Dr. Xiujin Li,  Professor, Department of Environmental Science and Engineering, Beijing University of Chemical Technology (BUCT).  His main research interest is solid waste treatment and source recovery with an emphasis on the anaerobic conversion of various biomass wastes into bioenergy and bioproducts. He works as a principal investigator for dozens of research projects, including a state high technology R&D project, a state key R&D project and other projects. He published over 300 papers and received 6 awards, including one second-class state award for science and technology progress. He is listed as a global top 2% scientist by Stanford University in 2024. He currently serves as vice director of the Solid Waste Management Subcommittee of China Environmental Sciences and executive director of the China Biogas Association.