METHOD OF BIOLOGICALLY PROCESSING BIRD DUNG Russian patent published in 2008 - IPC C05F11/08 C12N1/20 

FIELD: biotechnological production of fertilizers.

SUBSTANCE: method envisages mixing bird dung with moisture-absorbing material followed by aerobic fermentation of the mixture in presence of microorganisms. Process is carried out at stirring until temperature of fermentation mixture spontaneously drops to 25-30°C, said microorganisms being consortium of strains: Bacillus subtilis B-168, Bacillus mycoides B-691, Bacillus mycoides B-46, Streptococcus thermophilus B-9-7, Candida tropicalis Y-1520, Candida utilis Y-2441. Preferable implementation of the method is when above-listed strains are used in equal proportions and in amount of 1•10⁸-1•10⁹ cells in 1 mL per 1 ton bird dung.

EFFECT: enabled production of less expensive high-efficiency fertilizer due to reduced processing expenses because of simplified technology and diminished use of consortium of strains.

2 cl