Yang Jian, Professor/Doctoral Supervisor, School of Materials, Chongqing University, has long been engaged in research in the field of comprehensive utilization of metallurgical resources and environmental protection, head of Chongqing Talent "Hazardous Waste Efficient Incineration and Residue Resource Recovery Innovation and Entrepreneurship Team", deputy director of the National Local Joint Engineering Research Center for Comprehensive Disposal of Hazardous Waste, member of Chongqing Industrial Green Development He is a member of the Expert Group, a member of Metallurgical Environmental Protection Branch Committee of Chinese Society for Metals, a member of Environmental Materials Branch Committee of Chinese Society for Materials Research, a member of Special Committee of Industrial Technology Innovation Strategic Alliance for Flue Gas Pollution Control of Ministry of Science and Technology, a member of Safety and Environmental Protection Branch Committee of Sichuan Society for Metals, and a member of Youth Committee of Solid Waste and Ecological Materials Branch of Chinese Silicate Society.