Prof. Yung-Tse Hung has been a Professor of Civil Engineering at Cleveland State University, Cleveland, Ohio, USA, since 1981. He has his BS and MS in Civil Engineering from Cheng Kung University in Taiwan, and his Ph.D. in Environmental Engineering from the University of Texas at Austin in 1970. He has been on faculty and taught at 16 universities in 8 countries. His primary research interests are in biological wastewater treatment, industrial water pollution control and industrial waste treatment, and municipal wastewater treatment. He has about 10 books, 450 reports and journal publications, and conference presentations.