Description


Organic Fertilizer Production Process
Applicable Raw Materials:
– Livestock and poultry manure (chicken, duck, pig, cow, sheep)
– Straw
– Biogas residue
– Urban sludge and garbage
– Sugar mill and paper mill sludge
– Mushroom sticks, furfural residue, palm oil fiber
– Seaweed, soybean meal, and other organic wastes
1.Raw Material Pretreatment
Purpose: Adjust moisture content and carbon-to-nitrogen ratio, and add bacterial strains to accelerate fermentation.
Process: Organic solids are mixed with straw powder to achieve a moisture content of 55-60%. A fermentation agent is added, and the mixture is transferred to fermentation tanks.
2. Organic Raw Material Fermentation
-Purpose: Reduce volatile substances, odors, kill pathogens, and decompose organic materials to release essential nutrients.
Process: Aerobic composting is carried out in fermentation tanks using turning machines to ensure proper aeration. The composting cycle lasts 10-20 days, reaching temperatures of 60-70°C. The compost is then moved to the aging workshop.
3. Aging of Fermented Materials
Purpose: Further decompose and stabilize organic matter to prepare it for subsequent processing.
Process:
The composted material is aged to complete the decomposition of large molecular compounds.
4. Fine Processing
Process: After aging, the material is conveyed to a mixer, then to a crusher. The crushed material is screened, with the powder sent to the finished product warehouse and the granulated material prepared for further processing.