According to the statistics of the China Urban Environmental Health Association, China produces nearly 1 billion tons of garbage every year, including about 400 million tons of household waste, about 500 million tons of construction waste, and about 10 million tons of kitchen waste. Quantity is one of the best in the world. With the acceleration of urbanization in China and the improvement of people's living standards, urban household waste is still increasing at a rate of about 5-8% per year. The garbage siege is ringing the alarm for Chinese cities.