1. Department of Environmental Engineering, National Chung Hsing University, Taichung 40227, Taiwan
2. Department of Environmental Engineering and Science, Feng Chia University, Taichung 40724, Taiwan
3. Department of Environmental Engineering and Science, Chia Nan University of Pharmacy and Science, Tainan 71710, Taiwan
4. Department of Environmental Engineering, University of Philippines-Diliman, Quezon City 1800, Philippines