Livestock and poultry manure is a good raw material for organic fertilizer, livestock and poultry manure processing into organic fertilizer, put an end to the adverse impact on the environment, and the manure into available fertilizer resources, while increasing the income of farmers.  
 
A pig produces about 3 kg of manure every day, and 5,000 pigs produce about 5475 tons of manure a year. The 5000 pig factory suggests to choose a small organic fertilizer production line with an annual output of 5,000 tons. The annual income and profit are very considerable.  
 
For a rural pig farm with 5000 pigs, it is necessary to consider whether to use anaerobic treatment mode or aerobic treatment mode before recycling waste.  Both models have their advantages and disadvantages.  Aerobic treatment mode can produce more solid organic fertilizer resources, anaerobic treatment mode can produce biogas resources and liquid organic fertilizer resources.  Anaerobic fermentation needs to use biogas tank, because of more project funds, or aerobic fermentation is more appropriate.  
 
The main factors affecting the fermentation process are water content, c/N ratio, PH value, ventilation rate and temperature.  Moisture content, c/N ratio and PH value can be adjusted in the pre-fermentation process, while temperature and ventilation volume need to be monitored and adjusted in real time in the fermentation process.  When fermentation, the best moisture content is 45%-50%, the best ratio of carbon to nitrogen is 30-35 ∶1, the best pH value is 7.5-8.5, and the best fermentation temperature is 60-65 ℃. The best fermentation equipment can ensure that the fermentation conditions are in the best state.  
 The specific product configuration of the organic fertilizer production line with an annual output of 5000 tons is as follows:  
 
1. Forklift feeding machine: move the fermented pig manure organic fertilizer to the semi-finished product stacking area with forklift, so as to facilitate the processing of the fermented organic fertilizer thrown over by the stacking machine every day.  
 
2. Fertilizer compost turner machine, or groove type compost turner machine does not build groove, directly put the material into a pile, using a crawler dump machine ride cross type dump fermentation.  
 
3. Rotary screening machine: the fermentation of good pig manure organic fertilizer screening, the inside of the large and sundry fiber sorting out, convenient for the next semi-wet material crushing and granulation packaging.  
 
4. Shredder/Crushing machine: the large debris and stones in the screened pig manure organic fertilizer will be separated and crushed, which is beautiful and can ensure the quality of the product.  
 
5. Mixer: screening and grinding of organic fertilizer to mix to ensure the stability of product quality, but also for the production of special fertilizer and a variety of compound fertilizer in the addition of fertilizer and trace elements play a role in mixing.  
 
6. Granulating machine: granulating pig manure materials after crushing and stirring.  
 
7. Dryer, Cooler: the made pig manure organic fertilizer particles drying and cooling.  
 
8. Packaging machine: pig manure organic fertilizer particles for granulation direct packaging sales.  
 
Bio-organic fertilizer can not only meet the needs of local fertilizer, but also provide to meet the needs of the surrounding market.  Biological organic fertilizer is widely used in farmland, fruit trees, flowers, landscaping, high-grade lawn, soil improvement and other fields, and has a good effect.