The proposed method ensures profitable processing of anthropogenic materials (wastes from beneficiation operations) through utilization of heat from the Earth’s interior as a catalyst for the leaching process and using of underground space created after excavations for waste storage.

  The Institute of Mining has developed the method for leaching of valuable components from sulfidecontaining wastes. The method includes preparation of leaching solution using metal-containing ore waters, its
accumulation up to the volume necessary for conducting the leaching process; irrigation of sulfide-containing wastes by the leaching solution; gathering the productive solution and its processing.
     The method has the following distinguished characteristics: sulfide-containing wastes are stored in the underground space of mine workings; leaching solution is heated via the Earth’s internal heat utilization in the volume created below the underground voids; and operations are possible throughout the year in favorable conditions (an elevated temperature of leaching material and leaching solution with a high metal content).
    The technical effect is reduction of costs for leaching of sulfide-containing wastes and reduction in the alienation of lands used for waste storage.