Process for removing contaminants from soils

Details Process for removing contaminants from soils Process for removing contaminants from soils

1984-07-30

1986-08-19

Castel, Benoit

Cleaning and liquid contact with solids

Processes

Including regeneration, purification, recovery or separation...

134 12, 134 255, 210769, 210774, 210805, 210806, B08B 310

Patent

active

046067744

ABSTRACT:
There is described a process in which a contaminated soil is freed of its contaminants and the solvent used to free and wash the contaminated soil is collected and reused and/or it is combusted and removed from the system in a form which will not contaminate the ambient atmosphere. All portions of this equipment are substantially gas tight and liquid tight and therefore eliminate or markedly reduce any further contamination of the ambient atmosphere with the contaminants found in the soil.

REFERENCES:
patent: 2709674 (1955-05-01), Bergstrom
patent: 2973312 (1961-02-01), Logan
patent: 3017342 (1962-01-01), Bulat et al.
patent: 3072567 (1963-01-01), Evans et al.
patent: 3610260 (1971-10-01), Kearney
patent: 4040866 (1977-08-01), Mondshine
patent: 4091826 (1978-05-01), Bahrke
patent: 4139462 (1979-02-01), Sample
patent: 4406796 (1983-09-01), Duval
patent: 4424081 (1984-01-01), Giguere

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