METHOD OF PRODUCING ORGANOMINERAL FERTILISER Russian patent published in 2011 - IPC C05F7/00 

FIELD: chemistry.

SUBSTANCE: method of producing organomineral fertiliser involves recycling chemical production wastes - dihydrate phosphogypsum and domestic sewage residues. The mixture of domestic sewage residues and dihydrate phosphogypsum is mixed with wastes from the wood processing industry - sawdust, in ratio of 55:40:5, respectively, and then composted in the spring-summer-early autumn period under high mean daily temperature for 4-5 months, while periodically mixing.

EFFECT: on one hand, the invention enables recycling of wastes, reduces environmental pollution, and on the other - production and use of organomineral compost enriches the soil with organic and mineral colloids.