Xianlai ZengXianlai Zeng studied e-waste and urban mining as associate professor at Tsinghua University, obtaining a B.Sc. in 2002, an M.Sc. in 2005, and a Ph.D. in environmental science & engineering in 2014. He ever worked four years as lecturer at Environmentl Management College of China, and two years as a postdoctoral research fellow in Tsinghua University, and technical advisor in United Nations Development Programme. He ever worked as visiting staff in Coventry University and Macau University. He has published over 50 articles, patents, and books in waste recycling and management. He chaired or attended 15 projects related to waste recycling and circular economy. Read More Read Less