Degradation of enoxacin antibiotic by the electro-Fenton process: Optimization, biodegradability improvement and degradation mechanism.
This study aims to investigate the effectiveness of the electro-Fenton process on the removal of a second generation of fluoroquinolone, enoxacin. The electrochemical reactor involved a carbon-felt cathode and a platinum anode. The influence of some experimental parameters, namely the initial enoxac...
| Publicado en: | Journal of Environmental Management Vol. 165; pp. 96 - 106 |
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| Autores principales: | , , , , , , |
| Formato: | Artículo |
| Publicado: |
Academic Press Inc.
Jan2016
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=110533309&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 110533309 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 03014797 EMJ jtl: Journal of Environmental Management issn: 03014797 maglogo: N pubinfo: dt: Jan2016 vid: 165 pid: 735 pub: Academic Press Inc. artinfo: ui: 110533309 10.1016/j.jenvman.2015.09.018 ppf: 96 ppct: 10 formats: tig: atl: Degradation of enoxacin antibiotic by the electro-Fenton process: Optimization, biodegradability improvement and degradation mechanism. aug: au: Annabi, Cyrine Fourcade, Florence Soutrel, Isabelle Geneste, Florence Floner, Didier Bellakhal, Nizar Amrane, Abdeltif affil: Institut des Sciences Chimiques de Rennes, Ecole Nationale Supérieure de Chimie de Rennes, Université de Rennes 1, UMR-CNRS 6226, 11 Allée de Beaulieu, CS 50837, 35708 Rennes Cedex 7, France Centre d'Electrochimie de Nanomatériaux et Leurs Applications et de Didactique (CENAD), France Institut National des Sciences Appliquées et de Technologie, B.P. No. 676, 1080 Tunis Cedex, Tunisia Université Européenne de Bretagne, 5 Boulevard Laënnec, 35000, France Institut des Sciences Chimiques de Rennes, Université de Rennes 1, UMR-CNRS 6226, Campus de Beaulieu, 35042 Rennes Cedex, France su: Enoxacin Antibiotics Biodegradation Fluoroquinolones Electrochemical sensors Fenton's reagent sug: subj: Pharmaceutical and medicine manufacturing Medicinal and Botanical Manufacturing Pharmaceuticals and pharmacy supplies merchant wholesalers Drugs and Druggists' Sundries Merchant Wholesalers Enoxacin Antibiotics Biodegradation Fluoroquinolones Electrochemical sensors Fenton's reagent keyword: Biodegradability improvement By-products Electro-Fenton process Enoxacin removal Hydroxyl radicals Biodegradability improvement By-products Electro-Fenton process Enoxacin removal Hydroxyl radicals ab: This study aims to investigate the effectiveness of the electro-Fenton process on the removal of a second generation of fluoroquinolone, enoxacin. The electrochemical reactor involved a carbon-felt cathode and a platinum anode. The influence of some experimental parameters, namely the initial enoxacin concentration, the applied current intensity and the Fe(II) amount, was examined. The degradation of the target molecule was accompanied by an increase of the biodegradability, assessed from the BOD 5 on COD ratio, which increased from 0 before treatment until 0.5 after 180 min of electrolysis at 50 mg L −1 initial enoxacin concentration, 0.2 mmol L −1 Fe(II) concentration and 300 mA applied current intensity. TOC and COD time-courses were also evaluated during electrolysis and reached maximum residual yields of 54% and 43% after 120 min of treatment, respectively. Moreover, a simultaneous generation of inorganic ions (fluorides, ammonium and nitrates) were observed and 3 short chain carboxylic acids (formic, acetic and oxalic acids) were identified and monitored during 180 min of electrolysis. By-products were identified according to UPLC-MS/MS results and a degradation pathway was proposed. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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