TECHNOLOGICAL FEATURES OF ORGANIC WASTE PROCESSING TO OBTAIN BIOHUMUS

Abstract

This article highlights the technology of processing organic waste in order to obtain biohumus. The varietal composition of urban organic waste has been studied. The technology of preparation of raw materials for obtaining a high-quality substrate for further processing, which provides for the purification of the total mass of organic waste from particles of plastic, glass metal, etc., is considered. An experiment was carried out to determine the optimal composition of the substrate for «California» worms (E. Andrei), which have a high productivity. The optimal parameters of humidity and ambient temperature for the vital activity of worms are considered. In the experiment, three experimental groups were formed, which differed in the composition of organic waste. All three groups contained 40% food waste; 10% – branches, wood cuttings, grass; 10% – tea bags, coffee waste, paper and cardboard; 10% soil and 30% animal waste. In each group, animal waste was different: cattle manure, bird droppings and horse manure. The effectiveness of the varietal composition of the substrate was assessed by the increase in the productivity of «California» worms. The highest results were shown by the substrate in which cattle manure was introduced, the growth of worms in which increased by 6.5 times, the lowest results were in a mixture with the addition of bird droppings – by 5.1.