Optimisation of the electrochemical and UV combined treatment to remove colour and organic halogenated compounds of textile effluents

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To access the full text documents, please follow this link: http://hdl.handle.net/2117/16751

Title:	Optimisation of the electrochemical and UV combined treatment to remove colour and organic halogenated compounds of textile effluents
Author:	Riera Torres, Miquel Antoni; Gutiérrez Bouzán, María Carmen
Other authors:	Universitat Politècnica de Catalunya. Institut d'Investigació Tèxtil i Cooperació Industrial de Terrassa; Universitat Politècnica de Catalunya. Departament d'Enginyeria Tèxtil i Paperera; Universitat Politècnica de Catalunya. ENMA - Enginyeria del Medi Ambient
Abstract:	Different electrochemical oxidation and UV irradiation treatment conditions were studied to improve the removal of colour and organic halogenated compounds of textile effluents wastewater so as to minimize their environmental impact. Synthetic dyeing effluents containing a reactive dye (CI Reactive Black 5, Procion Crimson H-EXL, Procion Navy H-EXL, Procion Yellow H-EXL and Procion Blue H-EXL) and Na2SO4 as dyeing electrolyte were studied. Ti/Pt oxides electrodes at different current densities (3, 6,12,24 and 40 mA/cm2) and three UV irradiation lamps (6 and 9W; 254, 360 and 365 nm maximum emission) were used. Results showed that total colour and organic halogenated compounds removal were achieved by UV irradiation after electrochemical treatment. A clear influence of current density and the type of UV lamp on colour removal was found, being the submerged lamps into the dye solution the most efficient. Kinetic constants of the UV irradiation step were calculated
Subject(s):	-Àrees temàtiques de la UPC::Enginyeria tèxtil ::Impacte ambiental -Textile industry -Textile industry--Environmental aspects -Sewage--Environmental aspects -Indústria tèxtil -- Aspectes ambientals -Aigües residuals -- Depuració
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Document type:	Article - Published version Article
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