Ozone/H2O2 Performance on the Degradation of Sulfamethoxazole |
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| Authors: | Rui C Martins Renato F Dantas Carme Sans Santiago Esplugas Rosa M Quinta-Ferreira |
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| Affiliation: | 1. Department of Chemical Engineering, Chemical Engineering Processes and Forest Products Research Center—CIEPQPF, University of Coimbra, Coimbra 3030-790, Portugal;2. School of Technology, University of Campinas – UNICAMP Paschoal Marmo, 1888, Limeira 13484-332, Brazil;3. Department d’Enginveria Quimica, Universidad de Barcelona, Barcelona 08028, Spain |
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| Abstract: | This work aims to analyze the contribution of H2O2 on ozonation of Sulfamethoxazole (SMX). A single ozonation was able to totally remove SMX. TOC and COD depletion rates after a transferred ozone dose of 60 mg/L was related to the formation and decomposition of H2O2. An increase on O3 gas inlet concentration from 10 g/m3 to 20 g/m3 improved COD abatement from 11% to 36%. When the presence of H2O2 at the beginning of ozonation was tested, it was verified that COD and TOC degradation were enhanced, attaining maximum values of 76% and 32%, respectively, when compared with 35% and 15% reached in a single ozonation. |
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| Keywords: | Ozone AOP Emerging Contaminants Hydrogen Peroxide Perozonation Sulfamethoxazole |
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