Transforming Mud into Gold: A Breakthrough in Vermicompost and Sludge Granulation
The high moisture content (60%-80%), high viscosity, and heavy metal contamination of vermicompost and municipal sludge cause traditional drum granulators to fall into a vicious cycle of "sticking to the walls - clogging - shutdown." Through a three-stage process of low-temperature dehydration, molecular membrane fermentation, and extrusion molding, the moisture content can be reduced from 75% to 28%, achieving stable granulation with a pelletizing rate exceeding 82% and a heavy metal passivation rate of over 65%.
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