In-situ bioremediation via horizontal wells

Conference · Fri Dec 31 04:00:00 EST 1993

OSTI ID:10136685

Hazen, T C ^[1]; Looney, B B; Enzien, M; Franck, M M; Fliermans, C B; Eddy, C A ^[2]

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1. Westinghouse Savannah River Co., Aiken, SC (United States)
2. Westinghouse Savannah River Technology Center, Aiken, SC (United States)

This project is designed to demonstrate in situ bioremediation of groundwater and sediment contaminated with chlorinated solvents. Indigenous microorganisms were stimulated to degrade TCE, PCE and their daughter products in situ by addition of nutrients to the contaminated zone. In situ biodegradation is a highly attractive technology for remediation because contaminants are destroyed, not simply moved to another location or immobilized, thus decreasing costs, risks, and time, while increasing efficiency and public and regulatory acceptability. Bioremediation has been found to be among the least costly technologies in applications where it will work (Radian 1989). Subsurface soils and water adjacent to an abandoned process sewer line at the SRS have been found to have elevated levels of TCE (Marine and Bledsoe 1984). This area of subsurface and groundwater contamination is the focus of a current integrated demonstration of new remediation technologies utilizing horizontal wells. Bioremediation has the potential to enhance the performance of in situ air stripping as well as offering stand-alone remediation of this and other contaminated sites (Looney et al. 1991). Horizontal wells could also be used to enhance the recovery of groundwater contaminants for bioreactor conversions from deep or inaccessible areas (e.g., under buildings) and to enhance the distribution of nutrient or microbe additions in an in situ bioremediation.

• Research Organization: Westinghouse Savannah River Co., Aiken, SC (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC09-89SR18035
• OSTI ID: 10136685
• Report Number(s): WSRC-MS--93-362; CONF-9309146--8; ON: DE94009055
• Country of Publication: United States
• Language: English

Related Subjects

054000
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
54 ENVIRONMENTAL SCIENCES
540220
550700
59 BASIC BIOLOGICAL SCIENCES
BIODEGRADATION
CHEMICALS MONITORING AND TRANSPORT
CHLORINATED ALIPHATIC HYDROCARBONS
DIAGRAMS
GROUND WATER
HAZARDOUS MATERIALS
HEALTH AND SAFETY
METABOLISM
METHANE
METHANOTROPHIC BACTERIA
MICROBIOLOGY
REMEDIAL ACTION
SAVANNAH RIVER PLANT
SOILS
VOLATILE MATTER
WELLS