Semi-permeable membrane liquid filtration apparatus including el

Details Semi-permeable membrane liquid filtration apparatus including el Semi-permeable membrane liquid filtration apparatus including el

1983-11-09

1987-05-19

Sadowski, David

Liquid purification or separation

Casing divided by membrane into sections having inlet

Energy recovery from treated liquid

2104332, 210456, B01D 1300

Patent

active

046666036

ABSTRACT:
An apparatus for the ultra or hyperfiltration of liquids to form a permeate fraction and a concentrate fraction includes a stack of membranes and membrane support plates. The stack includes two longitudinally extending main flow passages connected with a plurality of flow passages extending along the surfaces of the membranes. There is provided a device for blocking the flow of liquid from one main flow passage to the other in a zone around the center line between the two main flow passages. Ribs may be provided having a height which increases when viewed in a direction from the central part towards the periphery of a membrane support plate with the object of obtaining an improved distribution of liquid over the membrane surfaces.

REFERENCES:
patent: 3827563 (1974-08-01), Boe et al.
patent: 3847818 (1974-11-01), Madsen et al.
patent: 3872015 (1975-03-01), Madsen
patent: 4115274 (1978-09-01), Boddeker et al.
patent: 4324658 (1982-04-01), Esmund

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