Hydraulic and earth engineering – Soil remediation – In situ contaminant removal or stabilization
Patent
1996-07-23
1997-09-09
Taylor, Dennis L.
Hydraulic and earth engineering
Soil remediation
In situ contaminant removal or stabilization
405258, 588253, B09B 300, A62D 300
Patent
active
056649118
ABSTRACT:
A method for removing a contaminant from a treatment region of a contaminated region of a site in the earth having water therein and being contaminated with the contaminant includes heating the earth by establishing an electric field through the treatment region. The electric field gives rise to an electric conduction or displacement current through the treatment region. The electric current electrically heats at least a portion of the treatment region to a temperature below the boiling point of water to evaporate the water. A vacuum is drawn in a nether region of the site to collect water vapor evolved from the water and contaminant vapor evolved from the contaminant by movement of air from the surface of the earth, while the water vapor strips the contaminant from the earth. The contaminant vapor is disposed of in an innocuous manner.
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Bridges Jack E.
Dev Harsh
Sresty Guggilam C.
IIT Research Institute
Taylor Dennis L.
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