1. Assistant Professor, Dept. of Civil and Environmental Engineering, Univ. of Connecticut, Storrs, CT 06269 (corresponding author).
2. Director, Waste Management Authority Eastern Macedonia-Thrace, N. Plastira 6, Komotini 69100, Greece.
3. Senior Associate, Schnabel Engineering LLC, 510 East Gay St., West Chester, PA 19380.
4. Lecturer, Chosun Univ., Gwangju 501-759, South Korea.
5. Director, Center for Environmental Systems, Stevens Institute of Technology, Castle Point on Hudson, Hoboken, NJ 07030.