METHOD OF OBTAINING BIODEGRITATION FROM BIRD LITTER Russian patent published in 2017 - IPC C05F3/00 

FIELD: chemistry.

SUBSTANCE: method of obtaining biofertilizer from bird litter includes preliminary homogenization of bird litter followed by a hydrolysis step in the presence of an alkaline solution and an anaerobic fermentation step in the temperature range 37-38°C in the mesophilic regime. The hydrolysis step is carried out in the temperature range 36-38°C, humidity 88-89 wt %. The anaerobic fermentation step is carried out at a moisture content of 90-92 wt %. Next, the separation of the product obtained after the anaerobic fermentation step with separation of the desired product with a moisture content of 74-77 wt % is carried out. And an aqueous solution containing 3.0-4.0 grams/liter of dissolved ammonium. The separated aqueous solution is used in the hydrolysis step as an alkaline solution.

EFFECT: obtaining biofertilizer with a higher content of valuable humic acids and simplifying the technological process.

4 cl, 1 tbl, 9 ex