Dyes removal from water using low cost absorbents

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Date
2017
Author
Giraldo S., Ramirez A.P., Ulloa M., Flórez E., Acelas N.Y.
Giraldo, S., Universidad de Medellin, Medellin, Colombia; Ramirez, A.P., Universidad de Medellin, Medellin, Colombia; Ulloa, M., Universidad de Medellin, Medellin, Colombia; Flórez, E., Universidad de Medellin, Medellin, Colombia; Acelas, N.Y., Universidad de Medellin, Medellin, Colombia
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Abstract
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.
URI
http://hdl.handle.net/11407/4569
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