Vapor stripping of VOC-contaminated clay soils
Conference
·
OSTI ID:10149094
- Oak Ridge National Lab., TN (United States)
- Michigan Technological Univ., Houghton, MI (United States)
Vapor stripping is a treatment process in which volatile organic contaminants (VOCs) are removed from contaminated soil by high-pressure aeration. This technology is potentially applicable to low-permeability soils when coupled with in situ soil mixing. A laboratory evaluation of in situ vapor stripping was conducted for TCE-contaminated deposits ({gt}80% silt and clay, and hydraulic conductivity {le}10{sup -6}cm/sec) underlying a land disposal site located at a DOE facility. Intact soil cores taken from contaminated areas and re-packed soil cores spiked with TCE were treated in an apparatus that simulated the vapor stripping process. Removal efficiencies calculated from pre- and posttreatment samples were predominately greater than 85%. In some of the spiked cores, soil samples were taken during treatment to establish removal efficiency as a function of treatment time.
- Research Organization:
- Oak Ridge National Lab., TN (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 10149094
- Report Number(s):
- CONF-930769--1; ON: DE93011847
- Country of Publication:
- United States
- Language:
- English
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