METHOD OF PURIFICATION OF CONTAMINATED WATER OF SURFACE WATER RESERVOIRS Russian patent published in 1999 - IPC

FIELD: chemical industry, more particularly, purification of water of surface water reservoirs. SUBSTANCE: described is method of purification of water of surface water reservoirs contaminated with inorganic substance, e. g. heavy metals and organic substances, e.g. petroleum products by introducing sorbent, flocculant, coagulant and mineral turbidifying agent. Sorbent and turbidifying agent include mixture of hydrolyzed coarsely and finely dispersed alumosilicates, and flocculant includes colloidal dispersive alumosilicates, and coagulant includes molecular dispersive aluminium hydroxides of aluminium, silicon, iron, titanium, calcium and magnesium in total amount. EFFECT: improved efficiency of purification of contaminated water. 2 cl, 2 tbl