doi: 10.7763/IJESD.2012.V3.251
Kinetics and Adsorption Isotherm Study of Removal of Zn+2 ions from Aqueous Solution Using Thermal Power Plant Fly Ash
A. K. Agarwal1
,
M. S. Kadu1 ,
C. P. Pandhurnekar2 ,
I. L. Muthreja3
- 1the Department of Civil Engineering, Shri Ramdeobaba College of Engineering and Management, Nagpur, Maharastra, 440 013 India
- 2the Department of Applied Chemistry, Shri Ramdeobaba College of Engineering and Management, Nagpur, Maharastra, India
- 3the Department of Mining Engineering, Visvesvaraya National Institute of Technology, Nagpur, Maharashtra, India
Abstract
In the present investigation, fly ash received from Koradi Thermal Power Plant, India, is used as an adsorbent for the removal of Zn+2 ions from aqueous solution. The adsorption study were systematically carried out in a batch process using Atomic Absorption Spectroscopy (AAS) Technique, covering different process parameters such as amount of adsorbent, effect of contact time under constant stirring condition and steady state condition, and initial Zn+2 ions concentration. Removal tendency of Zn+2 ions from aqueous solution were also investigated using lime as an admixture along with the fly ash. It was found that use of lime as an admixture enhances the removal tendency of Zn+2 ions. The equilibrium data were processed using both Langmuir and Freundlich isotherm models. Finally, the kinetics of adsorption of Zn+2ions on fly ash particles were tested for different models. The results obtained in the present research work suggest that fly ash along with lime may be a promising adsorbent for Zn+2ions.
Keywords
- Adsorption isotherm
- fly ash
- pseudo firstorder reaction
- zinc (II) ions
How to Cite
A. K. Agarwal, M. S. Kadu, C. P. Pandhurnekar, and I. L. Muthreja, "Kinetics and Adsorption Isotherm Study of Removal of Zn+2 ions from Aqueous Solution Using Thermal Power Plant Fly Ash," International Journal of Environmental Science and Development, vol. 3, no. 4, pp. 376-381, 2012. https://doi.org/10.7763/IJESD.2012.V3.251
Copyright & License
Copyright © 2012 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).