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Electrochemical treatment of a synthetic wastewater containing a sulphonated azo dye. Determination of naphthalenesulphonic compunds produced as main by-products

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Electrochemical treatment of a synthetic wastewater containing a sulphonated azo dye. Determination of naphthalenesulphonic compunds produced as main by-products

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dc.contributor.author Del Río García, Ana Isabel es_ES
dc.contributor.author Fernández Sáez, Javier es_ES
dc.contributor.author Molina Puerto, Javier es_ES
dc.contributor.author Bonastre Cano, José Antonio es_ES
dc.contributor.author Cases Iborra, Francisco Javier es_ES
dc.date.accessioned 2014-05-12T11:26:20Z
dc.date.issued 2011-06-15
dc.identifier.issn 0011-9164
dc.identifier.uri http://hdl.handle.net/10251/37406
dc.description.abstract The electrochemical treatment of wastewaters from textile industry is a promising technique for substances which are resistant to biodegradation. This paper deals with the electrochemical decolourisation/degradation of synthetic solutions containing a reactive dye, C.I. Reactive Orange 4. Oxidation, reduction and oxido-reduction processes were evaluated using Ti/SnO 2-Sb-Pt and stainless steel electrodes as anode and cathode, respectively. Electrolyses were performed at galvanostatic conditions in a filter press reactor. Decolourisation and degradation were followed by means of total organic carbon (TOC), chemical oxygen demand (COD) measurements and high performance liquid chromatography (HPLC). A higher mineralisation rate for oxidation was found whilst oxido-reduction process gave more oxidised species. The kinetics of decolourisation was of pseudo-first order in all cases. The reduction process was the slowest process to decolourise. Gas chromatography-mass spectrometry (GC-MS) was employed to investigate the main intermediate compounds, confirming the presence of 2-amino-1, 5-naphthalenedisulphonic acid (2A15NDS) in solution. When this compound was generated, it was gradually degraded during the oxidation and oxido-reduction processes indicating the feasibility and durability of Ti/SnO 2-Sb-Pt electrodes. However, during the electrochemical reduction process, this compound was continuously generated but it was not degraded. © 2011 Elsevier B.V. es_ES
dc.description.sponsorship The authors would like to acknowledge the Spanish Ministry of Science and Innovation (MICINN) and European Union (FEDER funds) for the financial support (CTM2007-66570-C02-02 and CTM2010-18842-C02-02). A. I. del Rio thanks the Spanish Ministry of Science and Innovation (MICINN) for her F.P.I. grant awarding. J. Molina is grateful to the Conselleria d'Educacio (Generalitat Valenciana) for his FPI grant awarding. en_EN
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation Spanish Ministry of Science and Innovation (MICINN) es_ES
dc.relation European Union [CTM2007-66570-C02-02, CTM2010-18842-C02-02] es_ES
dc.relation Conselleria d'Educacio (Generalitat Valenciana) es_ES
dc.relation.ispartof Desalination es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Derivatisation es_ES
dc.subject Electrochemical wastewater treatment es_ES
dc.subject GC-MS es_ES
dc.subject Naphthalensulphonic compound es_ES
dc.subject Reactive dye es_ES
dc.subject Reactive dyes es_ES
dc.subject Antimony es_ES
dc.subject Azo dyes es_ES
dc.subject Biodegradation es_ES
dc.subject Biological water treatment es_ES
dc.subject Degradation es_ES
dc.subject Dies es_ES
dc.subject Electrochemistry es_ES
dc.subject Electrodes es_ES
dc.subject Electrolytic reduction es_ES
dc.subject Gas chromatography es_ES
dc.subject High performance liquid chromatography es_ES
dc.subject Mass spectrometry es_ES
dc.subject Organic carbon es_ES
dc.subject Oxidation es_ES
dc.subject Oxygen es_ES
dc.subject Platinum es_ES
dc.subject Stainless steel es_ES
dc.subject Textile finishing es_ES
dc.subject Textile industry es_ES
dc.subject Wastewater es_ES
dc.subject Wastewater treatment es_ES
dc.subject Water treatment plants es_ES
dc.subject Chemical oxygen demand es_ES
dc.subject Durability es_ES
dc.subject Dye es_ES
dc.subject Electrochemical method es_ES
dc.subject Electrokinesis es_ES
dc.subject Mineralization es_ES
dc.subject Naphthalene es_ES
dc.subject Reduction es_ES
dc.subject Total organic carbon es_ES
dc.subject Waste treatment es_ES
dc.subject.classification QUIMICA FISICA es_ES
dc.title Electrochemical treatment of a synthetic wastewater containing a sulphonated azo dye. Determination of naphthalenesulphonic compunds produced as main by-products es_ES
dc.type Artículo es_ES
dc.embargo.lift 10000-01-01
dc.embargo.terms forever es_ES
dc.identifier.doi 10.1016/j.desal.2011.01.070
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Textil y Papelera - Departament d'Enginyeria Tèxtil i Paperera es_ES
dc.description.bibliographicCitation Del Río García, AI.; Fernández Sáez, J.; Molina Puerto, J.; Bonastre Cano, JA.; Cases Iborra, FJ. (2011). Electrochemical treatment of a synthetic wastewater containing a sulphonated azo dye. Determination of naphthalenesulphonic compunds produced as main by-products. Desalination. 273(2-3):428-435. doi:10.1016/j.desal.2011.01.070 es_ES
dc.description.accrualMethod Senia es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.desal.2011.01.070 es_ES
dc.description.upvformatpinicio 428 es_ES
dc.description.upvformatpfin 435 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 273 es_ES
dc.description.issue 2-3 es_ES
dc.relation.senia 41327


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