FIELD: agriculture, in particular, manufacture of fertilizer from silt, sapropel, sewage water sediment.
SUBSTANCE: method involves preliminarily drying basic product in horizontal rotating drum type furnace; separating foreign matter on sorting machine; grinding; introducing additive; mixing and granulating in extruder press. Drying in horizontal rotating furnace is performed at temperature below 2400C. Additive is potassium gum with emulsifier, which is introduced in an amount providing molding moisture content of sapropel mass of up to 18-24%.
EFFECT: provision for producing of fertilizer with homogeneous granules having stabilized sizes and kept properties of sapropel.
1 dwg
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