The roller extrusion granulator has been widely used in the organic fertilizer production industry due to its unique processing principle and wide adaptability to raw materials. Organic fertilizer granulators can use various organic materials as raw materials to process organic fertilizers, including but not limited to the following categories:
Agricultural Waste
Crop straw: such as corn stalks, rice straw, wheat straw, legume crop stems, etc.
Agricultural product processing by-products: such as sugarcane bagasse, distiller’s grains, fruit peels, shells, etc. from sugar mills.
Fruit and vegetable residues: market waste, food processing plant residues, etc.
livestock manure
Livestock manure: cow manure, pig manure, chicken manure, sheep manure, etc. These manures contain abundant organic matter and nutrients such as nitrogen, phosphorus, and potassium.
Poultry feathers: After pre-treatment such as defatting and crushing, they can also be used as raw materials for organic fertilizers.
Industrial organic by-products
Sludge: Biological sludge from urban sewage treatment plants, which can be used as organic fertilizer raw materials after disinfection treatment.
Biomass waste: residues from the biomass energy industry, such as sawdust, sawdust, rice husk charcoal, etc.
Solid residues from food industry wastewater treatment, such as beer yeast, soy sauce residue, etc.
Forestry waste
Branches and leaves: Branches and leaves trimmed from landscaping can be used as organic fertilizer raw materials after crushing and fermentation.
Wood chips and bark: scraps from the wood processing industry, suitable as base materials for organic fertilizers.
Urban household waste
Kitchen waste: Food residues generated in household kitchens and the catering industry, which can be converted into organic fertilizers after anaerobic digestion or composting treatment.
Garden waste: Cut lawns, fallen leaves, etc., can also be converted into organic fertilizers after appropriate treatment.
Special raw materials
Seaweed and marine debris: rich in minerals and other trace elements, suitable for organic fertilizer production in coastal areas.
Earthworm castings: Organic waste digested by earthworms, rich in microorganisms and nutrients, is a very high-quality organic fertilizer raw material.
The roller extrusion granulator can compress various raw materials mentioned above into sturdy particles through strong extrusion force, which is not only convenient for storage and transportation, but also helps to slowly release nutrients, suitable for various types of crops. However, it is worth noting that before using any raw materials, necessary pretreatment such as drying, crushing, and impurity removal is required to ensure the quality and safety of the final product. In addition, reasonable raw material matching and formula adjustment are also very important to meet the special needs of different soil conditions and crop types.