Technology of Poultry Manure Utilization as a Renewable Energy Source

Abstract

the aim of the research is to improve the efficiency of technologies for recycling poultry manure. The achievement of this goal involves the development of technological regulations for the processing of manure, research and development work on the creation of technological lines for the production of fuel briquettes and organic fertilizer, development of the technological process of processing of manure and its introduction into production. The technological scheme of the manure processing complex has been developed and substantiated, which includes: a receiving and storage station for receiving manure coming from poultry houses, and its dosed supply for further processing; a container for collecting liquid formed during the drying of manure; a technological line for the production of fuel briquettes and a line for the production of organic-mineral fertilizer. The capacity of the complex with a litter moisture content of 65-70% coming for processing is about 5 t/h. It is proved that the annual processing of manure at the round-the-clock operation of the complex will be about 43.0 thousand tons. At the same time, the production of organic-mineral fertilizers with a nutrient content of up to 32% will be about 1.5 thousand tons, and the fuel briquettes with a calorific value of up to 18.0 mJ/kg will be about 8.0 thousand tons. The estimated annual economic effect from the processing of litter on this complex is about 20.0 million rubles, the payback period of the complex is up to 1.5 years. This technology of poultry manure utilization allows to process all poultry manure removed from poultry houses in the stream, as a result of which there is no need for a litter storage. The production of organic fertilizer can solve the problem of increasing soil fertility. When the price of one ton of this fertilizer is 5thousand rubles and the contents until 320 kg of active ingredient, its use in the cultivation of crops would be economically profitable. As a result of the utilization of manure through this technology, the company receives energy, agro-chemical, economic, environmental and social effects.