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Abstract

REMOVAL OF FLUORIDE USING GROUNDNUT SHELL IN BATCH REACTOR: KINETICS AND EQUILIBRIUM STUDIES

Tej Pratap Singh and C. B. Majumder*

ABSTRACT

This paper investigates the removal of fluoride from industrial waste water using groundnut shell in a batch reactor. The effect of various parameters was studied to find the optimum conditions for maximum removal of fluoride. Parameters like time and initial concentration of fluoride on the % removal have been studied. Kinetic parameters and equilibrium constants have been computed from various kinetic and equilibrium models. Adsorption of fluoride on to groundnut shell obeyed the pseudo second order rate equation. The equilibrium data were found to fit well with Freundlich isotherm for adsorbent.

Keywords: Fluoride, Bio adsorption, Ground Nutt Shell, Industrial waste water, Freundlich isotherm, Pseudo Second order Model.


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