FIELD: chemistry.
SUBSTANCE: method of producing biogas from animal waste includes pretreatment of an organic substrate by bringing moisture content thereof to 90%, followed by crushing the substrate to particle size of 0.5-0.7 cm. An organic catalyst is added, fermentation is carried out in an anaerobic medium and biogas is collected. The organic catalyst used is dairy wastes in amount of 5-10% of the mass of the organic substrate. Fermentation in an anaerobic medium is carried out at temperature of 17-22°C.
EFFECT: invention intensifies the process of methane fermentation of manure to increase output of biogas and increase content of methane therein.
2 cl, 1 dwg
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