Process for treatment of organic contaminants in solid or liquid

Details Process for treatment of organic contaminants in solid or liquid Process for treatment of organic contaminants in solid or liquid

1987-09-10

1988-12-27

Hart, Charles

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210638, 210748, 210760, 134 1, 134 10, 20415821, 2041582, 4221863, B01D 1100, C02F 132

Patent

active

047939311

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.

REFERENCES:
patent: 3977952 (1976-08-01), Knoevenagel et al.
patent: 4012321 (1977-03-01), Koubek
patent: 4437999 (1984-03-01), Mayne
patent: 4517063 (1985-05-01), Cviak

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