Process for treatment of waste waters

Details Process for treatment of waste waters Process for treatment of waste waters

1978-01-23

1980-06-17

Hart, Charles N.

Liquid purification or separation

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

Responsive to fluid flow

210 51, 210 53, 210 62, 210 64, C02B 120, C02B 136, C02C 140

Patent

active

042082838

ABSTRACT:
A process for treating aqueous industrial or municipal effluent is described, wherein the effluent is treated with lime to a pH of at least 11.0 allowed to settle and the supernatant liquid treated with chlorine at the high pH. A substantially complete kill of micro-organisms, particularly coliforms, is thereby achieved. The liquid, after adjustment to suitable pH, may be returned to natural water streams.

REFERENCES:
patent: 1973168 (1934-09-01), Henderson et al.
patent: 3080315 (1963-03-01), Silvey
patent: 3345288 (1967-10-01), Sontheimer
patent: 3577341 (1971-05-01), Keith et al.
patent: 3645893 (1972-02-01), Rohrer
patent: 3915853 (1975-10-01), Luck
patent: 3947350 (1976-03-01), Cardinal
Mulbarger et al., "Lime Clarification, Recovery, Reuse" JWPCF, Dec. 1969, pp. 2070-2085.

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