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RECORD NUMBER: 30 OF 46

OLS Field Name OLS Field Data
Main Title Performance evaluation of an in situ anaerobic biotreatment system for chlorinated solvents /
Author Sewell, Guy W. ; DeFlaun, M. F. ; Baek, N. H. ; Lutz, E. ; Weesner, B.
Other Authors
Author Title of a Work
DeFlaun, Mary F.
Baek, Nam H.
Lutz, Ed.
Weesner, Brent.
CORP Author National Risk Management Research Lab., Ada, OK. Subsurface Protection and Remediation Div. ;Envirogen, Inc., Lawrenceville, NJ. ;Du Pont de Nemours (E.I.) and Co., Wilmington, DE. ;ConsuTec, Inc., Tampa, FL. ;Pelorus Environment and Biotechnology Corp., Evergreen, CO.
Publisher U.S. Environmental Protection Agency, Robert S. Kerr Environmental Research Center, National Risk Management Research Laboratory, Subsurface Protection and Remediation Division,
Year Published 1998
Report Number EPA/600/A-98/041
Stock Number PB98-135809
Additional Subjects In situ processing ; Water pollution control ; Anaerobic conditions ; Biological treatment ; Ground water ; Aquifers ; Nutrients ; Flow rates ; Infiltration galleries ; Recirculation ; Water wells ; Biodegradation ; Microorganisms ; Remediation ; Performance evaluation ; Chlorinated solvents ; Volatile organic compounds ; Biotreatment ; Bioremediation
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB98-135809 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 8 pages : illustrations ; 28 cm
Abstract
A pilot scale demonstration of nutrient injection to stimulate in situ bioremediation of chlorinated solvents was performed at the Pinellas Science, Technology and Research (STAR) Center, formerly the U.S. Department of Energy Pinellas Plant in Largo, Florida. This project was implemented (January through June, 1997) for the Innovative Treatment Remediation Demonstration (ITRD) program to evaluate reductive anaerobic biological in situ treatment technologies (RABITT) as an innovative remedy. Based on laboratory studies and additional site characterizations, a vertical flow system with two horizontal wells and a series of infiltration galleries was constructed, allowing development of an effective ground water recirculation pattern to enable continuous nutrient (benzoate, lactate, and methanol) addition and enhance system performance. The performance of this system was closely monitored by tracking ground water flow rates, measuring hyraulic head changes in the aquifer, analyzing flow paths and biotransformation pathways. A three dimensional aquifer monitoring network was used to measure nutrient movement and associated contaminant degradation. Extracted ground water was also continuously monitoring for contaminants before recirculation. Significant dechlorination was observed in areas where nutrients were effectively delivered. Evaluation of the results suggests the process is applicable and cost effective with apropriate implementation, and site characterization.
Notes
"Book Chapter." "EPA/600/A-98/041." "PB98-135809." "Guy W. Sewell, project officer." Microfiche.