FIELD: process engineering.
SUBSTANCE: invention relates to membrane with permeable channel consisting of 3-D lining material comprising top and bottom surfaces (2, 3) interconnected via monofilament threads (4) and spaced apart for distance subject to the length of monofilament threads. Said permeable channel is arranged between two membrane layers (12, 13). Said membrane layers are connected at multiple points with said material of top and bottom surfaces to produce high adhesion suitable for back-flushing. This invention relates also to the method of fabrication of aforesaid membrane with integrated permeable channel that comprises the following stages: producing 3-D lining material including that of top and bottom surfaces (2, 3) and applying membrane layer on aforesaid surfaces.
EFFECT: possibility of back-flushing, sustaining high pressure and longer life.
21 cl, 1 ex, 13 dwg
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