Effluent treatment

Details Effluent treatment Effluent treatment

1986-07-16

1988-03-22

Doll, John

Liquid purification or separation

Processes

Chemical treatment

210756, 210759, 210763, 423579, 502335, C02B 134

Patent

active

047326883

ABSTRACT:
A process for treating effluent wherein an oxidizing agent in the effluent is decomposed on contact with a catalyst bed. The oxidizing agent can be a pollutant present in the effluent, for example hypochlorite in the effluent from chlorine-producing brine electrolysis cells or from the scrubbing of chlorine gas. In an alternative the effluent may contain oxidizable pollutants and the oxidizing agent is purposefully added thereto. Passage over the catalyst bed catalyzes the decomposition of the oxidizing agent and oxidizable pollutants.
The catalyst bed comprises an intimate mixture of an oxide of Group III, nickel oxide and, optionally, cobalt oxide, supported on pieces of a non-porous substantially inert material.

REFERENCES:
patent: 3944487 (1976-03-01), Davis et al.
patent: 3965249 (1976-06-01), Kinosz
patent: 4029578 (1977-06-01), Turk
patent: 4073873 (1978-02-01), Caldwell et al.
patent: 4297333 (1981-10-01), Crawford et al.
patent: 4400304 (1983-08-01), Clark et al.
patent: 4508697 (1985-04-01), Burrus
patent: 4562163 (1985-12-01), Endo et al.
patent: 4683065 (1987-07-01), Sheikh

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