The study on the utilization of poultry droppings put forward the need for the constructive and technological improvement of the biofermentation device. A drum-type bioreactor better meets the requirements for the technological process of eco-friendly biologically active fertilizer production from livestock and poultry wastes. However, the great size of the heat transfer surface of the bioreactor drum and its significant ejection momentum during spinning require quite a lot of energy. To decrease this consumption, the main constructive parameters should be optimized. The main reason is the sharp increase in prices for mineral fertilizers, the weak economic condition of most farms, the lack of advanced processing technologies and the use of organic fertilizers. Our aim in these studies was to analyze the types of design and operating parameters of the device for the fermentation of bird droppings. To this end, we conducted a study on the disposal of bird droppings, and also put forward the need for constructive and technological improvement of the biofermentation device. One of such ways to solve the problem was a drum-type bioreactor, which, according to our research indicators, better meets the requirements for the technological process of producing environmentally friendly biologically active fertilizers from animal husbandry and poultry waste, however, the size of this equipment of the heat transfer surface of the bioreactor drum and its significant emission pulse during rotation require a rather large waste of energy. To reduce this consumption, it is necessary to optimize the basic design parameters. Devices that work continuously were recognized as the most promising. They fully meet the technological and operational requirements

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One of the important problems in the modern world is to provide the population with high-quality food. So, today the agricultural sector faces the main task of increasing the production of agricultural products, as well as the use of agricultural waste. Poultry farming is one of the main branches of the agricultural sector. The main task facing farmers is to improve the conditions and technology for feeding and keeping farm birds, and one of the important tasks is the state of indoor air in this regard, the problem remains open. Therefore, the main way to solve this problem is the preferred transition to intensive technologies in order to realize the efficiency potential in poultry farming. However, the intensification of the area increases the anthropogenic load on the environment. The main source of environmental risk is the systems of disposal of bird droppings. Our research has shown that 85 % of the negative impact on the environment is caused by poultry and animal husbandry waste. Lighting also plays an important role in poultry farming. Thus, lighting is the basis for electricity consumption. Both natural and industrial lighting is important for the physiology of birds and their development, but, unfortunately, it is quite energy-intensive. In this regard, the idea of solving this problem is being created, it is the development and application of new, efficient, inexpensive and environmentally friendly technologies that are important for large-scale research. Therefore, it is necessary to take into account that most poultry farms are equipped with simple mechanical ventilation systems without cooling. So, an increase in productivity is possible through the introduction of intensive technologies, while the economic assessment of the use of evaporation plants, the disposal of bird droppings and LED lighting can be of practical importance.

The processing of poultry droppings under anaerobic conditions, in special hermetic reactors – methane tanks is considered to be the most promising technology in terms of efficiency in agrochemical, environmental, and energy fields. Organic fertilizer in the methane tank is in the form of concentrated liquid, purified from disease causatives and weed seeds. It is easily absorbed by fermented plant mass and contains macro and micronutrients, amino acids and phytohormones that stimulate the development of the plant. The rare utilization of such facilities is explained by the lack of funds for their purchase. On the other hand, it is assumed that biogas is not a dominant factor in terms of economic efficiency, and organic fertilizer is also important. In this respect, the utilization of poultry droppings has also gained practical relevance. The paper covers the discussion of the feasibility of utilizing poultry droppings as a non-waste technology. The methodological approach is based on the evaluation of more rational technological projects. In logical modeling, the rules drawn up by highly qualified specialists are used. The rules determine how to act in a certain situation. Such rules are considered favorable for non-skilled performers. The results of the studies have allowed analyzing the dynamics of nitrogen preservation depending on the utilization technology of poultry droppings and impact factors. Based on a mathematical model, a computer methodology for research on improving the energy efficiency of a poultry farm has been developed. The number of LEDs (α=200, I0=20 kd) for a 66×12 m poultry house using a computer program N=273 pcs., the number of LEDs (α=200, I0=20 kd) for a building with dimensions of 78×18 m N=259 pcs. The design parameters of the lamps are substantiated

An analysis of the projects for the utilization of bird droppings is carried out, a model of a multi-level process of technological design with a choice of an erroneous solution at every step is presented.