FIELD: chemistry; pharmaceutics.
SUBSTANCE: group of inventions relates to separation of liquid medium by filtration by means of tangential flow and can be used for production of drinking water and treatment of industrial waste water, in chemical, petrochemical, pharmaceutical, food industry and in biotechnology. Element for separation of liquid medium into permeate and retentate includes: inorganic solid porous base (2), containing, on one side, first external flat surface (3) and, on the opposite side, second outer flat surface (4), connected by outer connecting surface (5); at least one group of at least two circulation channels (6) for a liquid medium, made in a porous base, each of which has a rectangular cross-section; at least one internal connection system (10) for distributing the liquid medium in a group of at least two circulation channels and at least one internal connection system (12) for collecting retentate from the group of at least two circulation channels, as well as system collection (7) of permeate. At that, internal connecting distribution system (10), circulation channels (6) and internal connecting collection system (12) contain at least one separating layer continuously passing between inlet (11) and outlet (13) of porous base. Material of porous base (2) is continuous and has a porous structure and mechanical strength, which enable to avoid destruction of the porous base when the pressure difference of the liquid medium between the separating layer and the surface of the permeate outlet is at least 1 bar. Also disclosed are versions of the separating unit, which include at least one said separating element.
EFFECT: group of inventions provides the possibility of effective removal of blockages in order to increase flow rate of filtrate and/or reduce power consumption of filtering plants with simultaneous simplicity of manufacturing.
20 cl, 31 dwg
