Membrane filtration apparatus and method of making a membrane fi

Details Membrane filtration apparatus and method of making a membrane fi Membrane filtration apparatus and method of making a membrane fi

1992-05-13

1993-03-09

Sever, Frank

Liquid purification or separation

Sectional chamber press type

Medium clamped in joint

210231, 21032175, 21032184, B01D 6150, B01D 6308, B01D 6906

Patent

active

051924340

ABSTRACT:
An apparatus for separating a feed liquid into a concentrate and a permeate fraction by membrane filtration comprises an array of cassette frames (1-5) separated by intermediate plates (10). The array is adapted to be clamped together in its longitudinal direction and loosened, as required, to remove any selected cassette frame. Each cassette frame (1-5) contains a filtration unit (6) comprising a stack of membranes, in which a first flow passage system is provided which connects two free zones (7,8) within the cassette frame, said free zones being so connected as to establish a series or parallel or combined series and parallel flow from a feed liquid inlet (25) to a concentrate outlet (25). In each stack of membranes a second system of flow passages is also provided, which is isolated from said first system and serves to conduct permeate penetrated through the membranes to at least one separate outlet (9) from each filtration unit (6).

REFERENCES:
patent: 3793111 (1974-02-01), Judkins
patent: 3831763 (1974-08-01), Breysse et al.
patent: 3943057 (1976-03-01), Jamet et al.
patent: 4430218 (1984-02-01), Perl et al.
patent: 4479426 (1984-10-01), Olenfalk
patent: 4556488 (1985-12-01), Timm et al.

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