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Title: Application of Biodegradable Oils (VOS{sup TM}) for Treatment of Chlorinated Ethenes in the Vadose Zone - 12085

Abstract

Few active remediation alternatives are available to treat residual chlorinated volatile organic compounds (cVOCs) within the vadose zone. Soil vapor extraction (SVE) can be very effective at removing cVOCs in permeable soils; however, recoveries decline substantially in low permeability zones where mass transfer is diffusion-limited. Entrapped cVOCs in these zones represent a slow but continuous source of contamination to underlying groundwater. An ongoing field study was initiated at the Department of Energy's Savannah River Site (SRS) to evaluate an in situ biological treatment technology to address cVOC contamination in the vadose zone. Developed by Savannah River National Laboratory (SRNL), VOS{sup TM} is a thixotropic (shear thinning) formulation of biodegradable oil, water, nutrients, buffers, and de-chlorinating bacteria (Dehalococcoides sp.) that is designed to sequester and biodegrade slow-diffusing cVOCs from unsaturated, low permeable soils. Injection of 871 L (230 gal) of VOS{sup TM} resulted in a rapid and significant decrease in cVOC gas concentration, generation of cVOC daughter products, a decrease in oxygen concentration, and an increase in carbon dioxide and methane production. (authors)

Authors:
; ; ; ;  [1]; ; ;  [2]
  1. Savannah River National Laboratory, Aiken, SC (United States)
  2. EOS Remediation, LLC, Raleigh, NC (United States)
Publication Date:
Research Org.:
WM Symposia, 1628 E. Southern Avenue, Suite 9-332, Tempe, AZ 85282 (United States)
OSTI Identifier:
22293408
Report Number(s):
INIS-US-14-WM-12085
TRN: US14V1061114932
Resource Type:
Conference
Resource Relation:
Conference: WM2012: Waste Management 2012 conference on improving the future in waste management, Phoenix, AZ (United States), 26 Feb - 1 Mar 2012; Other Information: Country of input: France; 9 refs.
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 54 ENVIRONMENTAL SCIENCES; BACTERIA; CARBON DIOXIDE; CONTAMINATION; DAUGHTER PRODUCTS; DIFFUSION; ETHYLENE; GROUND WATER; MASS TRANSFER; METHANE; NUTRIENTS; OILS; REMEDIAL ACTION; SAVANNAH RIVER

Citation Formats

Riha, Brian D., Noonkester, Jay V., Looney, Brian B., Hyde, W. Keith, Walker, Richard W., Richardson, Stephen D., Elkins, Brad, and Beckwith, Walter. Application of Biodegradable Oils (VOS{sup TM}) for Treatment of Chlorinated Ethenes in the Vadose Zone - 12085. United States: N. p., 2012. Web.
Riha, Brian D., Noonkester, Jay V., Looney, Brian B., Hyde, W. Keith, Walker, Richard W., Richardson, Stephen D., Elkins, Brad, & Beckwith, Walter. Application of Biodegradable Oils (VOS{sup TM}) for Treatment of Chlorinated Ethenes in the Vadose Zone - 12085. United States.
Riha, Brian D., Noonkester, Jay V., Looney, Brian B., Hyde, W. Keith, Walker, Richard W., Richardson, Stephen D., Elkins, Brad, and Beckwith, Walter. Sun . "Application of Biodegradable Oils (VOS{sup TM}) for Treatment of Chlorinated Ethenes in the Vadose Zone - 12085". United States.
@article{osti_22293408,
title = {Application of Biodegradable Oils (VOS{sup TM}) for Treatment of Chlorinated Ethenes in the Vadose Zone - 12085},
author = {Riha, Brian D. and Noonkester, Jay V. and Looney, Brian B. and Hyde, W. Keith and Walker, Richard W. and Richardson, Stephen D. and Elkins, Brad and Beckwith, Walter},
abstractNote = {Few active remediation alternatives are available to treat residual chlorinated volatile organic compounds (cVOCs) within the vadose zone. Soil vapor extraction (SVE) can be very effective at removing cVOCs in permeable soils; however, recoveries decline substantially in low permeability zones where mass transfer is diffusion-limited. Entrapped cVOCs in these zones represent a slow but continuous source of contamination to underlying groundwater. An ongoing field study was initiated at the Department of Energy's Savannah River Site (SRS) to evaluate an in situ biological treatment technology to address cVOC contamination in the vadose zone. Developed by Savannah River National Laboratory (SRNL), VOS{sup TM} is a thixotropic (shear thinning) formulation of biodegradable oil, water, nutrients, buffers, and de-chlorinating bacteria (Dehalococcoides sp.) that is designed to sequester and biodegrade slow-diffusing cVOCs from unsaturated, low permeable soils. Injection of 871 L (230 gal) of VOS{sup TM} resulted in a rapid and significant decrease in cVOC gas concentration, generation of cVOC daughter products, a decrease in oxygen concentration, and an increase in carbon dioxide and methane production. (authors)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {7}
}

Conference:
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