FIELD: agriculture.
SUBSTANCE: invention relates to processing alcohol production wastes. Disclosed is a method for processing distillery stillage to obtain organo-mineral fertilizer and return purified water in the manufacturing process. Method comprises coagulation and further extraction of precipitated product. For coagulation stillage is put into a storage container with two metal frame mixers, to 90 % of the container volume, phosphogypsum is introduced in the amount of 10-25 kg/ton of distillery stillage. Separation of liquid and solid phases of the flocculated stillage is performed by means of a frame filter press with further final air drying to the humidity level of 13-15 %.
EFFECT: invention provides eliminating the step of stillage neutralization by lime, as well as obtaining a highly efficient organo-mineral fertilizer with ameliorative effect.
1 cl, 1 dwg
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