Yung-Tse Hung, Ph.D., P.E., DEE, F-ASCE, has been Professor of Civil Engineering at Cleveland State University, Cleveland, Ohio, USA, since 1981. He is a Fellow of the American Society of Civil Engineers. He has taught at 16 universities in eight countries. His primary research interests and publications have involved biological wastewater treatment, industrial water pollution control and industrial waste treatment, and municipal wastewater treatment. Prof. Hung has over 400 publications and presentations on water and wastewater treatment. He received his BSCE and MSCE degrees from National Cheng-Kung University, Taiwan, and his Ph.D. degree from the University of Texas at Austin, The USA. He is Editor-in-Chief of the International Journal of Environment and Waste Management (IJEWM), Editor-in-Chief of International Journal of Environmental Engineering (IJEE) and Editor-in-Chief of International Journal of Environmental Pollution Control and Management (IJEPCM).