Preparation of Activated Carbon from Rice Husk and Optimization of Adsorption Parameters for Cr(VI) Removal from Aqueous Solutions

Investigation of the potential of using activated rice husk for chromium (Cr(VI)) removal from aqueous solutions was done through batch experiments. Kernel Basmati brand rice husk (oryza sativa) purchased from the Shadadpur rice mill was chemically activated with nitric acid for its surface properties to increase. There was optimization of the parameters of the adsorption process, i.e. adsorbate concentration, adsorbent dose, agitation time, agitation speed, and pH. At pH 2, on activated rice husk, there was Cr(VI) adsorption of almost 94.73%. Maximum sorption achievement occurred at a 100 rpm agitation speed. A 70 minute equilibrium time was revealed through kinetic experiments. Sorbent amount remained constant at 0.5 gms after optimization. That activated rice husk could be a good Cr(VI) sorption resource material for treating wastewater containing a low concentration of the metal was indicated through various parameter characteristics.

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  • Authors:
    • Qureshi, Khadija
    • Kazi, Rafique Akhtar
    • Ansari, Abdul Khalique
  • Publication Date: 2007-7


  • English

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  • Accession Number: 01055403
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 20 2007 3:13PM