Yuyou LI, Professor, PhD supervisor, Registered engineer, Anaerobic biology, School of Engineering, Tohoku University, Japan International expert in the field of physical technology. He has been the director of the Department of Civil and Environmental Engineering of Tohoku University, and the director of the Japanese Society of Water Environment.Chairman of the Anaerobic Biological Treatment Research Committee, Director of the Japan Society of Environmental Technology, Environmental Engineering Committee of the Japan Civil Society Chairman and other positions. He is mainly engaged in the theory of anaerobic biological treatment of sewage/waste, energy recovery and sewage nitrogen and phosphorus treatment Research and technology development, including sludge heat treatment anaerobic digestion, two-phase cycle waste fermentation, efficient anaerobic MBR, particles. A number of research results such as sludge type high-efficiency Anammox have been implemented in engineering transformation and application. Has studied English and Chinese in the field of environmental engineering. He has published more than 600 papers in technical journals, including Water Res., Environ Sci Technol., Bioresour Technol. isosci. More than 450 journal papers have been cited more than 20,000 times (Scopus), and more than 20 patents have been applied for President's Education Award of Tohoku University, Paper Award of Environmental Engineering Committee of Japan Civil Society, Paper Award and school of Water Environment Society of Japan Art award and Japan Sewer Association meritorious Service award.