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Reductive Dechlorination Sustained by Microbial Chain Elongation


Abstract Trichloroethene (TCE) is a ubiquitous soil and groundwater contaminant. The most common bioremediation approach for TCE relies on the process of reductive dechlorination by Dehalococcoides mccartyi. D. mccartyi use TCE, dichloroethene, and vinyl chloride as electron acceptors and hydrogen as an electron donor. At contaminated sites, reductive dechlorination is typically promoted by adding a fermentable substrate, which is broken down to short chain fatty acids, simple alcohols, and hydrogen. This study explored microbial chain elongation (MCE), instead of fermentation, to promote TCE reductive dechlorination. In MCE, microbes use simple substrates (e.g., acetate, ethanol) to build medium chain fatty acids and also produce hydrogen during th... (more)
Created Date 2019
Contributor Robles, Aide (Author) / Delgado, Anca G. (Advisor) / Torres, César I. (Committee member) / van Paassen, Leon (Committee member) / Arizona State University (Publisher)
Subject Environmental engineering / fatty acids / microbial chain elongation / reductive dechlorination / TCE
Type Masters Thesis
Extent 35 pages
Language English
Copyright
Note Masters Thesis Civil, Environmental and Sustainable Engineering 2019
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


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Description Dissertation/Thesis