FIELD: waste recycling.
SUBSTANCE: invention relates to methods for using secondary waste from stored flotation sludge. The use of secondary waste in the form of calcined sludge obtained from stored flotation sludge of potash enterprises after extraction of palladium, platinum, and silver from them, as fertilizers for potatoes.
EFFECT: use of secondary waste, namely sludge after desliming crushed cinders and tailings after gravitational enrichment of sands as a complex long-acting fertilizer, reclamation additive, and microfertilizer.
1 cl, 3 dwg, 3 ex, 7 tbl
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