UNTREATED WATER FLOW PATH SEPARATOR AND ROLL-TYPE MEMBRANE ELEMENT EQUIPPED WITH IT Russian patent published in 2019 - IPC B01D63/00 B01D63/10 

FIELD: technological processes.

SUBSTANCE: invention relates to a roll-type membrane element for separation of components dissolved in a liquid. Dividing channel of untreated water has two-layer structure, placed between first separating membrane and second separating membrane, which are wound around the collecting pipe of the membrane element of the roll type, and consisting of the first thread line and the second thread line inclined in opposite directions from each other relative to the direction parallel to the water collection pipe, wherein the untreated water channel separator comprises, in turn: a first mesh structure configured to extend in the second filament series extension direction from the first suture line and the second yarn line; and a second mesh structure configured to extend in the second filament series extension direction from the first filament series and the second filament series, wherein the second filament series interval is smaller than the second filament series forming the first mesh structure.

EFFECT: providing efficient production of permeate from untreated water by suppressing formation of a layer of concentration polarization in the region near the separating membrane.

4 cl, 16 dwg