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dc.contributor.authorPalekar, Leena Dhairyahsil
dc.date.accessioned2014-03-04T21:59:47Z
dc.date.available2014-03-04T21:59:47Z
dc.date.issued2002-08
dc.identifier.otherpalekar_leena_d_200208_ms
dc.identifier.urihttp://purl.galileo.usg.edu/uga_etd/palekar_leena_d_200208_ms
dc.identifier.urihttp://hdl.handle.net/10724/29280
dc.description.abstractThe LCP Superfund site in Brunswick, Georgia, was extensively contaminated with Aroclor 1268, a mixture of highly chlorinated polychlorinated biphenyl (PCB) congeners. This study investigates whether the indigenous anaerobic bacterial communities in PCB-contaminated salt-marsh sediment can dechlorinate weathered Aroclor 1268. Batch cultures of the contaminated estuarine sediment were separately primed for dechlorination with 2,6-dibromobiphenyl and 2,3,4,5,6-pentachlorobiphenyl under anaerobic, sulfate-reducing conditions and incubated at 28oC at different pH values (5.5-7.5) for one year. Dechlorination of primer 2,3,4,5,6-pentachlorobiphenyl occurred via two routes with the loss of (1) meta then para chlorine atoms and of (2) para, ortho, then meta chlorine atoms leading to the accumulation of mono-, di- and trichlorobiphenyls. Extensive dehalogenation of primer 2,6-dibromobiphenyl resulted in a significant accumulation of biphenyl and a small proportion of mono-bromobiphenyl. Neither of the two primers induced dechlorination of native Aroclor 1268 congeners.
dc.languageAnaerobic microbial dechlorination of polychlorinated biphenyls
dc.publisheruga
dc.rightspublic
dc.subjectpolychlorinated biphenyls
dc.subjectdechlorination
dc.subjectAroclor 1268
dc.subjectortho dechlorination
dc.titleAnaerobic microbial dechlorination of polychlorinated biphenyls
dc.typeThesis
dc.description.degreeMS
dc.description.departmentMicrobiology
dc.description.majorMicrobiology
dc.description.advisorJuergen Wiegel
dc.description.committeeJuergen Wiegel
dc.description.committeeKeith Maruya
dc.description.committeeWilliam Whitman


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