Waste water treatment

Details Waste water treatment Waste water treatment

1978-05-17

1980-08-05

Wyse, Thomas G.

Liquid purification or separation

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

Responsive to fluid flow

55 55, C02B 134, B01D 4706

Patent

active

042160898

ABSTRACT:
Gases are dissolved in aqueous liquids and sludges by employing the preliminary step of subjecting the liquids to a reduced pressure to remove incidental gases dissolved or contained therein, and then dissolving the required gases therein. The invention is of particular utility in the oxidative treatment of surface waters, waste waters or sewage, in which the latter are first de-gassed before being oxygenated. The degassing can be effected by, for example, using a siphon.

REFERENCES:
patent: 3840216 (1974-10-01), Smith et al.
patent: 3939066 (1976-02-01), Bauer
patent: 4002440 (1977-01-01), Saari
patent: 4045336 (1977-08-01), Isteri
patent: 4115258 (1978-09-01), Smith et al.
Howe, "A Low-Energy and Economical Superoxygenation Process," Process Biochemistry, Mar. 1977, pp. 32-33.
Bolton et al., "The ICI Deep Shaft Effluent Treatment Process and It's Potential for Large Sewage Works," Reprint from a Workshop on Large Wastewater Treatment Plants, Vienna, Austria, Sep. 1975.

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