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DESIGN AND TESTING OF SECOND GENERATION BIOREMEDIATION TECHNOLOGIES FOR CHLORINATED SOLVENT CONTAMINATED SITES
Citation:
Sewell*, G W., S C. Mravik*, F P. Beck*, AND A L. Wood*. DESIGN AND TESTING OF SECOND GENERATION BIOREMEDIATION TECHNOLOGIES FOR CHLORINATED SOLVENT CONTAMINATED SITES. Presented at Annual Meeting of the Society for Industrial Microbiology, San Diego, CA, 7/23-27/2000.
Description:
The contamination of ground water at industrial and military facilities by chlorinated solvents remains a significant environmental challenge. In the 1990's several successful demonstrations of in situ biodegradation processes, targeted for chloroethenes, occurred. While these trials provided validation of the biotransformation processes, they met with limited success when evaluated in terms of site restoration and closure, and have identified implementation and design challenges. Currently the US-EPA s subsurface research program is field testing second generation reductive anaerobic biological treatment technologies which address some of these identified challenges,
as DNAPL/source zone treatment, in situ mixing and comprehensive site restoration, while continuing to improve cost efficacy performance. Design and performance data from two in
situ field tests will be presented as well as an evaluation of the potential and limitations of these 2nd generation technologies, and a discussion of future research needs in the area of chlorinated solvent bioremediation.