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dc.contributor.advisor Hughes, Joseph B.
dc.creatorMcGuire, Travis Martin
dc.date.accessioned 2009-06-04T08:10:56Z
dc.date.available 2009-06-04T08:10:56Z
dc.date.issued 2002
dc.identifier.urihttps://hdl.handle.net/1911/17530
dc.description.abstract The influence of surfactants on a perchloroethene dechlorinating mixed culture was investigated in laboratory experiments. Seven surfactants, representing each of the surfactant classes, were screened for their effects on the rate and extent of perchloroethene dechlorination. Based on screening results, a nonionic surfactant, Tween 80, and an anionic surfactant, Steol CS-330, were selected for use in further studies. Dechlorination of perchloroethene to dichloroethene, vinyl chloride, and ethene occurred in all Tween 80 amended microcosms with a depressed rate of ethene production as the only adverse effect. Steol CS-330, however, inhibited dechlorination beyond dichloroethene at all surfactant concentrations exceeding 25 mg/L. Attempts to acclimate a culture to the surfactant were unsuccessful. Inhibition of vinyl chloride and ethene production was reversible upon dilution of the surfactant to 10 mg/L or below indicating that surfactant interactions with the enzyme system responsible for reductive dechlorination of dichloroethene was the most likely cause of inhibition.
dc.format.extent 149 p.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.subjectEnvironmental engineering
dc.title Effects of surfactants on a PCE dechlorinating mixed culture
dc.type.genre Thesis
dc.type.material Text
thesis.degree.department Civil and Environmental Engineering
thesis.degree.discipline Engineering
thesis.degree.grantor Rice University
thesis.degree.level Masters
thesis.degree.name Master of Science
dc.identifier.citation McGuire, Travis Martin. "Effects of surfactants on a PCE dechlorinating mixed culture." (2002) Master’s Thesis, Rice University. https://hdl.handle.net/1911/17530.


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