PREPARATION OF UNDERWASHING WASTE PRODUCTS OF PIG-BREEDING COMPLEXES AND FARMS FOR AGRICULTURAL APPLICATIONS Russian patent published in 2018 - IPC C02F1/58 C02F11/14 B09B3/00 C05F3/00 C05F5/00 C02F103/20 

FIELD: agriculture.

SUBSTANCE: invention can be used in agriculture for preparation of underwashing waste products of pig-breeding complexes and farms for subsequent application. Method comprises processing the underwashing waste products of pig-breeding complexes and farms with a fired defecate at a dose of 50–200 mg/dm³, the pH value ranges from 7.5 to 8.5. After processing, the resulting mixture is left to stand and the precipitate is used as an organomineral fertilizer.

EFFECT: method ensures disposal of the underwashing waste products for irrigation and fertilization of agricultural lands, reduced reagent treatment cost, acceleration of the settling of the liquid waste and reagent mixture, increased fertilizer value of the resulting sludge as a result of fractionation and disinfection of the underwashing waste products and exclusion of discharge of excess sewage into reservoirs.

1 cl, 1 ex, 2 tbl