With people's increasing awareness of environmental protection, environmental pollution and resource waste have attracted great attention, and the treatment of urban domestic waste has also received great attention. Food waste is a lot of waste generated in people's daily life. Usually, people throw food waste directly into the trash can. However, food waste generally contains various components. Food waste has high water content and rich organic matter content, which is particularly prone to bacteria, leading to garbage decay and deterioration, resulting in a pungent odor.

With the progress of science and technology, the technology of reusing food waste through biological treatment has been popularized. In the existing technology, the food waste is generally digested by larvae after being crushed. After being crushed by food waste treatment, the solid and liquid are separated for treatment, and then the solid food waste is digested by biological larvae. However, in the actual use process, it was found that since the solid and liquid wastes need to be treated step by step after the solid-liquid separation, the waste treatment efficiency is low. And, more importantly, for the treatment of large quantities of food waste, after the food waste treatment is crushed, the food waste will still ferment and deteriorate in time to produce toxic gas, and the additional cooler will increase the manufacturing cost and operating cost.