Comparison of Three different fermentation methods of organic fertilizer raw materials
- Trough aerobic fermentation: This is the most effective method for treating pig manure at present. It is also suitable for the commercial production of pig manure organic fertilizer, which is conducive to standardized production. It uses biological characteristics combined with mechanization technology to completely decompose pig manure with natural microorganisms or inoculated microorganisms and convert organics into organic matter, carbon dioxide and water. This method has a short fermentation time, and the pig manure can be completely fermented and decomposed in about 15 days. And it is easy to achieve factory-scale production, not affected by the weather season, the pollution to the environment is small, which is conducive to the commercial production of pig manure organic fertilizer. Depending on the different equipment, the width of the fermentation tank is generally 3-20 m, the depth is generally 0.8-1.5 m, and the length is between 50-100 m. It can be designed according to the actual situation.
- Strip-type composting is to pile or strip raw mixing materials, which is maintained by a manual or mechanical periodic stacking and natural ventilation to keep the aerobic state in the heap, and is fermented & decomposed under aerobic conditions. The cross section of the crucible can be trapezoidal, irregular quadrilateral or triangular. The strip type composting fermentation is to spread the materials into rows and stack them in the open air or under the scaffold. The material of each row is 2-3 m wide and 1-1.5 m high. The length is determined according to the actual situation. The ventilation pipeline can be installed under the material pile. It is also possible to have no ventilation facilities. The characteristics of pig manure treated by strip type composting are that the material can be placed close to the farmland, and the special plant can be omitted, but the treatment time is relatively long. If you use the open air method, it will be affected by the weather &
- Closed high-temperature fermentation livestock manure organic fertilizer equipment can transport the manure with water content of 80%, through the conveyor belt to the fermenting drum, after high temperature, aerobic fermentation, and directly to about 30% of safe storage moisture.The whole process are completed in the fermentation bin, no odor pollution, thereby reducing environmental pollution during the drying process so as to meet national environmental standards.