Process for reducing aqueous effluents containing environmentall

Details Process for reducing aqueous effluents containing environmentall Process for reducing aqueous effluents containing environmentall

1978-03-30

1979-10-09

Castel, Benoit

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210 63Z, 210 71, 210 73R, 210 60, 210DIG31, 48210, B01D 1300

Patent

active

041705505

ABSTRACT:
Aqueous effluents from a process for gasifying carbonaceous materials may contain environmentally unacceptable compounds like hydrogen cyanide, ammonia, and compounds thereof, and dissolved salts and compounds of heavy metals and sulfur compounds. These compounds are removed from the aqueous effluents of the process for gasifying carbonaceous materials by recycling the aqueous effluents to the gasifier wherein the compounds are oxidized, reduced, or decomposed into environmentally innocuous compounds that can be released to the atmosphere or removed from the gasification process in the residue.

REFERENCES:
patent: 3575854 (1971-04-01), Richards
patent: 3902547 (1975-11-01), Garrison et al.
patent: 3966633 (1976-06-01), Friedman
patent: 3971637 (1976-07-01), Matthews
patent: 4000065 (1976-12-01), Ladha et al.
patent: 4105545 (1978-08-01), Muller et al.

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