FIELD: production of flocculants; purification of wines, juices and drinks; preparation of potable water; treatment of sewage contaminated with petroleum products, ions of heavy metals and non- ferrous metals and suspended particles. SUBSTANCE: proposed method includes modification of clay mineral by derivatives of alkaline hydrolysis- acrylamide copolymers in presence of alkaline reagent. Alkaline reagent is introduced in clay mineral in the amount of 2.0-5.0% and acrylamide copolymer is introduced in the amount of 0.001-0.1% of mass of clay mineral. EFFECT: enhanced economical efficiency; facilitated procedure. 2 cl, 1 tbl, 5 ex
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