Bala, M.S., Mohd Azoddein, A.A., Asdash, M.I. and Alshwal, B. 2018. Comparative Study For Activation Of Hydrogen Peroxide By Chemical Reagents (Fe2+, Al3+) To Reduce Chemical Oxygen Demand In Petrochemical Wastewater. Journal of Engineering and Technology (JET). 9, 2 (Dec. 2018), 97–110.