Biosorption of formic and acetic acids from aqueous solution using activated carbon from shea butter seed shellsReportar como inadecuado




Biosorption of formic and acetic acids from aqueous solution using activated carbon from shea butter seed shells - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Applied Water Science

pp 1–10

First Online: 28 October 2016Received: 21 December 2015Accepted: 11 October 2016

Abstract

The efficiency of prepared activated carbon from shea butter seed shells SB-AC for the adsorption of formic acid FA and acetic acid AA from aqueous solution was investigated. The effect of optimization parameters including initial concentration, agitation time, adsorbent dosage and temperature of adsorbate solution on the sorption capacity were studied. The SB-AC was characterized for the following parameters: bulk density, moisture content, ash content, pH, Fourier transform infrared spectroscopy FTIR and scanning electron microscopy SEM. The optimal conditions for the adsorption were established and the adsorption data for AA fitted Dubinin–Radushkevich D–R isotherm well, whereas FA followed Langmuir isotherm. The kinetic data were examined. It was found that pseudo-second-order kinetic model was found to adequately explain the sorption kinetic of AA and FA from aqueous solution. It was again found that intraparticle diffusion was found to explain the adsorption mechanism. Adsorption thermodynamic parameters were estimated and the negative values of ∆G showed that the adsorption process was feasible and spontaneous in nature, while the negative values of ∆H indicate that the adsorption process was exothermic. It is therefore established that SB-AC has good potential for the removal of AA and FA from aqueous solution. Hence, it should find application in the regular treatment of polluted water in aquaculture and fish breeding system.

KeywordsAdsorption Wastewater Formic acid Acetic acid Activated carbon Electronic supplementary materialThe online version of this article doi:10.1007-s13201-016-0491-3 contains supplementary material, which is available to authorized users.

Download fulltext PDF



Autor: Folahan A. Adekola - Ismaila A. Oba

Fuente: https://link.springer.com/







Documentos relacionados