Experimental Studies of the Process of Obtaining Biogas from Wastes from Agricultural Enterprises

Abstract

At present, alternative energy systems are widely used in many countries of the world. One of the promising areas of alternative energy is the production of biogas from the organic waste of agricultural enterprises. To study the biogas production process, an experimental setup with a bioreactor of 5 liters was developed. A series of full-scale experiments on the effect of the composition of the initial substrate on the qualitative and quantitative composition of biogas was carried out. As the substrate used: corn silage, poultry manure, pig manure and manure of cattle. Dependences of the volume of biogas and methane content on the type of substrate being processed and the temperature of the process are obtained. It has been established that the greatest amount of biogas is released during fermentation of corn silage and avian manure, and the smallest of pig manure drains. The greatest content of methane is observed when processing bird droppings - 64%, and the smallest of corn silage - 50%.