Process for the removal of organic contaminants from soils and s

Details Process for the removal of organic contaminants from soils and s Process for the removal of organic contaminants from soils and s

1988-07-14

1990-12-04

Hruskoci, Peter

Liquid purification or separation

Processes

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

134 12, 134 251, 134 255, 134 42, 210669, 210772, 210908, 210909, 570211, B01D 1104

Patent

active

049751980

ABSTRACT:
A process for the decontamination of materials such as soil, sediments and sludges contaminated with organic contaminants such as PCB's. The process comprises the steps of separating the material into a solid fraction and a liquid fraction when liquid is present leaching the solid fraction with a leaching solvent to obtain contaminated leaching solvent and a mixture of decontaminated solids and leaching solvent and stripping the contaminant, from the contaminated leaching solvent with a stripping solvent to concentrate the contaminants. When liquid is present in the material, adsorbing residual contaminants from the liquid fraction are adsorbed onto decomtaminated solids to produce decontaminated liquids and contaminated solids.

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