Fluid treatment apparatus with semi-permeable membranes, useful

Details Fluid treatment apparatus with semi-permeable membranes, useful Fluid treatment apparatus with semi-permeable membranes, useful

1987-02-06

1988-11-22

Sever, Frank

Liquid purification or separation

Casing divided by membrane into sections having inlet

Each section having inlet

2104932, 21050034, 21050043, B01D 1300

Patent

active

047864109

ABSTRACT:
The invention relates to a fluid treatment apparatus resulting from the stacking of plates 1 each having, on each of their two main faces, a treatment zone 3 provided with ribs 2, the two membranes being placed between the opposite faces of each adjacent plate 1 of the stack. The two membranes between each adjacent plate are held at a multiplicity of points by the ribs of adjacent plates, at least one rib, and preferably both, at each such point having at least one portion 14 of maximum height H only over a length l which is less than the total length L of that rib or the distance between maximum height portions on that rib. The apparatus is particularly useful in the medical field, especially as a haemodialyser.

REFERENCES:
patent: 3734298 (1973-05-01), Riede et al.
patent: 3907687 (1975-09-01), Hoeltzenbein
patent: 4053417 (1977-10-01), Newman
patent: 4113625 (1978-09-01), Riede

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