Method of treating waste water

Details Method of treating waste water Method of treating waste water

1979-07-27

1981-05-19

Castel, Benoit

Liquid purification or separation

Processes

Including controlling process in response to a sensed condition

210759, 210903, C02F 172

Patent

active

042683971

ABSTRACT:
A waste water-treating method, which comprises the steps of: adjusting the pH value of an aqueous solution containing a nitrous acid radical within a range of 2 to 5; treating said aqueous solution with hydrogen peroxide to oxidize the nitrous acid radical into a nitric acid radical; and throwing away the waste water in the neutralized form.

REFERENCES:
patent: 3826741 (1974-07-01), Nakamura

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