1. Faculty of Engineering & Architecture, Department of Environmental Engineering, Anadolu University, Iki Eylul Campus, 26555, Eskisehir, Turkey. Phone: +90-222-321 35 50 ext. 6400; Fax: +90-222-323 95 01; E-mail: mbanar@anadolu.edu.tr
2. Faculty of Engineering & Architecture, Department of Environmental Engineering, Anadolu University, Iki Eylul Campus, 26555, Eskisehir, Turkey.