Hydraulic and earth engineering – Soil remediation – In situ contaminant removal or stabilization
Patent
1998-05-05
2000-02-01
Lillis, Eileen Dunn
Hydraulic and earth engineering
Soil remediation
In situ contaminant removal or stabilization
405263, 588205, 588249, 210747, 210759, 210908, B09B 100, B01D 1706
Patent
active
060195487
ABSTRACT:
Volatile organic compounds are removed from contaminated soil by introducing one or both a water soluble peroxygen compound, such as a persulfate, and a permanganate into the soil, either in situ or ex situ, in amounts and under conditions wherein both the soil oxidant demand is satisfied and volatile organic compounds in the soil are oxidized. In a preferred embodiment, when both are used the peroxygen satisfies the soil oxidant demand and the permanganate oxidizes the volatile organic compounds. Sodium persulfate is the preferred persulfate and potassium permanganate is the preferred permanganate. The persulfate and the permanganate may be added to the soil sequentially, or may be mixed together and added as an aqueous solution.
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Chheda Pradeep Vishanji
Dobbs Gregory Melville
Hoag George Edward
Woody Bernard Allen
Lee Jong-Suk
Lillis Eileen Dunn
Revis Stephen E.
United Technologies Corporation
University of Connecticut
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