NOVELTY - Treatment of meat industry waste products involves mixing 100 mass parts of waste material with 15-35 mass parts of watery cattle or pig dung and 3-5 mass parts of mucilage of vegetable oil industry and 0.25-0.75 mass parts of copper (II) sulfate of solution. The mixture is heat-treated in two stages, then 0.2-0.7 mass parts of solution of mixture of carbacrole and thymol is mixed and the mixture is incubated. The treated waste product, residue material from biogas production, meat industry sewage sludge, and chopped branches of arboreous plants are mixed together, and composted.    USE - The process is used for treating meat industry waste products produced in slaughterhouses and in meat packing plants. The produced compost may be used as soil fertilizer or as carrier of artificial fertilizers or microbial inoculating preparations.    ADVANTAGE - The process reduces odor and ammonia emission during composting, and enables the common utilization of different kinds of meat industry waste materials. A product, which may be used as fertilizer or as carrier material of large surface, may be produced by an environment-sparing process.    DETAILED DESCRIPTION - Treatment of meat industry waste products involves heat-treating the meat industry waste products, degreasing, and then mixing with other waste materials; and composting the mixture. The pH of the meat industry waste material is set to 5.8-7.0 then 100 mass parts of waste material is optionally mixed with 15-35 mass parts of watery cattle or pig dung buffered to pH of 6.8-7.5 then optionally 0.2-0.7 mass parts of solution of 6-10 mass% of a mixture of carbacrole and thymol in ratio of 1:1 or 0.2:0.8 mass parts of solution of 3-12 mass% of mixture of thymol and magnesium chloride in ratio of 2:1 is added to the mixture then 3:5 mass parts of mucilage of vegetable oil industry and 0.25-0.75 mass parts of copper (II) sulfate of solution of 10-15 mass% are added. The mixture is heat-treated in two stages at 130-160degreesC and at 110-130degreesC respectively. The supernatant fat is removed in both stages, then 0.2-0.7 mass parts of solution of 6-10 mass% of a mixture of carbacrole and thymol in ratio of 1:1 or 0.2-0.8 mass parts of solution of 3-12 mass% of a mixture of thymol and magnesium chloride in ratio of 2:1 is admixed and the mixture is incubated at pH of 7.2-8.4 and 35-43degreesC in anaerobic environment. The 30-40 mass parts of treated meat industry waste product treated having dry material content of 10-40 mass %, 25-30 mass parts of residue material of dry material content of 25-45 mass % originating from biogas production from meat industry waste product, 10-20 mass parts of meat industry sewage sludge of dry material content of 15-30 mass% and fat content of at least 20 mass%, 2-35 mass parts of chopped branches, twigs vine-branches or stalks of arboreous plants which were pre-treated with culture of microorganism Peniophora gigantea and/or that of Ceriporiopsis subvermispora, are mixed together and the mixture is then homogenized. The dry material content is set to 40-48 mass%. The mixture is optionally pre-milled and undergoes wet grinding until the grain size less than 2 mm is reached and the mixture is composted in open or closed stacks, the compost is sieved after the thermophilic composting stage, the particles larger than 2 to 2.5 cm are separated and the free grained material is further composted.    DESCRIPTION OF DRAWING(S) - The figure shows the temperatures of stacks measured every day during compost making.