Qing Feng, associate professor, head of the Department of Environmental Engineering, Qilu University of Technology (Shandong Academy of Sciences), China. He received a Ph.D. from Korea Maritime and Ocean University, South Korea. Over the past 10 years, he published over 40 papers for highly ranked peer-reviewed journals and achieved over 10 patents. His areas of expertise are advanced wastewater treatment, biological nutrient removal processes, membrane bioreactors, biogas plants, bioelectrochemical technologies, and energy self-sufficient wastewater treatment. He is an editorial board member of KSCE and a guest editor of Fermentation.