Suppression of water pollution caused by solid wastes containing

Details Suppression of water pollution caused by solid wastes containing Suppression of water pollution caused by solid wastes containing

1975-06-17

1976-09-21

Stern, Edward

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group vib metal

423 1, 423571, 423607, C01G 3702, C01G 3700, C01B 1702

Patent

active

039819655

ABSTRACT:
A method of treating solid waste material containing minor amounts of water soluble chromium compounds with a reductant, particularly sulfide ions, to convert the soluble chromium to an insoluble state, and produce a solid waste from which substantially no chromium can be leached by water, as by exposure to rain.

REFERENCES:
patent: 2246396 (1941-06-01), Tarr et al.
patent: 2431075 (1947-11-01), Parsons
patent: 2560338 (1951-07-01), Frayne
patent: 2695215 (1954-11-01), Pollock
patent: 3937785 (1976-02-01), Gancy et al.

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