Method and arrangement for aeration of liquids

Details Method and arrangement for aeration of liquids Method and arrangement for aeration of liquids

1981-12-10

1983-12-06

Castel, Benoit

Liquid purification or separation

Processes

Treatment by living organism

210194, 210199, 261 87, 261 93, 435314, 435315, C02F 320, C12M 106, C12M 108

Patent

active

044192444

ABSTRACT:
A method of aerating liquids, particularly for aerobic growing of microorganisms, has the steps of forming a circumferential stream of liquid, forming a longitudinal stream of liquid, and superimposing these streams so as to form a combined closed spiral-shaped stream. An arrangement is provided in which the circumferential stream is formed by an upright conduit tube and an impeller, the longitudinal stream is formed by a distributing element with a plurality of nozzles, and the superimposing of the streams is attained by fixedly mounting the distributing element relative to the impeller.

REFERENCES:
patent: 2944802 (1960-07-01), Daman
patent: 3409130 (1968-11-01), Nakamura
patent: 3813086 (1974-05-01), Ebner et al.
patent: 3904393 (1975-09-01), Morse
patent: 4029724 (1977-06-01), Muller et al.
patent: 4073696 (1978-02-01), Muller
patent: 4078026 (1978-03-01), Fallenius
patent: 4283357 (1981-08-01), Sidery

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