Concentration of solids in a suspension using hollow fibre membranes
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United States of America Patent
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Jul 1, 1997
Grant Date -
N/A
app pub date -
Feb 22, 1995
filing date -
Aug 7, 1991
priority date (Note) -
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Abstract
A method of concentrating solids in a liquid suspension using a microporous filter assembly having a plurality of hollow microporous, elastic membranes within a vessel, the method including the steps of applying the suspension to an outer surface of the hollow fibers whereby a portion of the suspension passes through the fibers walls and at least a portion of the solids is retained on or in the hollow fibers or within the vessel as suspended solids; dislodging the retained solids from the fibers by applying a gas under pressure after opening the vessel to atmospheric pressure.
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