1. Department of Environmental Engineering, College of Engineering, University of Baghdad, Baghdad, Iraq
2. Department of Chemical Engineering, College of Engineering, University of Baghdad, Baghdad, Iraq
3. Department of Chemical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia
4. International Institute for Halal Research and Training (INHART), International Islamic University Malaysia, Kuala Lumpur, Malaysia
5. Bioenvironmental Engineering Research Center (BERC), Department of Biotechnology Engineering, Faculty of Engineering, International Islamic University Malaysia, Kuala Lumpur, Malaysia