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Journal of Engineering and Applied Sciences
Year: 2013 | Volume: 8 | Issue: 4 | Page No.: 97-103
DOI: 10.36478/jeasci.2013.97.103  
Kinetics and Adsorption Isotherms of Arsenic (V) onto Natural Pozzolan
G.P. Kofa , S. Ndi Koungou , G.J. Kayem and R. Kamga
 
Abstract: Adsorption of arsenic (V) from aqueous solutions onto natural pozzolan from Djoungo was studied. Experiments were carried out in batch as a function of contact time and pH at a frequency of 7 Hz. Results showed that adsorption equilibrium onto pozzolan was attained in 20 min at the pH studied and kinetics followed a pseudo-second-order model. The experimental isotherm data were analyzed using Freundlich, Langmuir and Redlich-Peterson isotherm equations. In order to determine the best-fit isotherm for each system, non-linear regressions were carried out. For this, Chi-square error was used to evaluate the data. The errors values indicated that the Redlich-Peterson isotherm was able to provide best quality fit for all the experimental data.
 
How to cite this article:
G.P. Kofa, S. Ndi Koungou, G.J. Kayem and R. Kamga, 2013. Kinetics and Adsorption Isotherms of Arsenic (V) onto Natural Pozzolan. Journal of Engineering and Applied Sciences, 8: 97-103.
DOI: 10.36478/jeasci.2013.97.103
URL: http://medwelljournals.com/abstract/?doi=jeasci.2013.97.103