NALT

Preferred term

soil vapor extraction

Topic

Soil vapor extraction is an in situ remedial technology that reduces concentrations of volatile constituents in petroleum products adsorbed to soils in the unsaturated (vadose) zone. A vacuum is applied through wells near the source of contamination in the soil. Volatile constituents of the contaminant mass "evaporate" and the vapors are drawn toward extraction wells. Extracted vapor is then treated (commonly with carbon adsorption) before being released to the atmosphere.

environmental technology

remediation

soil vacuum extraction
soil vapour extraction
soil venting

Field 001 in MARC Authority Format

34370

Spanish

extracción de vapores del suelo

URI

https://lod.nal.usda.gov/nalt/37469

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Created 1/19/06, last modified 1/18/13