AL-MUQHDADI, H. H.; DEABL, karrar A. Degradation of Toluene in Treatment of Refinery Wastewater by Photocatalytic Oxidation Technology in a Bubble Column Reactor Using ZnO-TiO2 Composite Nanocatalyst and Packing Material. Journal of Petroleum Research and Studies, [S. l.], v. 16, n. 1, p. 202-225, 2026. DOI: 10.52716/jprs.v16i1.1125. Disponível em: https://jprs.gov.iq/index.php/jprs/article/view/1125. Acesso em: 19 mar. 2026.