With the development of animal husbandry, the scale of breeding farms has gradually expanded, which has also led to an increase in the amount of manure discharge. How to properly handle these feces and reduce their impact on the environment has become an urgent issue for the sustainable development of the aquaculture industry. The organic fertilizer processing equipment includes fermentation equipment, organic fertilizer granulation equipment, crushing equipment, organic fertilizer mixing equipment, screening equipment, cooling equipment, drying equipment, coating equipment, automatic packaging equipment and other process flows.
Solid manure treatment
For solid manure, composting technology can be used for treatment. By high-temperature composting, the organic matter in the manure is decomposed to kill pathogens and reduce odor. After a period of fermentation, compost products can be used as organic fertilizers for farmland fertilization, achieving resource recycling.
Liquid manure treatment
Liquid manure can be treated using anaerobic fermentation technology. By the decomposition of anaerobic microorganisms, the organic matter in liquid manure is converted into biogas. Biogas can be used as a clean energy source for power generation or heating, reducing the consumption of fossil fuels. Meanwhile, the fermented biogas slurry can be used for irrigation in farmland to improve soil fertility.
Ecological aquaculture model
Promote ecological aquaculture models and reduce the generation of manure through improvements in feeding methods. For example, using a dry manure cleaning method to reduce the amount of wastewater from washing the ground; Reasonably mix feed, improve animal utilization of feed, and reduce feed residue. In addition, the aquaculture and planting industries can be combined to form a circular agriculture model, which converts manure into organic fertilizer and is used for fertilization in farmland to achieve nutrient recycling.
