What are the differences in pre-treatment for chicken manure, cow manure, and pig manure before granulation?
The core difference in pre-treatment for chicken manure, cow manure, and pig manure before granulation lies not in the name “manure,” but in three physical indicators: moisture content, viscosity, and fiber content. Chicken manure is highly viscous and has a high moisture content, so the focus of pre-treatment is dehydration and anti-sticking. Cow manure has coarse fibers and low viscosity, so the focus of pre-treatment is matching the shearing and granulation methods. Pig manure falls in between, and its pre-treatment is relatively lenient; disc granulation can achieve good cost-effectiveness. The difference in raw material viscosity directly determines the dehydration equipment, crushing method, granulator type, and whether drying is required.
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