The paper proposes a highly efficient equipment for the preliminary mechanical treatment of wastewater from agricultural enterprises, ensuring a continuous working process, the necessary quality of cleaning with minimal energy expenditure. The equations for determining the basic operating parameters of the equipment are given: changes in the flow area, flow rates of water passing through the installation, the required power of the electric motors. Also presented are graphical dependencies calculated using the obtained equations.

An analysis of the technical solutions of milking machines with controlled vacuum mode and theoretical studies of the operation of the milking machine actuator, which allows to reduce the vacuum load on the udder and the impact on the sphincter of the cervix and prevent "idle" milking in high vacuum in the machine process. The completeness of milking cows and reducing the incidence of their mastitis depends to some extent on the operation of milking equipment. Performance indicators of the technological process of serial milking equipment do not always fully comply with the current zootechnical requirements. During their work at the beginning and at the end of the milking of the animal there may be a process of "idle" milking at high vacuum, which often leads to the disease of animals with mastitis and subsequent culling. Along with the increase in milk production, quality is becoming extremely important. The analysis of the known technical solutions of milking machines with a controlled mode of milking shows that the domestic and foreign industry do not produce milking machines with a controlled mode of milking, which fully correspond to the physiology of animals. In our opinion, the most effective one is to consider a milking machine with a low-inertial milk flow sensor, which controls the vacuum mode, both in poddyah and interstitial chambers of milking glasses. Conducted theoretical studies of the working process of machine milking allowed to systematize the engineering calculation method of milking machine with a controlled mode of operation and to determine the optimal design parameters of the actuators. The analytical expressions obtained characterize the influence of their parameters and mode of operation on the dynamics of milk production during machine milking of cows.

The main requirements for manure transportation and treatment systems are the following: ensuring the isolation of manure flows from air, soil, water; ensuring the maximum possible disinfection; ensuring the conversion of chemical elements into a form suitable for consumption by plants. The aim of the research is to analyze the technical and technological equipment of liquid manure processing processes using the process activation unit (UAP) using vortex layer devices (VHF) of ferromagnetic elements. As a result of the analysis of liquid manure processing technology of pigs it is established that the most effective technology in the conditions of Ukrainian farms is liquid manure processing by means of process activation unit (UAP) using vortex layer devices (VHF) of ferromagnetic elements. The essence of the proposed technology is that the manure together with the appropriate reagent in the working area of UAP is activated, which significantly accelerates the chemical reactions associated with the hydrolysis of fatty substances contained in effluents (alkaline environment). At the same time suspended substances in the manure are mechanically treated with ferromagnetic elements. Disinfected liquid manure at the exit of UAP has no specific odor, can accumulate in open manure storages (lagoons) directly on the farm. As a result of the analysis of the principle of work of installation of activation of processes features of its use are established: reception of multicomponent suspensions and emulsions; acceleration of the processes of obtaining fine mixtures, activation of substances both in the dry state and in the form of aqueous dispersions; for purification of industrial wastewater from phenol, formaldehyde, heavy metals, arsenic, cyanide compounds, acceleration of heat treatment processes, obtaining protein substances from yeast cells; increasing the microbiological stability of food and yeast activation in the bakery industry; intensification of extraction processes, including during the preparation of broths, production of berry drinks (juices), pectin, etc .; to obtain suspensions and emulsions of increased microbiological safety in the food industry without the use of stabilizers, as well as increase the yield of finished products.

Domestic and foreign industries do not produce milking machines that would fully comply with the physiology of animals. Full milking of the udder and reduction of cows with ma-stit significantly depends on the operation of the milking machine. The quality of serial milking cups does not fully meet modern zootechnical requirements. In the process of their work, especially at the beginning and at the end of milking cows, "idle" milking can take place at nominal vacuum. Milking at high vacuum often irritates the teat sphincter, which often causes mastitis in animals, followed by cancer. Also, along with the growth of milk production, its quality is extremely important. The main technical solutions for milking machines with controlled change of vacuum pressure are analyzed. Some theoretical and experimental studies of the milking machine, which provides a reduction of the vacuum load on the udder and a rigid vibration effect on the teat sphincter at nominal vacuum in the process of machine milking cows. Despite the many known solutions to improve the milking machine, the task of creating a design that combines high productivity and stimulation of the reflex remains relevant. Designs of milking machines are now being improved mainly in two directions, namely - the development of milking machines that allow you to adjust the operating parameters depending on the level of milk yield and design improvements of milking machines that stimulate the milk reflex without causing the animal negative effects. Theoretical studies of the working process of machine milking allowed to systematize the method of engineering calculation of the milking machine with controlled mode of vacuum pressure on the teats of the cow and to determine the optimal design parameters of the executive mechanisms. The obtained analytical expressions characterize the influence of their parameters and mode of operation on the dynamics of milk production during machine milking of cows.