“Optimization of Electro-Fenton Based Advanced Oxidation Processes for Pre-Treatment of Biogas Production Using Oily Wastewater to Generate Renewable Energy”, IMJAT, vol. 3, no. 7, pp. 46–56, Jul. 2025, Accessed: Jan. 13, 2026. [Online]. Available: https://multijournals.org/index.php/innovative/article/view/3575