Effect of hydrogen on the pathway and products of PCB dechlorination.
The pathway and products of reductive dechlorination of 2,3,4-chlorobiphenyl by Hudson River sediment microorganisms were altered by H2. Under H2/CO2, 2,3,4-CBP was dechlorinated to 2,4-,2,3-, and then 2-CBP. On the other hand, under N2, the same organisms yielded only 2,4-CBP as they did under N2/CO2. Dechlorination was not inhibited by a single or periodic addition of a methanogenic inhibitor, 2-bromoethanesulfonic acid under all gas atmospheres and thus, methane production was not necessary for dechlorination.
Sokol
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Wadsworth Center for Laboratories and Research, New York State Department of Health, Albany.
Bethoney
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Rhee
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D001673:Biodegradation, Environmental; D002713:Chlorine / Q000378:metabolism*; D006859:Hydrogen / Q000378:metabolism*; D011078:Polychlorinated Biphenyls / Q000378:metabolism*; D014871:Water Microbiology; D014874:Water Pollutants, Chemical / Q000378:metabolism*
D014874:Water Pollutants, Chemical; D002713:Chlorine; D006859:Hydrogen; D011078:Polychlorinated Biphenyls