Process for treatment of organic contaminants in solid or liquid phase wastes
AssigneeSolarchem Research, Division of Brolor Investments, Ltd.
InventorsR.D. Samuel Stevens, Pauline M. Brown
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Abstract
Solid or liquid phase wastes containing organic contaminants which can be photodegraded are treated. The contaminants are extracted into a perfluorinated solvent which is inert to the photodegradation step. In the case of solid wastes, such as contaminated soils, sediments or sludges, the contaminant is preferably first extracted into a hydrophilic solvent, such as acetone or methanol, and/or water, and is then extracted into the perfluorinated solvent. Photo-oxidants such as ozone are preferably used in the photodegradation step.
Claims20
A process of treating a solid or liquid phase waste containing an organic contaminant which can be photodegraded, comprising:
- contacting the solid or liquid phase waste with a perfluorinated solvent to extract the contaminant into the perfluorinated solvent;
- and
- irradiating the perfluorinated hydrocarbon solvent containing the contaminant with U.V. light at any wavelength between about 180 and 400 nm to photodegrade the contaminant.
Dependencies are inferred from the claim text.