Catalytic wet air oxidation of sulfamethoxazole and tetracycline using platinum-based catalysts at eco-operating conditions

0581419 - ÚCHP 2024 RIV NL eng J - Journal Article
Bourassi, Mahdi - Lafaye, G. - Gombert, B. - Klusoň, Petr - Barbier Jr., J.
Catalytic wet air oxidation of sulfamethoxazole and tetracycline using platinum-based catalysts at eco-operating conditions.
Journal of Cleaner Production. Roč. 429, DEC 1 (2023), č. článku 139453. ISSN 0959-6526. E-ISSN 1879-1786
Grant - others:ERDF(XE) ANR-18-EURE-0010
Institutional support: RVO:67985858
Keywords : noble-metal * oxygen * ceria * pharmaceuticals
OECD category: Chemical process engineering
Impact factor: 11.1, year: 2022
Method of publishing: Open access with time embargo

Conventional wastewater treatment plants (WWTP) are unsuitable for emerging contaminants' elimination. Most of these pollutants persist after the treatment and threaten the receiving environment. Catalytic wet air oxidation (CWAO) is one of the promising solutions to treat these concentrated active molecules. This study reports the catalytic degradation tests on sulfamethoxazole (SM) and tetracycline (TET) using platinum (Pt) supported on cerium oxide (Ce) and mixed cerium and zirconium oxides (CeZr). Pt/CeZr catalyst showed 98 % TET elimi-nation at 50 degrees C under atmospheric pressure (Patm). Furthermore, the test at room conditions reached 92 % removal. Pt/Ce test enabled 77 % SM elimination and reached 45 % SM mineralization. Toxicity assessment confirmed the environmental legibility of the treated solution using CWAO. The outcomes of this study showed an eco-energetic, eco-friendly, and efficient way to treat wastewater loaded with pharmaceutical pollutants.
Permanent Link: https://hdl.handle.net/11104/0349701