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Vol. 29 No. 2 (2017): Vol 29 Issue 2

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Defluoridation of Drinking Water Using Calcium Modified Chitosan

https://doi.org/10.14233/ajchem.2017.20215
Meena Chakraborty
Department of Applied Chemistry, Bhilai Institute of Technology, Durg-491 001, India
Madhurima Pandey
Department of Applied Chemistry, Bhilai Institute of Technology, Durg-491 001, India
Piyush Kant Pandey
Department of Applied Chemistry, Bhilai Institute of Technology, Durg-491 001, India

Corresponding Author(s) : Meena Chakraborty

chakrabortymeena@gmail.com

Asian Journal of Chemistry, Vol. 29 No. 2 (2017): Vol 29 Issue 2

Abstract

Fluoride in water has become a major environmental and health issue now a day. A new adsorbent chitosan calcium compound was prepared and used for defluoridation purpose. Defluoridation capacity of the adsorbent was studied by batch technique. Adsorption of fluoride was studied as a function of contact time, pH, initial fluoride concentration and adsorbent dose. The equilibrium sorption data were fitted to Freundlich, Langmuir and Temkin isotherms. The kinetics of sorption was found to follow pseudo second order and particle diffusion model. Result shows that the chitosan calcium adsorbent can be used for defluoridation of water without causing any harm to environment.

Keywords

Fluoride Adsorption Chitosan Batch technique
Chakraborty, M., Pandey, M., & Pandey, P. K. (2016). Defluoridation of Drinking Water Using Calcium Modified Chitosan. Asian Journal of Chemistry, 29(2), 393–397. https://doi.org/10.14233/ajchem.2017.20215
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