Laboratory scale ultrafiltration apparatus

Details Laboratory scale ultrafiltration apparatus Laboratory scale ultrafiltration apparatus

1990-07-30

1992-11-03

Spear, Frank

Liquid purification or separation

Casing divided by membrane into sections having inlet

Planar membrane

210343, 210456, B01D 6118

Patent

active

051604337

ABSTRACT:
Apparatus for separating a base liquid into permeate and retentate fractions includes a semi-permeable membrane and a membrane support plate. The support plate has a plurality of permeate flow channels, equally dimensioned and mutually parallel, formed in its surface. Longitudinal ribs define the permeate flow channels. A manifold distributes a flow of base liquid to one end of the membrane and clamps the membrane to the upper surfaces of the longitudinal ribs, so that the fluid pressure urges the membrane inward where the membrane overlies the permeate flow channels, thereby forming base liquid flow channels in the membrane. Because the base liquid flow channels are of equal dimensions, the flow velocity within the channels is equal across the face of the support plate, minimizing the deposition of undesirable solids. Also, transverse ribs within the permeate flow channels bear against the bottoms of the base liquid flow channels, causing the flow within the base liquid flow channels to become turbulent and thereby further inhibiting solids deposition.

REFERENCES:
patent: 4624784 (1986-11-01), Lefebvre
patent: 4801381 (1989-01-01), Niesen

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