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During anaerobic fermentation, the alternation of liquid and solid substances in the substrate makes the bacteria adapt to changing conditions, which significantly reduces the biogas yield, reduces the methane concentration in it, and increases the retention time of the substrate in the bioreactor. The solution to this problem when using cavitation destruction can not only minimize temperature nonuniformity but also solve the problem of the same load on the biocenosis and maximum contact surface of bacteria during anaerobic fermentation in the bioreactor. Studies have shown that the composition and quantity of biogas are not constant and depend on the type of substrate being processed and the biogas production technology. To stabilize the composition of the resulting biogas and bring it to a high-quality, independent alternative energy source, it is possible usingmembrane destruction or crushing of organic raw materials. The energy consumption, fermentation time, and methane concentration in the final biogas output depend on the primary treatment. This work proposes a mathematical model of the process of crushing, dispersing, and blending waste from dairy and fattening farms, which allows to determine and optimize its operating parameters, as well as to promote effective anaerobic fermentation of the substrate in the bioreactor. To determine the mathematical model for the raw materials biological processing with known theoretical or experimental parameters, numerical methods were used, which are one of the powerful mathematical tools for solving the problem. The results of the operational parameters of the studied processes were obtained using the Mathcad environment and tested in the SCADA Trace Mode 6.10.1 automated process control and monitoring software package.

CREATION OF A COMPUTER-ASSISTED MATHEMATICAL MODEL FOR THE RAW MATERIALS BIOLOGICAL PROCESSING