The rapid development of pig farming has brought progress to China’s consumer market, but also brought environmental pollution issues. Pig manure pollution is a common source of pollution, which can reduce the quality of air and water sources and pose potential biosafety hazards. Methods such as fermenting biogas, making organic fertilizer, cultivating saprophytic animals, and planting edible fungi can reuse pig manure, which not only can better treat the manure, but also bring new benefits to the farm.
The cost of processing organic fertilizer is low. The important processes for organic fertilizer equipment processing are fermentation and granulation. Fermentation affects the quality of the entire production of organic fertilizer, and the quality of granulation directly affects the sales of organic fertilizer in the later stage. The process steps send livestock manure, ingredients, bacterial agents, etc. into a mixing mixer according to the specified proportion, and mix them to make them uniform. They are transported to a fermentation bed (trough type, bar type, or tank type) through a conveyor or forklift truck, After sufficient fermentation in the fermentation bed, it is crushed and loosened by a pulverizer, and then sent to a stacking plant for secondary aging to increase activity. After separation and impurity removal, it is processed into organic fertilizer through processes such as deep processing and granulation.
Generally, the raw material of organic fertilizer is mainly livestock manure produced by the livestock breeding industry. Firstly, the development situation of the aquaculture industry is very good, with a large number of large-scale farms, ensuring the supply of raw materials. Secondly, livestock and poultry manure is convenient for transportation and centralized treatment. Materials with low moisture content can be directly transported, while materials with high moisture content can be dehydrated by a solid-liquid separator before transportation. These are all advantages of manure organic fertilizer.
Organic fertilizer equipment has low production cost, sufficient fertility, simple and feasible methods, and can play a role in killing pathogenic pathogens in feces, which is relatively popular among aquaculture enterprises. The production process of organic fertilizer is actually a microbial fermentation process. Due to the large amount of nutrients contained in feces, these substances can provide basic carbon sources, nitrogen sources, growth factors, water, mineral ions, and other nutrients for microbial reproduction. The biological heat generated during the fermentation process can achieve a temperature of 80 ℃ and maintain it for several days, which can kill most insect eggs and pathogenic microorganisms without causing harm to the environment, The fermented feces are free of volatile harmful gases and pose no harm to the environment. The sale of organic fertilizer equipment also brings new income to the breeding farm, greatly improving the breeding efficiency.