Hee-Deung Park is an associate professor at the School of Civil, Environmental and Architectural Engineering in Korea University, Seoul. He received his PhD in environmental engineering from the University of Wisconsin–Madison and conducted postdoctoral research at Stanford University. Prior to joining the faculty at Korea University, he worked at Kolon Engineering and Construction. Dr. Park’s research interests involve identifying microbial community compositions in environmental engineering settings such as activated sludge reactors, anaerobic digesters, and membrane filters, and exploring the correlations between community information and the function of environmental engineering systems. In-Soung Chang is a professor in the Department of Environmental Engineering at Hoseo University in South Korea. He received his PhD from the Department of Chemical Technology in Seoul National University and conducted postdoctoral research at Cranfield University in the UK. Dr. Chang’s current research interest focus on water and wastewater treatment using high voltage impulses technique. Kwang-Jin Lee is a PhD candidate at the School of Civil, Environmental and Architectural Engineering in Korea University, where he also received his MS and BS in physical chemistry. He has worked at Kolon Industries, Inc. as a researcher. He developed Cleanfil®-S Series of modules, which are now widely used in the environmental market. His research interests include the fabrication of nano-scaled material based membranes such as carbon nanotubes and analyzing the basic mechanisms of membrane performance.