1. a Institute of Environmental Engineering , National Sun Yat-Sen University , Kaohsiung , Taiwan , Republic of China
2. b Department of Chemical and Material Engineering , National Kaohsiung University of Applied Sciences , Kaohsiung , Taiwan , Republic of China
3. c Sustainable Environment Research Center and Department of Environmental Engineering , National Cheng Kung University , Tainan , Taiwan , Republic of China
4. d Department of Chemical and Materials Engineering , Cheng Shiu University , Kaohsiung , Taiwan , Republic of China