Chen Yang, Professor and Doctoral Supervisor of the College of Resources and Environment, University of Chinese Academy of Sciences; Director of the Professional Committee of Circular Economy and Green Development of the China Association for the Promotion of Science and Technology Industrialization. Focusing on the disposal, resource utilization and secondary pollution control of medical waste, mercury-containing waste, etc., and carrying out research work on technology research and development and management system construction. Presided over more than 40 projects/topics from the Ministry of Science and Technology of China, international convention implementation, environmental protection public welfare, the National Natural Science Foundation, the Chinese Academy of Sciences, etc. Won more than 20 provincial and ministerial-level scientific and technological awards and individual awards. More than 20 invention patents have been authorized. Compiled and issued more than 20 technical policies and standard specifications, and published more than 15 monographs, and published more than 100 papers.