Liquid purification or separation – Processes – Chemical treatment
Patent
1992-08-31
1993-11-09
Spear, Frank
Liquid purification or separation
Processes
Chemical treatment
110226, 210768, 210180, F23G 512
Patent
active
052599620
ABSTRACT:
Solid materials, such as soils, containing contaminants are treated with hydroxyl radicals, in the gas phase. The hydroxyl radicals are created by hydrogen peroxide or ozone, preferably a combination of hydrogen peroxide, ozone and UV light. A decontamination unit for on-site use in the treatment of contaminated solid materials, such as contaminated soil is a totally enclosed closed-loop system.
REFERENCES:
patent: 4834836 (1984-05-01), Wemhoff
patent: 4861484 (1989-08-01), Lichtin et al.
patent: 4882021 (1989-12-01), Barnhart
patent: 4977839 (1990-12-01), Fochtman et al.
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