Main Location
Progressive Engineering & Construction, Inc.
3912 W. Humphrey Street
Tampa, FL 33614
(813) 930-0669
Soil Vapor Extraction/Bioventing
In situ soil vapor extraction (SVE), or bioventing, can be one of the most cost-effective remediation processes for soils contaminated with gasoline, solvents, or other relatively volatile and/or aerobically biodegradable compounds. SVE and bioventing induce air flow in the vadose zone to promote volatilization and biological degradation of contaminants. SVE is an attractive treatment option because the soil is treated in place, sophisticated equipment is not required, and the cost is typically lower than other remedial options. The critical parameter is adequate air flow so that desired partitioning can occur. A typical SVE system couples vapor extraction wells with blowers or vacuum pumps to remove vapors from the vadose zone, thus reducing residual levels of soil contaminants. Contaminants volatilized from the soil matrix are captured by air flow to extraction wells or trenches. An above-ground treatment system then adsorbs or incinerates the vapors. In some cases, vapors can be emitted to the atmosphere through stacks without treatment. next