Full scale field test of the in situ air stripping process at the Savannah River integrated demonstration test site

Technical Report · Sat Jun 29 00:00:00 EDT 1991

DOI:https://doi.org/10.2172/5624666· OSTI ID:5624666

Looney, B B; Hazen, T C; Kaback, D S; Eddy, C A

Under sponsorship from the US Department of Energy, technical personnel from the Savannah River Laboratory (SRL) and other DOE laboratories, universities and private industry have completed a full scale demonstration of environmental remediation using horizontal wells. This demonstration was performed as Phase I of an Integrated Demonstration Project designed to evaluate innovative remediation technologies for environmental restoration of sites contaminated with organic contaminants. The demonstration utilized two directionally drilled horizontal wells to deliver gases and extract contaminants from the subsurface. The resulting in situ air stripping process was designed to remediate soils and sediments above and below the water table as well as groundwater contaminated with volatile organic contaminants. The 139 day long test successfully removed volatile chlorinated solvents from the subsurface using the two horizontal wells. One well, approximately 300 ft (90m) long and 165 ft (50m) deep drilled below a contaminant plume in the groundwater, was used to inject air and strip the contaminants from the groundwater. A second horizontal well, approximately 175 ft (53m) long and 75 ft (23m) deep in the vadose zone, was used to extract residual contamination in the vadose zone along with the material purged from the groundwater. Pretest and posttest characterization data and monitoring data during the demonstration were collected to aid in interpretation of the test and to provide the information needed for future environmental restoration that employ directionally drilled wells as extraction or delivery systems. Contaminant concentration data and microbiological monitoring data are summarized in this report; the characterization data and geophysical monitoring data are documented in a series of related project reports.

• Research Organization: Savannah River Site (SRS), Aiken, SC (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC09-89SR18035
• OSTI ID: 5624666
• Report Number(s): WSRC-RD-91-22; ON: DE92009749
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
29 ENERGY PLANNING
POLICY AND ECONOMY
GROUND WATER
WATER QUALITY
REMEDIAL ACTION
DEMONSTRATION PROGRAMS
COMPILED DATA
CONTAMINATION
ENVIRONMENTAL QUALITY
MONITORING
ORGANIC CHLORINE COMPOUNDS
SAVANNAH RIVER PLANT
SITE CHARACTERIZATION
VOLATILE MATTER
WATER POLLUTION
WATER POLLUTION MONITORS
WELL DRILLING
WELL LOGGING
WELLS
DATA
DRILLING
HYDROGEN COMPOUNDS
INFORMATION
MATTER
MEASURING INSTRUMENTS
MONITORS
NATIONAL ORGANIZATIONS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN COMPOUNDS
POLLUTION
US AEC
US DOE
US ERDA
US ORGANIZATIONS
WATER
540250* - Environment
Terrestrial- Site Resource & Use Studies- (1990-)
290500 - Energy Planning & Policy- Research
Development
Demonstration
& Commercialization
540220 - Environment
Terrestrial- Chemicals Monitoring & Transport- (1990-)