The extraction of olive pomace oil is a significant aspect of the Mediterranean edible oil industry; however, the wastewater generated contains pollutants that can harm the environment and public health. The aim of this study was to suggest a treatment method for a genuine wastewater from an olive oil pomace extraction industry by integrating the Fenton's process with coagulation. Al2(SO4)3) was applied for effluent coagulation at concentrations of 1000-15000 mg L-1 at pH 7. The optimal pH and effect of the flocculants were also investigated. The optimal condition was defined as a dosage of 9000 mg L-1 of Al2(SO4)3 at pH 7, combined with a dosage of 50 mg L-1 of Rifloc F45. In the Fenton process, the effect of the iron ions (0.5 to 7 g L-1) and the dosage of H2O2 (1.5 20 g L-1) were evaluated at three different pH values (2.5, 3, and 3.5). The optimal conditions were defined as H2O2 20 g L-1 and Fe2+ 7 g L-1 at pH 3.5, and 44% COD and 82% TPh removal was achieved. Thus, coagulation followed by Fenton's process appears to be a practical solution for treating such effluents and should be considered an attractive option for full-scale OOEIW treatment.