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Adsorption of Benzene on Activated Carbon from Agricultural Waste Materials

Author Affiliations

  • 1Department of Chemical/Petrochemical Engineering, Rivers State University of Science and Technology, Port-Harcourt, Rivers State, NIGERIA
  • 2Department of Petroleum Engineering, Rivers State University of Science and Technology, Port-Harcourt, Rivers State, NIGERIA

Res.J.chem.sci., Volume 4, Issue (9), Pages 34-40, September,18 (2014)


Activated carbon was produced from three carbon rich agricultural waste materials; bamboo, coconut and palm kernel shells by pyrolysis and chemical activation (using tri oxo nitrate (v) acid (HNO3 )). The activated carbons were characterized and used as adsorbent for the removal of benzene from aqueous solution. The effects of various parameters such as particle size, adsorbent dosage and initial benzene concentration on the adsorption efficiency of the activated carbons were investigated. Benzene adsorption decreased with increase in particle size of activated carbon, decrease was minimal with activated carbon produced from bamboo. Benzene adsorption increased with increase in adsorbent dosage. Increase in initial benzene concentration resulted in increased adsorption using activated carbon from coconut and palm kernel shells; a decrease in adsorption using activated carbon from bamboo.


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