International Journal of Scientific Engineering and Technology

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Adsorbent from Pongamia pinnata Tree Bark for Zinc Adsorption


Affiliations
1 Department of Chemical Engineering, Bapuji Institute of Engineering and Technology, Davangere, Karnataka, India
2 Department of Civil Engineering, Bapuji Institute of Engineering and Technology, Davangere, Karnataka, India
3 Gulbarga University, Gulbarga, India
4 Department of Chemistry, Bapuji Institute of Engineering and Technology, Davangere, Karnataka, India
 

In the recent years, Pongamia pinnata trees are widely grown at farms for its seeds utilised for biofuel activities. Due to the easy availability of this tree bark, it is used as a viable adsorbent for removing some heavy metals from aqueous and waste water. In this context, the adsorption of Zinc on prepared adsorbent is very effective. In this study, investigations were made for the adsorption of zinc ions from aqueous and waste water. Batch adsorption studies to determine the optimum conditions of zinc ion removal were conducted to know the influence of experimental conditions such as pH of the solution, metal ion concentration, amount of adsorbent and contact time at room temperature. The results obtained show that the optimum pH range for the zinc removal is 5 – 5.4 and adsorption percent is higher than 95 %. Kinetic study was also made to determine rate constants.

Keywords

Adsorbent, Adsorption Isotherms, Effluent, Kinetics, Pongamia pinnata, Zinc.
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  • Adsorbent from Pongamia pinnata Tree Bark for Zinc Adsorption

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Authors

M. Mamatha
Department of Chemical Engineering, Bapuji Institute of Engineering and Technology, Davangere, Karnataka, India
H. B. Aravinda
Department of Civil Engineering, Bapuji Institute of Engineering and Technology, Davangere, Karnataka, India
E. T. Puttaiah
Gulbarga University, Gulbarga, India
S. Manjappa
Department of Chemistry, Bapuji Institute of Engineering and Technology, Davangere, Karnataka, India

Abstract


In the recent years, Pongamia pinnata trees are widely grown at farms for its seeds utilised for biofuel activities. Due to the easy availability of this tree bark, it is used as a viable adsorbent for removing some heavy metals from aqueous and waste water. In this context, the adsorption of Zinc on prepared adsorbent is very effective. In this study, investigations were made for the adsorption of zinc ions from aqueous and waste water. Batch adsorption studies to determine the optimum conditions of zinc ion removal were conducted to know the influence of experimental conditions such as pH of the solution, metal ion concentration, amount of adsorbent and contact time at room temperature. The results obtained show that the optimum pH range for the zinc removal is 5 – 5.4 and adsorption percent is higher than 95 %. Kinetic study was also made to determine rate constants.

Keywords


Adsorbent, Adsorption Isotherms, Effluent, Kinetics, Pongamia pinnata, Zinc.