METHOD FOR PRODUCING ENVIRONMENTALLY FRIENDLY MINERAL-ORGANIC FERTILISERS WITH METHANE FERMENTATION AT BIOGAS STATIONS Russian patent published in 2018 - IPC C05F3/00 C05F7/00 C02F11/04 

FIELD: agriculture.

SUBSTANCE: method for producing ecologically friendly mineral-organic fertilisers, using methane fermentation performed by the biocoenosis of anaerobic bacteria, includes: 1) cavitation treatment of a liquid fraction of manure or sewage; 2) separately preparing structured and biologically active water; 3) diluting the structured and biologically active water in an anaerobic bioreactor; 4) preparing a solution of biologically active substances (BAS); 5) filling the bioreactor with the solution of BAS with careful stirring; 6) introducing a sowing material into the bioreactor to carry out methane fermentation; 7) carrying out methane fermentation in mesogenic regime; 8) drying the produced biogas; 9) obtaining return process water; 10) directing the first biological filter with sedimented solid particles to a sludge tank for release from sediment directed for making an ecologically friendly organic fertiliser; 11) obtaining physiologically full-fledged drinking water; 12) organic fertiliser composition control for environmental compliance.

EFFECT: invention makes it possible to obtain environmentally friendly mineral-organic fertilisers with the possibility of obtaining physiologically full-fledged drinking water.

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