1. Chemical Engineering Department University of Technology Baghdad Iraq
2. Computer Engineering Technology Department Al_Nisour University College Baghdad Iraq
3. Department of Mechanical and Manufacturing Engineering, Faculty of Engineering and Built Environment Universiti Kebangsaan Malaysia, UKM Bangi Bangi Selangor Malaysia
4. Faculty of Environmental Management Prince of Songkla University Songkhla Thailand
5. Environmental Assessment and Technology for Hazardous Waste Management Research Centre, Faculty of Environmental Management Prince of Songkla University Songkhla Thailand