Zhao Youcai is a professor of environmental engineering at the School of Environmental Science and Engineering, Tongji University, Shanghai, China. He received his bachelor degree from Sichuan University, Chengdu, China (1984) and his Ph.D. from the Institute of Chemical Metallurgy (now Institute of Process Engineering), Chinese Academy of Sciences, Beijing (1989). He completed his post-doctoral research work at Fudan University, Shanghai, China and joined in Tongji University in 1991. He has also worked at Aristotle University, Greece; National University of Singapore, Singapore; Tulane University, USA; and Paul Scherrer Institute, Switzerland, for 4 years as research fellow or visiting professor. He has authored and co-authored 158 publications in peer-reviewed internationally recognized journals, 420 publications in China journals, and 6 English books, and has authored, co-authored, and edited 85 Chinese books. His research interests include treatment of municipal solid wastes, sewage and industrial sludge, hazardous wastes, polluted construction wastes, and industrial wastes.