FIELD: physics.
SUBSTANCE: invention relates to physics and may be used in extraction of noble metals, namely, gold, platinum, tin, copper, etc, from waste banks. For this, acoustic and electromagnetic waves are radiated into waste bank, in its area of subsequent extraction of technogenic sands. Prior to loading technogenic sand in receiving bin of washing tool, said sands are also irradiated by said waves. Then, said sands are intensively processed by acoustic waves in receiving bin, classifier and washing tool main and additional locks. Further, technogenic sands are intensively processed by acoustic and electromagnetic waves in first and second magneto-acoustic hydro cyclones. Then, industrial effluents from second magneto-acoustic hydro cyclone are directed into bottom section of settler for circulation waters. Suspended substances are subjected to low-frequency travelling hydro acoustic signals for acoustic coagulation, smaller and faster particles are mechanically forced to larger and slower particles. Simultaneously, suspended particles and colloidal particles are coagulated by high-frequency hydro acoustic waves at settler top section. Besides, acoustic signals force initial and coagulated suspended particles from water top layer to bottom layer and to settler floor.
EFFECT: higher yield of noble metals.
10 dwg, 3 tbl, 1 ex
