1. National Research CentreWater Pollution Research Department Giza Egypt
2. Chemistry Department, Faculty of ScienceAssiut University Assiut Egypt
3. Public Works Engineering Department, Faculty of EngineeringTanta University Tanta City Egypt
4. Department of Civil and Environmental EngineeringTokyo Institute of Technology Tokyo Japan
5. Institute for Water and Wastewater TechnologyDurban University of Technology Durban South Africa