Toh, Y. P.Bashir, M. J. K.Guo, X.Wong, L. P.Ozturk, D.Amr, S. S. A.Lim, J. W.2025-05-102025-05-1020231735-14721735-263010.1007/s13762-023-04824-w2-s2.0-85148472084https://doi.org/10.1007/s13762-023-04824-whttps://hdl.handle.net/20.500.14720/1052Lim, Jun-Wei/0000-0003-0158-8822; Jk Bashir, Mohammed/0000-0002-3086-0568In this research, electrocoagulation-intensified peroxidation using an aluminum electrode was studied as a post-treatment method for poultry slaughterhouse wastewater (SWW) with 4 operational variables (pH, current density, contact time, and H2O2 dosage). Optimization was carried out using response surface methodology. Analysis of variance was used to analyze the experimental data, and a second-order model was created to test the effects of process parameters on treatment performance. The optimum conditions were chosen as follows: pH 5.83, 0.18 g/L H2O2 dosage, 58.60 min contact time, and current density of 4.21 mA/cm(2). The compatibility of the predicted optimum conditions has been verified by experimental data. As a result of the experiments performed under optimum conditions, COD, TSS, and color removals were found to be 97.89%, 99.31%, and 98.56%, respectively. The difference between experimental and predicted values was found to be less than 0.86%. The final treated effluent met the discharge standards determined by the World Bank, EU, US, and Malaysian Department of Environment. Under optimum conditions, the cost of treating 1 cubic meter of SWW was calculated as 3.02 MYR ($ 0.68).eninfo:eu-repo/semantics/closedAccessSlaughterhouse WastewaterElectrocoagulationOrganic PollutantsPost-TreatmentOptimizationArticleQ3Q2WOS:000936508200002