FILTERING ELEMENT FOR SEPARATION AND CONCENTRATION OF LIQUID MEDIA Russian patent published in 2019 - IPC B01D63/08 B01D71/00 

FIELD: chemistry.

SUBSTANCE: invention relates to apparatus for separating and concentrating liquid media and can be used in making devices using semipermeable membranes to remove mechanical, colloidal and dissolved inclusions with size of 0.1 mcm and higher, including for chemical, biotechnical industry, as well as in water treatment systems, pharmaceuticals. Filtering element for separation and concentration of liquid media, which is a membrane cassette module, consists of filtering packs equipped with units for supply of liquid medium, output of concentrate and filtrate in form of through holes, each of which includes tightly connected to each other and a single-piece case formed by a sealing adhesive polymer material, a concentration net, a separation frame, a flat track membrane and separating-drainage meshes arranged between them. Units of liquid medium supply and concentrate and filtrate outlet are made with two or three radii of rounding, characterized by size of inscribed angle of 10–170°. Track membranes used are single-sided or double-sided metallized track membranes with metallization thickness of 5 to 100 nm. For metallization titanium or silver or their oxides are used. Number of filtering packs ranges from 1 to 50.

EFFECT: technical result is longer service life of filter element, possibility of sterilizing filter element, high manufacturability of developed filter element, which consists in its multiple use.

1 cl, 3 dwg