1. Associate Professor, Division of Environmental and Water Resources Engineering, School of Civil and Environmental Engineering, Nanyang Technological Univ., Nanyang Ave., Singapore 639798 (corresponding author)..
2. Professor, Dept. of Chemical Engineering, National Taiwan Univ., Taipei, Taiwan 10617.
3. Head and Professor, Division of Environmental and Water Resources Engineering, School of Civil and Environmental Engineering, Nanyang Technological Univ., Nanyang Ave., Singapore 639798.
4. Research Associate, Division of Environmental and Water Resources Engineering, School of Civil and Environmental Engineering, Nanyang Technological Univ., Nanyang Ave., Singapore 639798.
5. Graduate Student, Dept. of Chemical Engineering, National Taiwan Univ., Taipei, Taiwan 10617.