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Fast and complete removal of the 5-fluorouracil drug from water by electro-Fenton oxidation Ganzenko, Oleksandra Oturan, Nihal Sirés Sadornil, Ignacio Huguenot, David Hullebusch, Eric D. van Esposito, Giovanni Oturan, Mehmet A. Medicaments antineoplàstics Contaminació de l'aigua Descontaminació Antineoplastic agents Water pollution Decontamination Cytostatic drugs are a troublesome class of emerging pollutants in water owing to their potential effects on DNA. Here we studied the removal of 5-fluorouracil from water using the electro-Fenton process. Galvanostatic electrolyses were performed with an undivided laboratory-scale cell equipped with a boron-doped diamond anode and a carbon felt cathode. Results show that the fastest degradation and almost complete mineralization was obtained at a Fe2+ catalyst concentration of 0.2 mM. The absolute rate constant for oxidation of 5-fluorouracil by hydroxyl radicals was 1.52 × 109 M−1 s−1. Oxalic and acetic acids were initially formed as main short-chain aliphatic by-products, then were completely degraded. After 6 h the final solution mainly contained inorganic ions (NH4 +, NO3 − and F−) and less than 10% of residual organic carbon. Hence, electro-Fenton constitutes an interesting alternative to degrade biorefractory drugs. 2019-05-22T09:23:17Z 2019-05-22T09:23:17Z 2018-03 2019-05-22T09:23:17Z info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Versió postprint del document publicat a: https://doi.org/10.1007/s10311-017-0659-6 Environmental Chemistry Letters, 2018, vol. 16, num. 1, p. 281-286 https://doi.org/10.1007/s10311-017-0659-6 (c) Springer Verlag, 2018 info:eu-repo/semantics/openAccess Springer Verlag Articles publicats en revistes (Ciència dels Materials i Química Física)