. Dechlorination of tetrachloroethene (PCE), trichloroethene (TCE), and dichloroethenes (DCEs) to ethene occurred under a wide temperature range tested. TCE, cis-1,2-DCE, and vinyl chloride (VC) are sequential intermediates of PCE dechlorination. The consortium also dechlorinated trans-1,2-DCE and 1,1-DCE to ethene. Various substrates for methane production can support dechlorination by this consortium. The feasibility of application of the microbial consortium as a microbial inoculum for treatment of groundwater and saturated soils were examined in bench-scale systems. Preliminary results indicate that the consortium can effectively dechlorinate PCE and TCE to ethene in saturated soils.
- OSTI ID:
- 474262
- Report Number(s):
- CONF-950483--; ISBN 1-57477-005-5
- Country of Publication:
- United States
- Language:
- English
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