Dyes removal from water using low cost absorbents

In this study, the removal capacity of low cost adsorbents during the adsorption of Methylene Blue (MB) and Congo Red (CR) at different concentrations (50 and 100mg•L-1) was evaluated. These adsorbents were produced from wood wastes (cedar and teak) by chemical activation (ZnCl2). Both studied materials, Activated Cedar (AC) and activated teak (AT) showed a good fit of their experimental data to the pseudo second order kinetic model and Langmuir isotherms. The maximum adsorption capacities for AC were 2000.0 and 444.4mg•g-1 for MB and CR, respectively, while for AT, maximum adsorption capacities of 1052.6 and 86.4mg•g-1 were found for MB and CR, respectively. © Published under licence by IOP Publishing Ltd.

• Fecha de publicación: 2017
• Institución: Universidad de Medellín
• Repositorio: Repositorio UDEM
• Idioma: eng
• OAI Identifier: oai:repository.udem.edu.co:11407/4569
• Acceso en línea: http://hdl.handle.net/11407/4569
• Palabra clave: Adsorption; Aromatic compounds; Azo dyes; Chemical activation; Dyes; Zinc chloride; Adsorption capacities; Congo red; Langmuir isotherm; Low costs; Low-cost adsorbents; Methylene Blue; Pseudo-second-order kinetic models; Removal capacity; Stripping (dyes)
• License: http://purl.org/coar/access_right/c_16ec