Disinfection of aqueous media

Details Disinfection of aqueous media Disinfection of aqueous media

1980-08-01

1982-01-19

Therkorn, Ernest G.

Liquid purification or separation

Processes

Chemical treatment

210759, 210764, 424130, 424140, C02F 170, C02F 150

Patent

active

043115985

ABSTRACT:
The present invention relates to processes and compositions for the disinfection of aqueous media and particularly bacteria-containing aqueous effluents, e.g. treated municipal sewage or effluents from paper or food-processing industries, employing hydrogen peroxide-containing compositions as an alternative to chlorine. Specifically, the disinfectant comprises a combination of hydrogen peroxide, a soluble copper salt such as copper sulphate and an autoxisable reducing agent such as ascorbic acid or sodium sulphite, which can be employed in dilute concentrations at pH from 6 to 9, preferably 6.5 to 8. Particularly preferred combinations of the components are of mole ratios 1:1 to 60:1 of hydrogen peroxide:copper: and 5:1 to 1:1.2 copper:reducing agent.

REFERENCES:
patent: 2287847 (1942-06-01), Webb
patent: 2902400 (1959-09-01), Moudry
patent: 3065139 (1962-11-01), Ericson
patent: 3200069 (1965-08-01), Eisenhauer
patent: 3329607 (1967-07-01), Colobert
patent: 3510424 (1970-05-01), Zumbrunn
patent: 3681492 (1972-08-01), Kotzbauer
patent: 3702298 (1972-11-01), Zsoldos
patent: 3715309 (1973-02-01), Zumbrunn

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