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http://hdl.handle.net/2445/196358
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DC Field | Value | Language |
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dc.contributor.author | Murrieta, Maria F. | - |
dc.contributor.author | Brillas, Enric | - |
dc.contributor.author | Nava, José L. | - |
dc.contributor.author | Sirés Sadornil, Ignacio | - |
dc.date.accessioned | 2023-03-31T16:50:15Z | - |
dc.date.available | 2023-03-31T16:50:15Z | - |
dc.date.issued | 2022-12-14 | - |
dc.identifier.issn | 1383-5866 | - |
dc.identifier.uri | http://hdl.handle.net/2445/196358 | - |
dc.description.abstract | The degradation and mineralization of the drug norfloxacin (NFX) has been assessed in a model solution, containing 15 mM NaCl +45 mM Na2SO4 at pH 3.0, using a flow plant with an FM01-LC filter-press reactor equipped with a Ti|Ir-Sn-Ru oxides anode to electrogenerate HClO from Cl- oxidation and a stainless-steel cathode. Unexpectedly, anodic oxidation with active chlorine (AO-HClO) outperformed electro-Fenton (EF-HClO), photoelectro-Fenton (PEF-HClO) and solar photoelectro-Fenton (SPEF-HClO) due to: (i) the formation of refractory complexes between iron ions and carboxyl group of NFX, and (ii) the conversion of HClO into less effective ¿OH upon its Fenton-like reaction with added Fe2+ catalyst. SPEF-HClO was superior among Fentonbased treatments because the ¿OH concentration was largely increased by the photolysis of Fe(III) species. At an initial NFX concentration in the range 0.103-0.146 mM, the optimum conditions for SPEF-HClO were 0.40 mM Fe2+ and 15 mA cm 2. A BDD anode allowed a higher production of ¿OH, accelerating the degradation and mineralization, with similar energy requirements as compared to trials with Ti|Ir-Sn-Ru oxides anode. The SPEFHClO process in urban wastewater was less powerful because of the parallel oxidation of natural organic matter. HClO, Fe2+ and Fetotal were quantified in both water matrices. The initial degradation sequence for NFX, proposed from 10 primary by-products identified by LC-MS/MS, revealed the occurrence of hydroxylation, chlorination and defluorination steps. Additionally, 5 stable by-products were detected by GC-MS. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Elsevier B.V. | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1016/j.seppur.2022.122893 | - |
dc.relation.ispartof | Separation and Purification Technology, 2022, vol. 308, p. 122893 | - |
dc.relation.uri | https://doi.org/10.1016/j.seppur.2022.122893 | - |
dc.rights | cc-by-nc-nd (c) Murrieta, Maria F. et al., 2022 | - |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | - |
dc.source | Articles publicats en revistes (Ciència dels Materials i Química Física) | - |
dc.subject.classification | Oxidació electroquímica | - |
dc.subject.classification | Reutilització de l'aigua | - |
dc.subject.classification | Fotoelectrons | - |
dc.subject.other | Electrolytic oxidation | - |
dc.subject.other | Water reuse | - |
dc.subject.other | Photoelectrons | - |
dc.title | Solar photoelectro-Fenton-like process with anodically-generated HClO in a flow reactor: Norfloxacin as a pollutant with a particular structure | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 728280 | - |
dc.date.updated | 2023-03-31T16:50:15Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Ciència dels Materials i Química Física) |
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728280.pdf | 1.09 MB | Adobe PDF | View/Open |
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