my country introduced the production of kitchen waste, lacked a scientific and reasonable scale of treatment plants, and similar waste oil and garbage pig problems were banned many times.

Treatment method: mixed domestic waste landfill feed anaerobic digestion. There are problems such as high water content, much leachate, difficult treatment, serious secondary pollution, much organic matter, strong odor, large environmental impact, and more land resources. Anaerobic digestion: high organic content, high anaerobic digestion, high energy-saving efficiency, high water content, and wet anaerobic digestion are very convenient. Digestible wetland sludge can be used as fertilizer and is rich in resources. Anaerobic digestion and high-temperature sterilization can kill harmful bacteria and achieve harmless domestic waste treatment.

The kitchen has a high organic matter content, high nutrient content, and a reasonable carbon-nitrogen ratio. It is an excellent raw material suitable for microbial growth and metabolism.

The basic technologies of domestic waste treatment projects can be divided into two categories: anaerobic fermentation composting and aerobic fermentation digestion. Among them, high-temperature aerobic composting is a commonly used method that can complete the maturation process of material composting in a short time.

The high temperature generated during the composting process can significantly inhibit harmful bacteria. Food waste can also be treated by anaerobic fermentation. Anaerobic fermentation can effectively reduce the concentration of organic matter and produce biogas for utilization. However, the treatment cycle of anaerobic fermentation is longer than that of aerobic composting, which usually takes 2-3 weeks before the reaction is completely completed.

During the composting process, food waste will change the necessary garbage timing, increase food waste and bacteria, and this bacteria will contact in a better living environment, increasing the fermentation speed.

In addition, food waste has a high water content, and many factors of organic matter must be controlled. Too high a water content will reduce the volume load of the reactor. Methane production in domestic waste treatment projects is inhibited, and the production of high-alkalinity methanogenic bacteria is inhibited, so the pH value must be properly adjusted. After food waste is composted, the fertilizer effect is fast, and the final product, fertilizer, stable, small, and less pathogens.