SORPTION-FILTRATING MATERIAL FOR FILTRATING CARTRIDGE FOR WATER PURIFICATION AND METHOD FOR PREPARATION OF FILTERING CARTRIDGE Russian patent published in 2008 - IPC B01D39/16 B01D24/00 

FIELD: chemistry.

SUBSTANCE: material for cartridge filter for water purification is proposed, which comprises the layers of the fibrous polymeric material with different packing compactness of interconnected microfibers in layers, formed at the porous frame and containing the sorbent particles in one of fibrous layers where the first layer along the purified water stream has the compactness of fiber packing to withhold the 10-20 mcm particles; the second layer contains the sorbent particles and supplementary chemical reagents to transfer the ferrous iron in ferric iron, hydrolysis and coagulation of hydrolised forms, the third layer has the compactness of fiber packing to withhold the 5-20 mcm particles; the fourth layer has the compactness of fiber packing to withhold the 1-2 mcm particles; and the fifth layer comprises the fibrous non woven bottom layer upon the porous frame. The method of preparation of the filter containing the invented sorption-filtering material is proposed.

EFFECT: invention provides high degree of water purification of iron and heavy metals.

6 cl, 1 dwg, 2 tbl, 5 ex