Gas diffuser with indefinite life and mixed bubble size capacity
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United States of America Patent
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-
Dec 10, 1985
Grant Date -
N/A
app pub date -
Sep 24, 1984
filing date -
Sep 24, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A diffuser for dispersing gas into a body of liquid that may contain suspended solids. Under ordinary clogging conditions, the diffuser will remain operative over an indefinite period of time by reason of large gas outlet openings at the bottom of the gas plenum chamber. In addition, it can be employed for a good portion of that time to disperse a substantial flow of coarse bubbles and fine bubbles, in a desired combination, simultaneously from a single gas plenum. Careful selection of the permeability and area of a top porous wall of a gas plenum chamber, together with proper selection of the level, size and number of coarse bubble gas outlet openings in the side walls of the plenum chamber, achieve the second feature.
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