Introduction. Chemical Commodities, Inc., located in a residential neighborhood, had soil and runaway groundwater containing toxic volatile organic compounds (VOCs).
Soil Vapor Extraction (SVE). Evangelista explored the feasibility of soil vapor extraction that used a vacuum to mobilize VOCs from the soil. The major challenge for SVE was the nearly impermeable, highly plastic, clayey soil. In this difficult soil, organic contaminants formed concentrated pockets of dense nonaqueous phase liquids (DNAPLs). Contaminated soil was placed in a pilot-scale SVE chamber from which 83% of the VOCs were “sucked” from the soil into a canister of activated carbon, despite the soil's low pneumatic permeability.
More Information. Extent of Contamination Determination, Building Decontamination Guidelines, and Bench-Scale Remedial Test for Chemical Commodities, Inc., Oletha, KS. R. Evangelista. Prepared for the U.S. Environmental Protection Agency.
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