Environmental protection refers to the general term for various actions taken by humans to solve real or potential environmental problems, coordinate the relationship between humans and the environment, and ensure the sustainable development of the economy and society. Its methods and methods include engineering and administrative management, legal, economic, and propaganda and education. Regarding the definition of the environmental protection industry, it narrowly refers to the industries that provide equipment and services for environmental pollution control and emission reduction, pollution cleanup, and waste disposal, and divides the environmental protection industry into atmospheric governance, water treatment, and pollution control. Solid waste treatment, among which the three are the leading industries in the environmental protection industry, are also the subjects of our major research.