Catalytic ozonation of pharmaceutical wastewater over 3D printed Mn/α-Al2O3 monoliths

INCHAURRONDO, N. S.; FAGES, F.; HUNG HUNG, Y. M. X.; FASCE, L. A.; TALOU, M. H.; DI LUCA, C.

Congreso; 11th WORLD CONGRESS OF CHEMICAL ENGINEERING (WCCE11) - XXX INTERAMERICAN CONGRESS OF CHEMICAL ENGINEERING (IACCHE) - XI ARGENTINIAN CONGRESS OF CHEMICAL ENGINEERING (CAIQ2023) - II IBEROAMERICAN CONGRESS OF CHEMICAL ENGINEERING (CIBIQ2023); 2023

Water pollution by pharmaceuticals (PhACs) represents an emerging environmental problem. While conventional water treatment technologies were not originally designed to remove these types of compounds, oxidation technologies, such as Advanced Oxidation Processes (AOPs) and ozonation, can provide promising treatment alternatives for the removal of PhACs in water. Ozone is a powerful oxidizing agent, but only achieves limited mineralization of organic compounds. So as to intensify the oxidation process and promote less selective removal pathways, ozone has been combined with heterogeneous catalysts. Among active phases, Mn oxides are reported to be one of the most efficient catalysts [1]. Moreover, the screening of solid catalysts is typically performed with powders which difficult its application on a larger scale. To solve this, monolithic catalysts are an attractive alternative to conventional multi-phase reactors. In this work, we aimed to explore the catalytic performance of 3D printed α-Al2O3 monoliths doped with Mn and tested for the catalytic ozonation of diclofenac (DCF) and sulfamethoxazole (SMX).