Professor, Center for Material Cycles and Waste Management Research, National Institute for Environmental Studies


Dr. Kai-Qin XU is a Section Leader in Environmental Restoration and Conservation Technology Section, Center for Material Recycle and Waste Management Research, National Institute for Environmental Studies (NIES), Japan. He received a B.Sc in Hydro-power Engineering from the Wuhan University of Hydraulic and Electric Engineering (Now Wuhan University), Wuhan, China in 1983 and a M.S and a Ph.D. in Civil Engineering (Water supply and water treatment) from Tohoku University, Sendai, Japan in 1987 and 1990, respectively.

After graduation, Dr. Xu worked in an environmental consultant company as a researcher for one and half years in Research Group of Environmental Planning and Assessment, at METOCEAN ENVIRONMENT INC. (former Shin Nippon Meteorologic and Oceanographic Consultant)ï¼Å’Tokyo, Japan, where he conducted research projects on water quality simulation and assessment in lakes and reservoirs. He then held a position as an Assistant Professor from 1992 to 1995 and an Associate Professor from 1996 to 1997 at the Department of Civil Engineering of Tohoku University. Dr. Xu joined the Water and Soil Environmental Division of NIES, Tsukuba, Japan in September 1997 as a Senior Research Scientist. He was a visiting Research Scientist in the Department of Earth and Environmental Engineering at the Columbia University, USA from April 2005 to March 2006. Since October 2008, he has been a section leader in NIES, Japan.

Research Interest

Dr. Xu is interested in the development of water and wastewater treatment technology, water resource systems planning and management, the application of remote sensing technology to watershed management, energy recovery from organic waste (biomass), and the seasonal streamflow prediction based on the climatic indices in the large rivers. He is now continuing his research on watershed environmental management, and investigating individual environmental technologies, such as decentralized wastewater treatment technologies, including bio-eco technology to improve and restore the water environment.