RESEARCH OF THE EFFECT OF PRE-TREATMENT OF THE FERMENTATION MIXTURE ON THE QUA-LITY OF THE METHANE FERMENTATION (for example t. KAMENSKE)

The work to establish that the use of municipal solid waste, such as chicken manure, wastes of the production of sunflower oil, wastes of bakeries, waste water as raw materials for the production of biogas and complex fertilizer is effective, allows of producing from 0,35 to 0,7 dm3 of 1 kg dry substance, have economic value. It was determined, that the most effective method for preparation of raw materials to the fermentation is milling mixing. Size of the particles after milling mixing decreases by 87,5%, while when using a gate-impeller mixer is 27,5%. Deve-loped a general technological scheme for producing a complex fertilizer on the basis of industrial and municipal waste, in which first use for pre-treatment of fermented mixture of milling mixer, that speeds up 2 times the processes of decantation and methane fermentation. Discounted payback period of the developed technology does not exceed 1,2 year.