Soil Vapour Extraction (SVE) Services
Soil Vapor Extraction (SVE) is an in-situ remedial technology which is used to apply a vacuum to the vadose (unsaturated) soil zone which has been impacted by contaminants. The technology allows for the controlled flow of air to remove volatile compounds from the soil. Because the technology involves the continuous flow or air through the soil, it will often promote in-situ biological degradation of less-volatile compounds or residuals.Through the installation of either vertical or horizontal wells above the water table, a vacuum can be applied to the wells to pull the vapors out of the ground.
Depending on the project location, the exhaust air from the SVE may require treatment to eliminate possible harm to the public and/or the environment. Remediating a site using SVE may take several years, and is based on the following factors: size and depth of the contaminated area, type of soil and moisture conditions, chemical properties, and concentration of the contaminant. In instances where complete remediation is not possible, SVE can effectively mitigate the risk of volatile contaminant migration
Nichols Environmental has installed and maintained numerous SVE systems. The systems have been installed as a stand alone remediation tool, or they have been used in conjunction with other remedial technologies.
- Volatile Organic Compounds (VOCs)
- BTEX, F1 Components
- Volatile Hydrocarbon Fuels (i.e. gasoline, condensate)
- Chlorinated Compounds