Comparative evaluation of adsorption kinetics of diclofenac and isoproturon by activated carbon

Silvia A. TorrellasCatalysis and Separation Processes Group (CyPS), Department of Chemical Engineering, Faculty of Chemistry, Complutense University, Madrid, Spain

Araceli R. RodriguezCatalysis and Separation Processes Group (CyPS), Department of Chemical Engineering, Faculty of Chemistry, Complutense University, Madrid, Spain

Gabriel O. EscuderoCatalysis and Separation Processes Group (CyPS), Department of Chemical Engineering, Faculty of Chemistry, Complutense University, Madrid, Spain

José María G. MartínCatalysis and Separation Processes Group (CyPS), Department of Chemical Engineering, Faculty of Chemistry, Complutense University, Madrid, Spain

Juan G. RodriguezCatalysis and Separation Processes Group (CyPS), Department of Chemical Engineering, Faculty of Chemistry, Complutense University, Madrid, SpainCorrespondence[email protected]

Abstract

Adsorption mechanism of diclofenac and isoproturon onto activated carbon has been proposed using Langmuir and Freundlich isotherms. Adsorption capacity and optimum adsorption isotherms were predicted by nonlinear regression method. Different kinetic equations, pseudo–first-order, pseudo–second-order, intraparticle diffusion model and Bangham kinetic model, were applied to study the adsorption kinetics of emerging contaminants on activated carbon in two aqueous matrices.

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Funding

The authors gratefully acknowledge the financial support from Ministerio de Economía y Competitividad, MINECO (CTQ2011-27169 and TRAGUANET Network CTM2014-53485-REDC) and by Comunidad de Madrid through REMTAVARES Network S2013/MAE-2716.

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Comparative evaluation of adsorption kinetics of diclofenac and isoproturon by activated carbon

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Comparative evaluation of adsorption kinetics of diclofenac and isoproturon by activated carbon

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