1. Research Assistant, Dept. of Environmental Engineering and Science, Feng Chia Univ., 100 Wenhwa Rd., Seatwen, Taichung 40724, Taiwan, ROC; formerly, M.S. Student, Dept. of Environmental Engineering and Science, Feng Chia Univ., Taichung 40724, Taiwan, ROC.
2. Professor, Dept. of Environmental Engineering and Science, Feng Chia Univ., 100 Wenhwa Rd., Seatwen, Taichung 40724, Taiwan, ROC (corresponding author).
3. Research Assistant, Dept. of Environmental Engineering and Science, Feng Chia Univ., Taichung 40724, Taiwan, ROC; formerly, M.S. Student, Dept. of Environmental Engineering and Science, Feng Chia Univ., Taichung 40724, Taiwan, ROC.
4. Professor, Institute of Environmental Engineering, National Chiao Tung Univ., 1001 Univ. Rd., Hsinchu 30010, Taiwan, ROC.