1. Department of Environmental Engineering, Egypt-Japan University of Science and Technology, Alexandria, Egypt
2. Faculty of Engineering, Department of Civil Engineering, Menoufia University, Menoufia, Egypt
3. Department of Environmental Health, High Institute of Public Health, Alexandria University, Alexandria, Egypt
4. Department of Civil and Environmental Engineering, Tokyo Institute of Technology, Tokyo, Japan
5. Faculty of Engineering, Department of Sanitary Engineering, Alexandria University, Alexandria, Egypt