The article discusses the prospects for the development of environmental management in the disposal of livestock waste, in particular liquid manure, as part of an industrial approach to it. The data on the concentration of nutrients in liquid manure depending on its moisture are presented. Based on the analysis of empirical data and the results of previous studies, an exponential dependence is derived that indicates the relationship between the initial moisture content of liquid manure and its final volume. Criteria of effective utilization of liquid manure are formulated taking into account environmental and technological specifics.

The methodology for assessing the energy efficiency of operating actions during the separation of organic contaminants of wax has been developed. Promising methods of separation of media with complex types of bonds are proposed. The dependences characterizing the energy efficiency of separating methods for the wax raw materials have been determined. Mathematical models are obtained in the form of quadratic polynomials characterizing the influence of design parameters on energy characteristics. The influence of the design parameters of the device and the technological properties of the exposed materials in the form of wax raw materials on the values of active and reactive power has been proved. It has been established that the most rational measure for increasing the energy characteristics of devices for separating wax raw materials is to optimize their design and technological parameters.

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Бышов Николай Владимирович Byshov Nikolay Vladimirovich д.т.н., профессор dr.tech.sci., professor РИНЦ SPIN-код=1630-3916 RSCI SPIN-code=1630-3916 Борычев Сергей Николаевич Borychev Sergey Nikolaevich д.т.н., профессор dr.tech.sci., professor РИНЦ SPIN-код=9426-9897 RSCI SPIN-code=9426-9897 Кокорев Геннадий Дмитриевич Kokorev Gennady Dmitrievich д.т.н., доцент dr.tech.sci., assistant professor РИНЦ SPIN-код=9173-7360 RSCI SPIN-code=9173-7360 Колотов Антон Сергеевич Kolotov Anton Sergeevich к.т.н. cand.tech.sci. РИНЦ SPIN-код=7869-6590 RSCI SPIN-code=7869-6590 Колупаев Сергей Васильевич Kolupaev Sergey Vasilevich к.т.н. cand.tech.sci.

Agricultural machinery is operated in difficult conditions and severe environment. Due to contact with road surfaces, soil, plants, fuels and lubricants, as well as fertilizers and pesticides, when changing temperature conditions and under the influence of a number of other factors, surfaces of agricultural machinery become old and corroded, which reduces their performance and worsens some of its parameters. Most agricultural machines are operated from 10-15 to 55-60 days during the year, and for the remaining time, they are subject to high-quality storage. During long-term storage, the dimensions of parts change due to corrosion, as well as the quality of their material decreases due to structural transformations and residual deformations caused by the machine’s own weight. Efficiency and its service life can increase by 10-15% due to the application of a protective coating on the surface of agricultural machines, which reduces the influence of external factors on their safety. The use of a developed spray gun in the design of a hydraulic installation for applying a protective coating on the surface of agricultural machinery allows one to reduce unit costs by 13.8% and electricity costs by 12.3%. The economic effect of using a hydraulic coating system with the developed spray gun will amount to 75,539.3 rubles per year when processing 124.9 m2 of agricultural machinery surface.