Solution of environmental problems of livestock breeding through intensification of waste treatment processes

Abstract

Intensification of anaerobic processing of animal waste has a significant effect in comparison with other methods, which is expressed in a significant reduction in the pollution of environmental objects (air, water and soil) with chemicals and pathogenic microflora. The paper shows the developed technology of anaerobic processing of animal products, which allows one, on the one hand, to solve the environmental problems of animal husbandry, and on the other hand, to produce biogas fuel. The design features of the experimental setup for research are considered. The main indicators of the initial and re-loading manure and the properties of the resulting biogas have been analyzed. It was concluded that a promising direction for increasing the yield of biogas, as well as methane in its composition, it is advisable to improve the design of the bioreactor, to increase the productivity of the bioreactor and reduce the HRT through the use of a leaching layer and immobilization of microorganisms. At the same time, preliminary grinding of the raw material allows one to obtain a relatively better result.