There are many kinds of solid wastes, which can be divided into general wastes and hazardous wastes according to their pollution characteristics, and urban solid wastes, industrial solid wastes and agricultural solid wastes according to their sources. Municipal solid waste refers to the solid waste generated in the process of residents' living, commercial activities, municipal construction and maintenance, office work, etc., which is generally divided into: domestic waste, construction waste, commercial solid waste and fecesIndustrial solid waste refers to solid waste generated in industrial production activities, mainly including: metallurgical solid waste, energy solid waste, petrochemical solid waste, mining solid waste, light industrial solid waste and other industrial solid waste. Agricultural solid waste refers to the waste generated from agricultural production, livestock and poultry breeding, and processing of agricultural and sideline products, such as crop straw, agricultural film, and livestock and poultry excretaWith the rapid development of social economy and modern industry, the treatment of an increasing number of wastes, especially toxic and hazardous wastes, has become a major headache for governments all over the world. Hazardous waste is toxic, explosive, corrosive, chemical reactive, infectious, radioactive and other harmful characteristics, which pollutes the environment and can last for a long time. Due to various technical and economic reasons for hazardous waste treatment, China currently adopts direct landfill or stacking methods for hazardous waste treatment, which not only occupies a lot of land, but also seriously pollutes soil, groundwater and atmosphere, threatens people's health, destroys the surrounding environment, and poses long-term harm to our future generations.