Treatment of a liquid by circulation and gas contacting

Details Treatment of a liquid by circulation and gas contacting Treatment of a liquid by circulation and gas contacting

1978-01-16

1981-07-14

Spitzer, Robert H.

Liquid purification or separation

Processes

Treatment by living organism

210629, 210750, 210752, 2101953, 210199, 210220, 261 36R, 261 77, C02F 322

Patent

active

042785464

ABSTRACT:
Process and apparatus for treating waste water by circulating it, together with oxygen-containing gas, through communicating downflow and upflow pipes enclosed in a treatment chamber, the pipes being open at their bottom ends, and controlling the flow of waste water/gas mixture from the downflow pipe to cause gas bubbles to escape downwardly, or part downwardly and part upwardly, in the treatment chamber.

REFERENCES:
patent: 118472 (1871-08-01), Munzinger
patent: 370016 (1887-09-01), Hyatt
patent: 3148143 (1964-09-01), Donath
patent: 3439807 (1969-04-01), Danjes
patent: 3790141 (1974-02-01), Champeau
patent: 3794303 (1974-02-01), Hirshon
patent: 3840216 (1974-10-01), Smith et al.
patent: 3900420 (1975-08-01), Sebba
patent: 3945916 (1976-03-01), Boulenger

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