The process of making pig manure organic fertilizer usually includes multiple steps, from raw material pretreatment to final product packaging, each of which is crucial. The following are some common production processes for pig manure organic fertilizer:
1. Raw material pretreatment
Collection and screening: Collect fresh or stored pig manure, and remove large impurities and non organic substances such as stones and plastics through screening.
Adjusting moisture content: Pig manure usually has a high moisture content and needs to be adjusted by adding desiccants or natural drying, with an ideal range of 40% -60%.
2. Composting fermentation
Mixing raw materials: Mix pig manure with a certain proportion of auxiliary materials (such as straw, sawdust, rice husk, etc.). The purpose of the auxiliary materials is to provide a carbon source, adjust the C/N ratio, and promote fermentation.
Adding microbial agents: Adding fermentation microbial agents, including aerobic bacteria, fungi, etc., can accelerate the decomposition of pig manure and improve fermentation efficiency.
Composting fermentation: The mixed raw materials are stacked into compost piles, which are regularly turned over by a self-propelled composting machine or other turning equipment to ensure oxygen supply and promote fermentation. The temperature during the fermentation process should be controlled at 50-65 ° C to kill pathogens and parasite eggs.
.jpg)
3. Post processing
Screening: After fermentation is completed, undecomposed impurities and large particles are removed by a screening machine to improve the uniformity of organic fertilizer.
Crushing: Crushing the screened organic fertilizer to achieve the desired particle size for subsequent granulation or direct use.
Drying: Remove excess moisture through a dryer for easy storage and transportation, while preventing fertilizer clumping.
4. Granulation and packaging
Granulation: According to the needs, the dried organic fertilizer is granulated into particles through the organic fertilizer granulation mechanism to improve the appearance and convenience of the product.
Packaging: The organic fertilizer after granulation is packaged in common forms such as bags and barrels to ensure sealing and prevent moisture and contamination.
5. Quality inspection
Nutritional component testing: Testing the nutritional components of organic fertilizers, including nitrogen, phosphorus, potassium content, as well as indicators such as organic matter and pH value, to ensure product quality.
Safety testing: Detecting the content of harmful substances such as heavy metals and pathogens in organic fertilizers to ensure product safety.
6. Storage and sales
Storage: Store the packaged organic fertilizer in a well ventilated and dry place, avoiding direct sunlight and soaking in rainwater.
Sales: Sell organic fertilizers to farmers, farms, or agricultural companies through various channels to improve soil quality and promote crop growth.
The above process is the basic steps for making pig manure organic fertilizer, and the specific operation may be adjusted according to raw material conditions, equipment configuration, and market requirements. Fermentation is the core process in the entire organic fertilizer production line. Through effective fermentation treatment, the organic matter in pig manure is decomposed and converted into beneficial nutrients for plant growth, while reducing pathogens and odors, improving the safety and market acceptance of fertilizers.
