Flat separation membrane leaf and rotary separation apparatus co

Details Flat separation membrane leaf and rotary separation apparatus co Flat separation membrane leaf and rotary separation apparatus co

1992-08-26

1994-01-04

Sever, Frank

Liquid purification or separation

Casing divided by membrane into sections having inlet

Membrane movement during purification

21032175, 21032184, 210331, 21050021, 210506, B01D 6316

Patent

active

052757250

ABSTRACT:
The present invention provides a flat separation membrane leaf, which is characterized by consisting of a flat membrane support comprising an inner layer having a coarse structure and surface layers comprising a nonwoven fabrics having a dense structure, wherein the surface layers are integrated with the inner layer interposed between them, and semipermeable membranes covering both sides of the support in such a manner that the semipermeable membranes penetrates into the openings of the nonwoven fabrics of the surfaces of the support to combine the semipermeable membranes with the surfaces of the support. The invention provides also a flat separation membrane element which comprises, as the essential component, the above-described flat separation membrane leaf.

REFERENCES:
patent: 4894155 (1990-01-01), Leoncavallo et al.

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