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AssigneesUniversity of Connecticut, United Technologies Corporation
InventorsGeorge Edward Hoag, Pradeep V. Chheda, Bernard A. Woody, Gregory M. Dobbs
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Volatile organic compounds are removed from contaminated soil by introducing one or both of 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 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.
A method for oxidizing volatile organic compounds in soil comprising:
The method for oxidizing volatile organic compounds in an identified volume of soil, comprising:
A method for oxidizing subsurface volatile organic compounds in groundwater, comprising:
A method for the in situ oxidizing of volatile organic compounds in a volume of soil by introducing persulfate into the volume of soil, followed by heating the soil to form sulfate free radicals in sufficient quantities to oxidize the volatile organic compounds in the volume of soil.
A method for oxidizing volatile organic compounds in a volume of soil by introducing into the volume of soil an aqueous solution of permanganate and persulfate and heating the soil to form sulfate free radicals, wherein the volatile organic compounds in the soil are oxidized.
Dependencies are inferred from the claim text.