Aerator

Details Aerator Aerator

1978-12-01

1980-10-28

Spitzer, Robert H.

Liquid purification or separation

Processes

Chemical treatment

210194, 210220, 210242A, 261 77, 261DIG75, C02B 308, B01F 304

Patent

active

042305705

ABSTRACT:
An aerator for the treatment of liquid by immersion in the liquid to form in the liquid a liquid stream and introduced gas bubbles. The stream is to be produced with efficient use of power to have sufficient bubbles small enough to avoid waste by bubbles reaching the surface too quickly. The aerator has a pressure chamber (49), with a liquid inlet and gas inlets (422) positioned between the liquid inlet and a restricted outlet throat (47) associated with a chamber wall surface (44) arranged to direct an outlet stream deflected from the liquid inlet direction. The aerator can be formed without immersed moving parts by two tubes, a smaller inner one (41) expanding toward an outer larger one (42) to define the throat and pressure chamber and wall surface. The gas supply is applied through holes large enough to resist algal obstruction at a position where the gas and water enter a part of the pressure chamber of reducing cross-section for subsequent deflection out of the throat.

REFERENCES:
patent: 323325 (1885-07-01), Hambruch
patent: 895229 (1908-08-01), Beddoes
patent: 1900809 (1933-03-01), Hammerly
patent: 2630749 (1953-03-01), Ball et al.
patent: 3855367 (1974-12-01), Webb
patent: 4043913 (1977-08-01), Hintermeister
patent: 4044079 (1977-08-01), Tveit
patent: 4051204 (1977-09-01), Muller et al.
patent: 4086306 (1978-04-01), Koshinaga

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