With the rapid development of China's economy, people's quality of life continues to improve, and the production of food waste is also increasing. As the content of water and organic matter in kitchen waste is high, it belongs to perishable waste. Once improperly treated, it is easy to cause environmental pollution such as odor and wastewater. Food waste has high oil and salt content and rich organic matter content, but it can be reduced and harmless through scientific treatment, which not only reduces resource waste, but also reduces the cost of waste treatment.

at present Food waste treatment Incineration method, landfill method, feed method and fertilizer method are generally adopted. Among them, the incineration method is only applicable to combustible waste with considerable heat. Due to the high water content of food waste, incineration treatment is adopted. Landfill will increase the consumption of incineration fuel, increase the treatment cost, and easily cause environmental pollution; The landfill method is to bury the waste underground, and use aerobic, facultative anaerobic and anaerobic microorganisms to degrade large molecules into small molecules. Molecular biochemical process, but the high water content of food waste increases the pollution of landfill leachate on soil and groundwater.

At the same time, due to the high oil content of food waste, the methane produced by the landfill is easy to cause spontaneous combustion or explosion. Secondly, food waste is rich in nutrition. Direct landfill will not only cause food waste, but also lead to the proliferation of flies, mice and other organisms. In addition, as the food waste also contains plastic, glass and other refractory waste, it is easy to cause white pollution; The feed is converted to dry treatment. The food waste is first dehydrated, then broken and sorted. According to the weight of metal, plastic, glass, wood, etc, Food waste treatment equipment The manufacturer blows it to different positions through fan.

Nutrients in food waste are collected and recycled, but this treatment method can not effectively remove the ingredients in food waste that are not conducive to fermentation and fertilizer production, such as oil, salt, soy sauce and vinegar. The dehydration efficiency is low, and the sorting effect is low. In the process of storage and transportation, it is easy to corrupt and deteriorate, thereby endangering human health. Chemical fertilizer manufacturing needs desalting and degreasing, and the current technology is not very mature, which limits the promotion.

The harmless treatment of food waste is the first choice to solve the problem of food waste, while the aerobic microbial treatment technology at room temperature is the harmless treatment technology of organic waste.