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Título:
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Kinetic models for the electrochemical decolouration of two reactive azo dyes
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Autor/a:
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López Grimau, Víctor; Pepió Viñals, Montserrat; Gutiérrez Bouzán, María Carmen; Buscio Olivera, Valentina
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Otros autores:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria de Projectes i de la Construcció; Universitat Politècnica de Catalunya. Institut d'Investigació Tèxtil i Cooperació Industrial de Terrassa; Universitat Politècnica de Catalunya. ENMA - Enginyeria del Medi Ambient |
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Abstract:
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In this work, the indirect oxidation of two azo dyes (Colour Index Reactive Orange 4 and 13) was performed in an electrochemical batch cell in the presence of chloride as an electrolyte. The effect of different operational parameters on the electrochemical treatment was tested. Kinetic plots consisting of two linear portions were obtained in some experiments. The rate constants and the breaking point between the two linear portions were modelled to evaluate the influence of dye concentration, conductivity and pH. Good correlation between the experimental and the modelled constants and breaking points was observed. Models showed that the dye concentration is the most significant factor in the electrochemical treatment of both dyes, although conductivity and pH were also significant either individually or in interaction with other factors. |
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Abstract:
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Peer Reviewed |
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Materia(s):
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-Àrees temàtiques de la UPC::Enginyeria química::Química física::Electroquímica
-Reactive dyes
-Azo dyes
-Electrochemistry
-Electrochemical oxidation
-Reactive dyes
-Decolouration rate
-Kinetic models
-Factorial experimental design
-Colorants azoics
-Electroquímica |
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Derechos:
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Tipo de documento:
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Artículo - Versión presentada
Artículo |
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Editor:
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Desalination publications
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Compartir:
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