Dr Xue Xiaofei, Ph.D. in Environmental Engineering, Deputy Engineer of Water Environment Research Institute in Beijing Enterprises Water Group Limited, Professor-level Senior Engineer; Over the years, he has hosted and participated in nearly a hundred municipal water and water environment projects, was responsible for and supported 11 major national and Beijing scientific research projects, won a number of national, provincial and ministerial awards, and also published patents and articles in a dozen; In the field of municipal water supply and drainage design and comprehensive water environment management has accumulated a wealth of frontline work experiences.