1. The Joint Graduate School of Energy and Environment, King Mongkut's University of Technology Thonburi, 91 Pracha Uthit Road, Bangmod, Tungkru, Bangkok 10140, Thailand E-mail: shabbir_g@jgsee.kmutt.ac.th
2. Water Engineering and Management Program, School of Civil Engineering, Asian Institute of Technology, PO Box 4, Klong Luang, Pathumthani 12120, Thailand E-mail: msbabel@ait.ac.th
3. Environmental Technology Program, Sirindhorn International Institute of Technology, Thammasat University, Rangsit Campus, PO Box 22, Klong Luang, Pathumthani 12121, Thailand E-mail: sandhya@siit.tu.ac.th