The known methods of cleaning tanks from the remnants of petroleum products using existing means are quite time-consuming, energy-intensive, and insufficiently advanced. In addition, waste cleaning solutions are poorly regenerated and slowly oxidized in the biosphere, and their removal to landfills (or discharge into reservoirs) causes great harm to the environment. Therefore, the search for new methods of cleaning is a very urgent task. This work aims to develop a method for cleaning tanks from the residues of petroleum products based on biotechnology. This article proposes a technological scheme of an experimental installation that simulates a tank for storing petroleum products in agricultural conditions. Studies on the oxidation of petroleum product residues by selected active cultures of microbial strains have been carried out. The modes of biological cleaning of the internal surfaces of tanks for the storage of petroleum products, from their residues, are determined. Strains of oil-oxidizing microorganisms were used as biologics). The biomass of the studied microorganisms was obtained under laboratory conditions by deep cultivation in flasks on a mineral medium. The proposed method of tank cleaning is an environmentally friendly process, during which microorganisms decompose oil pollution at relatively low temperatures (20-40°C) and use hydrocarbons as a source for their growth. As a result of this process, many tons of oil deposits are converted into microbial cells, which in turn become a source of food for other organisms and the plant world.

At present one of the leading places in the world is the development and mastering the production can simultaneously strip tillage and formation of irrigation throws and their use in the sowing of cucurbitaceous crops. The aim parameters the lister body combined strip-till of cucurbitaceous. Methods of classical mechanics have been applied in the research. In the process of research, the degree of layer turnover and soil crumbling by the lister body were determined, a special laboratory unit and strain gauge methods were used. Constructive the preparation fields from under cereals for strip sowing of gourds is the scheme with the lister body, ripper, right- and left-turning extreme bodies and furrow former located along the axis of symmetry. According to the results of theoretical studies, analytical dependences and mathematical models, allowing to determine the width of the lister body, the height of its blade, the size of the layer processed by the body, were obtained. Theoretical and experimental researches show that to provide the width of lister body should be 46 cm and its height 45.

The study aims to substantiate the parameters and operating mode of the oil purification device from oxidation products to improve the efficiency of the use of lubricants. The methods of mathematical analysis and mathematical statistics, comparative comparison, generalization, and testing methods of agricultural machinery are used in the research process. It is established that engine oils are intensively polluted by oxidation products during processing, thereby accelerating the friction process due to the overload of tractor engines. During the performance of agricultural work in the oil composition, the content of oxidation products in the form of carbon, carbon dioxide, and asphalt products increases by 1.2%. Analytical coupling dependences for the process of cleaning motor oils from oxidizing products are obtained, and the dependence of the cleaning efficiency on the device parameters is established. The developed device consists of a container for collecting oils, a steam generator, a container for a sump mixer, a separate container for pure and sedimentary oils, and a vessel for re-collecting acetone. An installation has been developed to implement the technology of collecting and renewing oils in the conditions of the farm. In this case, the amount of contamination and the composition of oils is determined, and the operating mode of the device is selected for their resumption.

Mutual arrangement is a combined machine that performs strip preparation of the soil for sowing. The scheme and the functional scheme of the combined machine are given. Analytical dependences and mathematical models for determining the distance between the support wheels are obtained. In this case, the methods of theoretical and classical mechanics are used. To conduct experimental studies, a strain gauge laboratory and field installation has been developed with the possibility of changing the sheet casing, the ripper, and the main housings. Machines were determined in experiments. The plowshare of the lister housing and the ripper of at least 40 cm, between the main body and the lister housing of at least 70 cm, high-quality soil preparation for sowing melons of the required degree with minimal traction resistance.