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Bioadsorption of Fluoride by Ficusreligiosa (Peepal Leaf Powder): Optimization of process Parameters and Equilibrium study

Author Affiliations

  • 1Uttarakhand Technical University, Dehradun, INDIA
  • 2Department of Biotechnology, S.D. College of Engineering and Technology, Muzaffarnagar, UP, INDIA
  • 3Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, INDIA

Res.J.chem.sci., Volume 4, Issue (7), Pages 52-60, July,18 (2014)


Presentinvestigation focused on the bioadsorption of fluoride from aqueous solution by Ficusreligiosa (peepal) leaves. Removal of fluoride has been investigated as a function of pH, bioadsorbent dose, temperature, time and equilibrium initial fluoride ion concentration. Batch study exposed that the bioadsorption of fluoride on Ficusreligiosa (peepal) leaves were strongly pH dependent, and maximum fluoride removal was found to occur at equilibrium pH of 7. Optimum adsorbent dose, temperature, time and initial concentration were found 10 g/L, 30oC, 45 min and 20 ppm respectively. Characterization of peepal leaves, before and after adsorption were studied by Scanning Electron Micrograph to get a well understanding into the mechanism of adsorption.


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