Afshin Eghbalzaeh, Fereshteh Nourmohammadi Dehbalaei, Mitra Javan, Morteza Eftekhari, Seyad Ehsan Fatemi,

fereshteh nourmohammadi dehbalaei msc. department of civil engineering, razi university, kermanshah, iran, mitra javan assistant professor, department of civil engineering, razi university – water and wastewater research center, razi university, kermanshah, iran afshin eghbalzaeh assistant professor, department of civil engineering, razi university – water and wastewater research center, razi university, kermanshah, iran morteza eftekhari director of water resource institute (wri), tehran, iran seyad ehsan fatemi assistant professor, faculty of agriculture and natural resources water engineering department, razi university, kermanshah, iran