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Trade-offs in Utilizing of Zero-Valent Iron for Synergistic Biotic and Abiotic Reduction of Trichloroethene and Perchlorate in Soil and Groundwater

Abstract The advantages and challenges of combining zero-valent iron (ZVI) and microbial reduction of trichloroethene (TCE) and perchlorate (ClO4-) in contaminated soil and groundwater are not well understood. The objective of this work was to identify the benefits and limitations of simultaneous application of ZVI and bioaugmentation for detoxification of TCE and ClO4- using conditions relevant to a specific contaminated site. We studied conditions representing a ZVI-injection zone and a downstream zone influenced Fe (II) produced, for simultaneous ZVI and microbial reductive dechlorination applications using bench scale semi-batch microcosm experiments. 16.5 g L-1 ZVI effectively reduced TCE to ethene and ethane but ClO4- was barely reduced. Micro... (more)
Created Date 2017
Contributor Mohana Rangan, Srivatsan (Author) / Krajmalnik-Brown, Rosa (Advisor) / Delgado, Anca G (Committee member) / Lowry, Gregory V (Committee member) / Arizona State University (Publisher)
Subject Environmental engineering / Biogeochemistry / Nanotechnology / Bioremediation / Groundwater / Perchlorate / Soil / Trichloroethylene / Zero Valent Iron
Type Masters Thesis
Extent 29 pages
Language English
Reuse Permissions All Rights Reserved
Note Masters Thesis Civil, Environmental and Sustainable Engineering 2017
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS

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Description Dissertation/Thesis