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Redox Controls on Chlorinated Ethene Degradation in Groundwater Systems

EPA Grant Number: U915434
Title: Redox Controls on Chlorinated Ethene Degradation in Groundwater Systems
Investigators: Moore, Angela M.
Institution: University of California - Davis
EPA Project Officer: Thompson, Delores
Project Period: January 1, 1998 through January 1, 2000
Project Amount: $79,388
RFA: STAR Graduate Fellowships (1998)
Research Category: Academic Fellowships , Fellowship - Civil/Environmental Engineering , Engineering and Environmental Chemistry

Description:

Objective:

The objective of this research project is to determine the rate and extent of chlorinated ethane degradation in response to changing redox conditions of shallow groundwater systems.

Approach:

Discerning the relationships between the geochemical environment and microbial processes is an important step in evaluating the capabilities and limitations of natural attenuation of volatile chlorinated compounds. This research project will involve the use of column microcosms with controlled redox conditions, carbon sources, electron acceptors, and nutrients to study the effects of changing redox conditions on the ability of a microbial community to degrade chlorinated ethenes. Kinetic parameters will be obtained from these studies for various redox conditions, and the lag time for initiation of reductive dechlorination upon return to reducing conditions will be determined.

Supplemental Keywords:

fellowship, volatile chlorinated compounds, redox controls, groundwater, nutrients, chlorinated ethenes, microbial community, dechlorination. , TREATMENT/CONTROL, Scientific Discipline, Waste, Biochemistry, Environmental Chemistry, Treatment Technologies, Bioremediation, remediation, biodegradation, microbial degradation, degradation, microbial reductive dechlorination, reductive dechlorination, chloroethenes, contaminated groundwater

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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.

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