Prof. Dr. Weiying Li is a Professor at the Department of Municipal Engineering, College of Environmental Science and Engineering, Tongji University. She received her Master's and PhD degrees at the Department of Municipal Engineering,Tongji University. From 2002 to 2004, she served as a Postdoctoral fellow at Gifu University, Japan. Then, she joined Tongji University as an Associate professor. Her research interests include 1. Research on theory and technology of drinking water safety guarantee; 2. Research on the theory and technology of water treatment by membrane method (including metallic membrane); 3. Research on evaluation and control technology of water quality bio-safety in drinking water distribution system.