Curved channel membrane filtration
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United States of America Patent
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Apr 20, 1993
Grant Date -
N/A
app pub date -
Jun 24, 1992
filing date -
Jun 24, 1992
priority date (Note) -
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Abstract
A filtration apparatus and method utilizes inner and outer walls of porous material which curve around an axis of curvature to define a narrow channel having a spiral shape. The curvature of the spiral and/or the gap width of the channel is selected to create and maintain Dean vortices within the flow of fluid along the channel to maintain good flux of filtrate through the porous walls.
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