METHOD OF PRODUCING ORGANIC FERTILISER Russian patent published in 2014 - IPC C05F3/00 

FIELD: chemistry.

SUBSTANCE: invention relates to agriculture. The method producing organic fertiliser involves fermentation of a raw product, removing biogas, separation, wherein the raw product used is in form of bird or animal excrement which undergoes preliminary fermentation; after fermentation and removal of biogas, the dense component of the raw product is separated from the fermentation product and the liquid component is mixed with a flocculant; the flocculation product is settled until achieving separation of the solid fraction and the liquid fraction in a ratio from 1:3 to 1:5; the liquid fraction is removed and the remaining product is decanted to moisture content of 40-50%; the liquid component is removed and the decanted mass is mixed with the dense component of the separation product and pressed with an auger device or is first pressed with an auger device and then mixed with the dense component of the separation product that has been pressed with an auger device, wherein at the outlet of the auger device, the product has moisture content of 20-30%, after which the product is heat dried at temperature of 40-60°C to moisture content of 10-15%.

EFFECT: invention reduces power consumption when generating heat energy for thickening a product of fermenting bird and animal excrement, enables to preserve organic and mineral substances in the end product, improves environmental friendliness of the method.

5 cl, 2 tbl