Aqueous waste treatment

Details Aqueous waste treatment Aqueous waste treatment

1979-04-09

1982-05-18

Therkorn, Ernest G.

Liquid purification or separation

Processes

Treatment by living organism

210150, 261 87, 261 92, 13762511, 13762515, G02F 308

Patent

active

043304087

ABSTRACT:
Bio-oxidative treatment of aqueous waste by means of a partially submerged rotating biological contactor (or RBC) is improved by suffusing the rising submerged quadrant of an RBC with air furnished within the RBC perimeter. Air is distributed along and outward from the rotational axis and is released between discs of the RBC. Some of the air so released is trapped by protrusions on the discs. Rotation of such RBC is accomplished or at least aided by differential buoyancy imparted by such air suffusion and trapping.

REFERENCES:
patent: 2036280 (1936-04-01), Knight
patent: 2278246 (1942-03-01), Cordova
patent: 2998099 (1961-08-01), Hollingsworth
patent: 3688905 (1972-09-01), Nordgard
patent: 3773078 (1973-11-01), Suntheimer
patent: 3779911 (1973-12-01), Freudenthal
patent: 3886074 (1975-05-01), Prosser
patent: 3956127 (1976-05-01), Holmberg
patent: 4093539 (1978-06-01), Guarino
Water and Wastes Engineering, Sep. 1977, Water Pollution Control, special issue, Nelson.

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