Associate professor Dr. Huajun Feng, was born in Zhoushan Island of Zhejiang Province in 1980. In 2008, he obtained his Ph.D. degree from Zhejiang University，major in Environmental Engineering. After graduation from the university, he began his job in Zhejiang Gongshang University, where he acted as the vice director of environmental engineering department. His research interests include: environmental biotechnology and biological waste treatment.