Compared with other industrial pollution, livestock and poultry manure, including pig manure, is a controllable pollution. Using biological fermentation technology to process pig manure organic fertilizer is an effective way for harmless treatment and resource utilization of pig manure. The composition of pig manure is very complex, mainly including cellulose, hemicellulose, lignin, protein, amino acids, organic acids, enzymes and various inorganic salts. Due to the diversity of feeds, the nutrient content in pig manure is often inconsistent. The nitrogen content is twice as high as that of cow manure, and the phosphorus and potassium content is also higher than that of cow manure and horse manure, but the calcium and magnesium content is lower than that of other manure. Pig manure has a low carbon / nitrogen ratio and contains a large number of ammoniated bacteria, which is easy to rot. the application of pig manure can increase the water retention of soil and play a certain role in drought resistance and moisture conservation.

The pig manure organic fertilizer dumper is generally carried out in the closed fermentation workshop. By stacking the organic waste raw materials in the front of the fermentation tank, using the large dumper to move the materials, and arranging the aeration system at the bottom of the fermentation tank, the materials can be decomposed quickly. When selecting the dumper, it is necessary to select the dumper products with the characteristics of large treatment capacity, short fermentation cycle, high degree of automation, odor collection and treatment, high civil engineering investment cost, which are suitable for the centralized treatment of waste from large-scale farms.

The pig, cattle and sheep manure organic fertilizer fermentation equipment is mainly an integrated sludge treatment equipment for high-temperature aerobic fermentation of livestock and poultry manure, kitchen waste, and other wastes, and biological decomposition of organic matter in wastes by using microbial activity, so as to achieve harmless, stable, reduced and resource utilization.