Membrane diffusion device having ribbed membrane support

Details Membrane diffusion device having ribbed membrane support Membrane diffusion device having ribbed membrane support

1974-10-21

1976-06-15

Spear, Jr., Frank A.

Liquid purification or separation

Casing divided by membrane into sections having inlet

Energy recovery from treated liquid

210494M, B01D 3100

Patent

active

039636216

ABSTRACT:
A membrane diffusion device is disclosed which comprises flat, tubular, semipermeable membrane, and flexible, ribbed membrane support sheet positioned against said membrane and typically rolled up together into a coil. In accordance with this invention, a first set of membrane supporting ribs is disposed on one side of the support sheet with the ribs of the first set being disposed in longitudinal relation to the axis of the tubular membrane, the ribs of the first set also defining spaced apertures to permit fluid flow transversely across the membrane. A second set of membrane supporting ribs is disposed on the other side of the membrane support sheet at an angle to the tubular membrane axis.

REFERENCES:
patent: 3687293 (1972-08-01), Carter
patent: 3743098 (1973-07-01), Martinez

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