Gas and liquid contact apparatus – Contact devices – Injector type
Patent
1989-02-10
1990-04-17
Miles, Tim
Gas and liquid contact apparatus
Contact devices
Injector type
261120, 261122, B01F 304
Patent
active
049178326
ABSTRACT:
An air lift diffuser for use in the aeration of a body of water including an air lift tube and a gas diffuser located a distance below the open bottom end of the air lift tube. The distance in question is sufficiently large that there is substantially no obstruction to the passage of water from the space surrounding the air lift diffuser into the space between the air lift tube and the diffuser, but at the same time is not so large that rising air bubbles are likely to escape and flow outside the air lift tube. In one embodiment, a cylindrical return tube is provided around the air lift tube that directs the water stream and gas bubbles entrained therein downward, after they have risen in the air lift tube, so as to return the aerated water to the lower levels of the body of water being aerated.
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Copco, Limno Hypolimnion Aerator, Atlas Copco AB, 5-105 23 Stockholm, Sweden.
Fieselman Troy W.
Marcum Thomas J.
Weber Richard B.
Miles Tim
Wilfley Weber, Inc.
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