Wastewater treatment

Details Wastewater treatment Wastewater treatment

1977-04-25

1979-04-17

Wyse, Thomas G.

Liquid purification or separation

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

Responsive to fluid flow

210 7, C02C 104

Patent

active

RE0299707

ABSTRACT:
Method and apparatus for upgrading the capability of existing activated sludge and trickling filter wastewater treatment plants to remove carbonaceous and oxidize nitrogenous pollutants. A single stage biological treatment unit utilizing partially submerged, rotating contactors for the growth of organisms utilizing the carbonaceous and nitrogenous components of wastewater is disclosed. The single stage unit is interposed between the biological treatment unit and final clarifier of the existing plant. Moreover, the existing biological unit is converted to use as a holding tank to absorb fluctuations in flow rate and pollutant concentration and thereby making possible the supply of a constant flow of wastewater to the single unit, while the existing final clarifier is used for the purpose of separating the suspended solids in the effluent from the single stage unit.

REFERENCES:
patent: 3266786 (1966-08-01), Grimes et al.
patent: 3335081 (1967-08-01), El-Naggar
patent: 3547815 (1970-12-01), McWhirter
patent: 3557954 (1971-01-01), Welch
patent: 3596767 (1971-08-01), Antonie
patent: 3654147 (1972-04-01), Levin et al.
patent: 3704783 (1972-12-01), Antonie
Antonie, "Three-Step Biological Treatment with the Bio-Disc Process," presented at the New York Water Pollution Control Association Meeting, Montauk, N.Y., Jun. 12-15, 1972.

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