Deep submergence rotating biological contactor apparatus

Details Deep submergence rotating biological contactor apparatus Deep submergence rotating biological contactor apparatus

1985-09-23

1987-05-26

Wyse, Tom

Liquid purification or separation

With gas-liquid surface contact means

210199, 261 92, C02F 308

Patent

active

046683879

ABSTRACT:
A wastewater treatment apparatus is disclosed in which a rotating biological contactor rotatably mounted on a horizontal shaft is deeply submerged in a wastewater tank, so that a substantial portion of attached biomass does not come into contact with the ambient air. A plurality of gas conduits are disposed in the tank beneath the rotating contactor and are positioned to provide rotational energy to the contactor, to serve as the principal source of oxygen for the submerged biomass and to regulate the rotational velocity of the biological contactor so that the oxygen containing air bubbles are caused to rise into the central region of media rather than being swept along and confined to the outer radius of the media as it rotates.

REFERENCES:
patent: 650063 (1900-05-01), Kersten et al.
patent: 3704783 (1972-12-01), Antonie
patent: 3886074 (1975-05-01), Prosser
patent: 4093539 (1978-06-01), Guarino
patent: 4160736 (1979-07-01), Prosser
patent: 4284503 (1981-08-01), Stahler
patent: 4330408 (1982-05-01), McClure

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