The chemical industry occupies an important position in the national economy of various countries and is the basic and pillar industry of many countries. The development speed and scale of the chemical industry have a direct impact on all sectors of the social economy. At present, the annual output value of the world's chemical products has exceeded 150 billion US dollars. Due to the variety of categories, complex processes and diverse products in the chemical industry, there are many types, large quantities and high toxicity of pollutants emitted in production, so the chemical industry is a major polluted. 

 At the same time, chemical products may produce a large number of toxic substances in various links such as processing, storage, use and waste treatment, affecting the ecological environment and endangering human health. The development of the chemical industry on the path of sustainable development is of great practical significance to the development of human economy and society.