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Using central composite experimental design to optimize the degradation of real dye wastewater by Fenton and photo-Fenton reactions
dc.contributor.author | Torrades Carné, Francesc |
dc.contributor.author | García Montaño, Júlia |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Enginyeria Química |
dc.date.accessioned | 2014-07-18T10:22:21Z |
dc.date.available | 2014-07-18T10:22:21Z |
dc.date.created | 2014-01 |
dc.date.issued | 2014-01 |
dc.identifier.citation | Torrades, F.; García-Montaño, J. Using central composite experimental design to optimize the degradation of real dye wastewater by Fenton and photo-Fenton reactions. "Dyes and pigments", Gener 2014, vol. 100, p. 184-189. |
dc.identifier.issn | 0143-7208 |
dc.identifier.uri | http://hdl.handle.net/2117/23562 |
dc.description.abstract | This work focuses on the use of Fenton reagent and UV-irradiation, in a lab-scale experiment, for the treatment of real dye wastewater coming from a Spanish textile manufacturer. Response surface methodology and a 23 factorial design were used to evaluate the effects of the three independent variables considered for the optimization of the oxidative process: temperature, Fe (II) and H2O2 concentrations, for a textile wastewater generated during a dyeing process with chemical oxygen demand of 1705 mg L -1 O2 at pH = 3. Wastewater degradation was followed in terms of chemical oxygen demand reduction. In the optimization, the correlation coefficients for the model (R2) were 0.985 and 0.990 for Fenton and photo-Fenton treatments respectively. Optimum reaction conditions at pH = 3 and temperature = 298 K were [H2O2] = 73.5 mM and [Fe(II)] = 1.79 mM. The combination of Fenton, Fenton-like and photon-Fenton reactions has been proved to be highly effective for the treatment of such a type of wastewaters, and several advantages for this technique arise from the study. Under optimum conditions, 120 min of treatment resulted in a 62.9% and 76.3% reduction in chemical oxygen demand after Fenton and photo-Fenton treatments respectively. |
dc.format.extent | 6 p. |
dc.language.iso | eng |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Spain |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Enginyeria química::Indústries químiques::Química tèxtil |
dc.subject | Àrees temàtiques de la UPC::Enginyeria química::Indústria dels processos químics |
dc.subject.lcsh | Textile chemistry |
dc.subject.lcsh | Oxidation-reduction reaction |
dc.subject.other | Advanced oxidation processes |
dc.subject.other | Central composite design |
dc.subject.other | Chemical oxygen demand reduction |
dc.subject.other | Fenton |
dc.subject.other | Photochemical reactions |
dc.subject.other | Real dye wastewater |
dc.title | Using central composite experimental design to optimize the degradation of real dye wastewater by Fenton and photo-Fenton reactions |
dc.type | Article |
dc.subject.lemac | Química tèxtil -- Residus |
dc.subject.lemac | Reacció d'oxidació-reducció |
dc.contributor.group | Universitat Politècnica de Catalunya. ENMA - Enginyeria del Medi Ambient |
dc.identifier.doi | 10.1016/j.dyepig.2013.09.004 |
dc.rights.access | Open Access |
local.identifier.drac | 13441974 |
dc.description.version | Preprint |
local.citation.author | Torrades, F.; García-Montaño, J. |
local.citation.publicationName | Dyes and pigments |
local.citation.volume | 100 |
local.citation.startingPage | 184 |
local.citation.endingPage | 189 |