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Removal of Cr(VI), Cu(II), Pb(II) and Ni(II) from Aqueous Solutions by Adsorption on Alumina

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Author Affiliations

  • 1PG and Research Department of Chemistry, V.O. Chidambaram College, Tuticorin- 628008, Tamilnadu, INDIA
  • 2PG and Research Department of Chemistry, Aditanar College of Arts and Science, Trichendur- 628216, Tamilnadu, INDIA

Res.J.chem.sci., Volume 3, Issue (8), Pages 44-48, August,18 (2013)

Abstract

The extent of removal of heavy metal ions (Chromium, copper, lead and nickel) by adsorption on alumina has been investigated. Adsorption experiments were performed in batch technique from synthetic solutions using alumina as adsorbent. Several experimental parameters that affect the extent of adsorption of the metal ions of interest have been investigated such as adsorbent dosage, concentration of the adsorbate, contact time, temperature and pH of the system under study. The equilibrium nature of the adsorption of the metal ions at different concentrations has been followed by Freundlich and Langmuir adsorption isotherms. This work proposes a cost-effective method for the efficient removal of Cr(VI), Cu(II), Pb(II) and Ni(II)from aqueous solutions. The conditions required for effective removal have been optimized.

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