FIELD: chemistry.
SUBSTANCE: invention relates to agriculture. The method of processing dung wastes of pig-breeding complexes, which involves feeding phosphogypsum into a dung storage container and obtaining liquid decontaminated fertiliser, wherein phosphogypsum with pH 3.0-3.5 is added to liquid pig manure and humus is added 2-3 days after the sharp foul smell disappears. All components are taken in a defined ratio. The material is then mixed until a homogeneous mass is obtained and the substrate is held for 1-2 months.
EFFECT: invention enables to obtain liquid decontaminated fertiliser while reducing labour input and power consumption.
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