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http://hdl.handle.net/2445/147598
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DC Field | Value | Language |
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dc.contributor.author | Guelfi, Diego Roberta de Vieira | - |
dc.contributor.author | Gozzi, Fábio | - |
dc.contributor.author | Sirés Sadornil, Ignacio | - |
dc.contributor.author | Brillas, Enric | - |
dc.contributor.author | Machulek Jr., Amílcar | - |
dc.contributor.author | De Oliveira, Silvio César | - |
dc.date.accessioned | 2020-01-13T09:17:01Z | - |
dc.date.available | 2020-01-13T09:17:01Z | - |
dc.date.issued | 2018-04-27 | - |
dc.identifier.issn | 0944-1344 | - |
dc.identifier.uri | http://hdl.handle.net/2445/147598 | - |
dc.description.abstract | Solutions with 0.65 mM of the antituberculosis drug isoniazid (INH) in 0.050 M Na2SO4 at pH 3.0 were treated by electro-Fenton (EF) and UVA photoelectro-Fenton (PEF) processes using a cell with a BDD anode and a carbon-PTFE air-diffusion cathode. The influence of current density on degradation, mineralization rate, and current efficiency has been thoroughly evaluated in EF. The effect of the metallic catalyst (Fe2+ or Fe3+) and the formation of products like short-chain linear aliphatic carboxylic acids were assessed in PEF. Two consecutive pseudo-first-order kinetic regions were found using Fe2+ as catalyst. In the first region, at short time, the drug was rapidly oxidized by ●OH, whereas in the second region, at longer time, a resulting Fe(III)-INH complex was much more slowly removed by oxidants. INH disappeared completely at 300 min by EF, attaining 88 and 94% mineralization at 66.6 and 100 mA cm-2, respectively. Isonicotinamide and its hydroxylated derivative were identified as aromatic products of INH by GC-MS and oxalic, oxamic, and formic acids were quantified by ion-exclusion HPLC. The PEF treatment of a real wastewater polluted with the drug led to slower INH and TOC abatements because of the parallel destruction of its natural organic matter content. | - |
dc.format.extent | 11 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Springer Verlag | - |
dc.relation.isformatof | Versió postprint del document publicat a: https://doi.org/10.1007/s11356-018-2024-0 | - |
dc.relation.ispartof | Environmental Science and Pollution Research, 2018, vol. 26, num. 5, p. 4415-4425 | - |
dc.relation.uri | https://doi.org/10.1007/s11356-018-2024-0 | - |
dc.rights | (c) Springer Verlag, 2018 | - |
dc.source | Articles publicats en revistes (Ciència dels Materials i Química Física) | - |
dc.subject.classification | Depuració d'aigües residuals | - |
dc.subject.other | Purification of sewage | - |
dc.title | Antituberculosis drug isoniazid degraded by electro-Fenton and photoelectro-Fenton processes using a boron-doped diamond anode and a carbon-PTFE air-diffusion cathode | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/acceptedVersion | - |
dc.identifier.idgrec | 685869 | - |
dc.date.updated | 2020-01-13T09:17:01Z | - |
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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File | Description | Size | Format | |
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685869.pdf | 564.21 kB | Adobe PDF | View/Open |
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