A Statistical Approach to Optimization of Congo Red Dye Removal (CRDR) Via Coconut Shell Activated Carbon (CSAC)
International Journal of Computational and Theoretical Chemistry
Volume 4, Issue 2, September 2016, Pages: 7-13
Received: Oct. 20, 2016;
Accepted: Nov. 4, 2016;
Published: Dec. 20, 2016
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Adepoju Tunde Folorunsho, Chemical and Petrochemical Engineering Department, Akwa-Ibom State University, Ikot Akpaden, Mkpat Enin L.G.A, Nigeria
Ukpong Anwana Abel, Chemical and Petrochemical Engineering Department, Akwa-Ibom State University, Ikot Akpaden, Mkpat Enin L.G.A, Nigeria
Eyibio Uduak Promise, Chemical and Petrochemical Engineering Department, Akwa-Ibom State University, Ikot Akpaden, Mkpat Enin L.G.A, Nigeria
The use of low-cost, locally available, highly efficient and eco-friendly adsorbents has been investigated as an ideal alternative to the current expensive methods of removing dyes from waste water. The aim of this work was the production of coconut shell activated carbon of Congo Red (CR) dye from aqueous solution. Batch adsorption studies were carried out by observing the effects of temperature and time, and the optimal experimental conditions were ascertained. Variables such as the adsorbent dose, initial concentration of solution and pH of solution were kept constant at 1 g, 100 mg/L and 7, respectively. The adsorptive capacity and percentage colour removal was mathematically described as a function of experimental parameters and was modelled through central composite response surface methodology (CCRSM). Results showed that the adsorption capacity and the percentage colour removal increased with an increase in time and temperature. The statistical predicted optimum values were validated by carrying out three experiments and an average Congo red (CR) of 86.82% and adsorption capacity (AC) of 8.50 mg/l were obtained at a time (X1) = -1 and a temperature (X2) = -1. The coefficient of determination (R2) and R-Sq. (adj.) for CR found in this study were 98.28% and 97.05%, while that for AC were 87.85% and 79.16%, respectively. Thus, the study concluded that the adsorbent was found to be effective, viable and suitable for the removal of Congo Red Dye from aqueous solution and its statistical analysis increased its optimum yields.
Adepoju Tunde Folorunsho,
Ukpong Anwana Abel,
Eyibio Uduak Promise,
A Statistical Approach to Optimization of Congo Red Dye Removal (CRDR) Via Coconut Shell Activated Carbon (CSAC), International Journal of Computational and Theoretical Chemistry.
Vol. 4, No. 2,
2016, pp. 7-13.
Copyright © 2016 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/
) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Banat, F., Al-Asheh S. and Al-Makhadmeh (2003): “Evaluation of the use of raw and activated date pits as potential adsorbents for dye containing water”. Proc. Biochem, 39(2): 193-202.
Hema, M. and Arivoli, S. (2007): “Comparative study on the adsorption kinetics and thermodynamics of dyes onto acid activated low cost carbon”. International journal of physical sciences, 2(1): 10-17.
Weber, E. J. and Stickney, V. C. (1993): “Water pollution by synthesis textile dyes”. Water Res. 27: 63.
Okeola, O. F., Odebunmi, E. O. And Bakare, O. F. (2014): “Equilibrium and kinetic studies of adsorption of congo red by activated carbon”. Middle-East journal of scientific research. 19(11): 1425-1431.
Liu, R. L. H, Chiu, H. M, Yeh, R. Y. L (2003): “International Journal of Environmental Studies”. 59: 143-158.
Arslan, I, Balcoiglu, I. A and Tuhhkanen, T. J (2000): “Journal of Environmental Science Health”. 35: 775-793.
Torres R. M, Gutierrez, M. C (2010): “Chemical Engineering Journal”. 156, 114-120.
Mahmoud, A. S, Ghaly, A. E and Brooks, M. S (2007): “American Journal of Environmental Sciences”. 3(4): 205-218.
Chakraborty, S., Purkait, M. K, DasGupta, S., Basu, J. K (2003): “Separation and Purification Technology”. 31, 141-151.
Bilal, A. (2004): “Journal of Colloid and Interface Science”. 274, 371-379.
Haimour, N. M, Emeish, S. (2006): “Utilization of date stones for production of activated carbon using Phosphoric acid”. Waste Management. 26, 51-60.
Diao, W. P, Fan Walawender, L. T (2002): “Activated carbon prepared from Phosphoric acid activation of grain sorghum”. Bioressour Technology. 81, 45-52.
Rafatullah, M., Sulaiman, O., Hashim, R., Ahmad, A. (2010): “Adsorption of methylene blue on low-cost adsorbents: A review”. J. Hazard., Mater., 177: 70-80.
Demirbas, A. (2009): Agricultural based activated carbons for the removal of dyes from aqueous solutions. A review”. J. Hazard. Mater., 167: 1-9.
Kyzas, G. Z. and Matis, K. A. (2013): “A change from past to future for adsorbent materials in treatment of dyeing wastewaters: A review”. Materials 6: 5131-5158.
Babel, S. and Kurniawan T. A (2003): “Low-cost adsorbents for heavy metals uptake from contaminated water”. Journal of Hazard materials. 97: 219-243.
Ahmad, M. A and Alrozi, R. (2010): “Optimization of preparation conditions for mangosteen peel-based activated carbons for the removal of Remazol Brilliant Blue R using Response Surface Methodology”. Chem. Eng J. 165: 883-890.