1. King Khalid University, College of Engineering, Chemical Engineering Department, Abha 61411 P.O. Box 394, Saudi Arabia
2. Gabes University, Higher Institute of Applied Biology of Medenine, Street El Jorf - km 22.5, Medenine 4119, Tunisia
3. Gabes University, Superior Institute of Technological Studies of Medenine, Street El Jorf - km 22.5, Medenine 4119, Tunisia