Laboratory investigations into biologically enhanced removal of PCE from NAPL source zones

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dc.contributor.advisorHughes, Joseph B.
dc.creatorCope, Nathan
dc.date.accessioned2009-06-04T08:21:53Z
dc.date.available2009-06-04T08:21:53Z
dc.date.issued2001
dc.description.abstractThe influence of dechlorinating microorganisms on PCE and its reduction products in a residual non-aqueous phase liquid (NAPL) source zone was investigated. Experiments were conducted in upflow anaerobic columns containing glass beads contaminated with a residual NAPL consisting of tridecane and PCE. Columns were inoculated with a mixed PCE-dechlorinating culture, and fed a nutrient medium that included electron donor (pyruvate and/or lactate) at a wide range of concentrations. The systems that were monitored for effluent organic acids (pyruvate-fed) demonstrated evidence of active fermentation. Comparisons between biotic and abiotic columns demonstrated that dechlorination resulted in an increase in total PCE removal, up to a factor of 16 over dissolution. PCE was sequentially reduced as far as vinyl chloride. Total chlorinated ethenes removal was enhanced up to 6.5 times over dissolution removal. The system fed the highest electron donor level, interestingly, lost dechlorinating activity early in the experiment.
dc.format.extent146 p.en_US
dc.format.mimetypeapplication/pdf
dc.identifier.callnoTHESIS ENV.SCI. 2001 COPE
dc.identifier.citationCope, Nathan. "Laboratory investigations into biologically enhanced removal of PCE from NAPL source zones." (2001) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/17411">https://hdl.handle.net/1911/17411</a>.
dc.identifier.urihttps://hdl.handle.net/1911/17411
dc.language.isoeng
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.subjectEnvironmental engineering
dc.titleLaboratory investigations into biologically enhanced removal of PCE from NAPL source zones
dc.typeThesis
dc.type.materialText
thesis.degree.departmentEnvironmental Science
thesis.degree.disciplineEngineering
thesis.degree.grantorRice University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science
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