SORPTION-FILTERING CHARGE FOR CLEANING WATER AND METHOD FOR MAKING IT Russian patent published in 2001 - IPC

FIELD: sorption-filtering materials for cleaning water and processes for making them. SUBSTANCE: sorption-filtering charge for cleaning water includes peat and fibrous material and it is made in the form of layers. Fibrous material is in the form of non-woven fibrous material on base of natural fibrous matters; peat is in the form of dried pelletized acid-treated peat placed between layers of non-woven fibrous material. Method for making charge comprises steps of preliminary treatment of components by acid and subsequent formation of charge at successively arranging components while placing pelletized peat between layers of non-woven fibrous material. EFFECT: enhanced efficiency of cleaning water. 9 cl, 1 dwg, 1 tbl, 2 ex