Reclamation of polluted wet soils

Details Reclamation of polluted wet soils Reclamation of polluted wet soils

1995-11-01

1996-12-17

Popovics, Robert

Liquid purification or separation

Processes

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

210770, 210908, 210909, 134 10, 134 251, 134 42, B01D 1104, B08B 308

Patent

active

055850022

ABSTRACT:
The present invention relates to a process for treatment of soils polluted by high-boiling organic substances, such as petroleum, polynuclear aromatics and chloro-organic substances, which process uses an extractant with high dissolving power for the pollutant, and which improves the soil-extractant contact thanks to the addition of a minimal amount of a hydrophilic co-solvent.

REFERENCES:
patent: 3254959 (1966-06-01), Fallgatter et al.
patent: 4606774 (1986-08-01), Morris
patent: 4662948 (1987-05-01), Weitzman
patent: 4801384 (1989-01-01), Steiner
patent: 4869825 (1989-09-01), Steiner
patent: 4975198 (1990-12-01), Steiner

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