Zhaohui Yang, Professor and PhD supervisor of the Cellege of Environmental Science and Engineering, Hunan University. Mainly engaged in research and teaching in environmental biotechnology, solid waste treatment and resource utilization, and water pollution control engineering. He has studied, visited, and cooperated in Japan, France, Germany, etc. Served as reviewer for various environmental journals, reviewer for National Natural Science Foundation of China, scientific and technological plan projects and scientific and technological achievements awards. presided over more than 30 vertical scientific research projects such as the National Natural Science Foundation of China and provincial and municipal science and technology projects; won 1 second prize of the National Science and Technology Progress Award, 2 first prizes of Hunan Province Science and Technology Progress Award, 2 third prizes of Hunan Science and Technology Progress Award, and 1 second prize of National Higher Education Teaching Achievement Award; published more than 100 papers in academic journals; authorized more than 10 national invention patents.