FIELD: waste water treatment. SUBSTANCE: known substance from ground quicklime (1.0-2.0 parts) and clayey minerals in the form of hydromica and/or montmorillonite and/or palygorskite (0.5-1.0 part of one of them) is supplemented by sodium metasilicate (1.0 part) and clayey minerals additionally include kaolinite and/or bentonite, beidellite, and others. Clayey minerals in the form of natural clays are preliminarily dehydrated and treated with ammonia solution. Efficiency of substance is provided by chemical precipitation of dissolved metals in the form of hydroxides, basic salts, and silicates, as well as by sorption. Simultaneously, coagulation and flocculation of formed suspensions and suspended materials contained in initial water occur, also in presence of surfactants. EFFECT: enhanced treatment efficiency. 2 cl, 1 tbl
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