Setiadi, F. , Syaichurrozi, I., Ibrahim, A.F. , Tsaqif, F.F. , Satria, M.A. , Fachriza, M.D. and Rahmayetty, R. 2025. Electrocoagulation for Treating Petrochemical Wastewater: The Effect of Initial pHs and Voltages. CHEMICA: Jurnal Teknik Kimia. 12, 3 (Dec. 2025), 207–221. DOI:https://doi.org/10.26555/chemica.v12i3.493.