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Issue
Korean Journal of Chemical Engineering,
Vol.28, No.1, 149-155, 2011
Removal of methylene blue dye from aqueous solution by activated carbon prepared from cashew nut shell as a new low-cost adsorbent
Kumar PS, Ramalingam S, Sathishkumar K
Methylene blue dye was adsorbed on an adsorbent prepared from cashew nut shell. A batch adsorption study was carried out with variable adsorbent amount, initial dye concentration, contact time and pH. Studies showed that the pH of aqueous solutions affected dye removal as a result of removal efficiency increased with increasing solution pH. The experimental data were analyzed by the Langmuir, Freundlich, Redlich-Peterson, Koble-Corrigan, Toth, Temkin, Sips and Dubinin-Radushkevich models of adsorption using MATLAB 7.1. The experimental data yielded excellent fits within the following isotherm order: Redlich-Peterson>Toth>Sips>Koble-Corrigan>Langmuir>Temkin>Dubinin-Radushkevich>Freundlich, based on its correlation coefficient values. Three simplified kinetic models including a pseudofirst-order, pseudo-second-order and intraparticle diffusion equations were selected to follow the adsorption process. It was shown that the adsorption of methylene blue could be described by the pseudo-second-order equation. The results indicate that cashew nut shell activated carbon could be employed as a low cost alternative to commercial activated carbon in the removal of dyes from wastewater.
Keywords: Cashew Nut Shell; Activated Carbon; Methylene Blue; Adsorption; Isotherms; Kinetics
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[Cited By]
  1. Li Q, Zhao Y, Wang L, Aiqin W, Korean Journal of Chemical Engineering, 28(8), 1658, 2011
  2. Kumar PS, Raja MJS, Kumaresan M, Loganathan DK, Chandrasekaran P, Korean Journal of Chemical Engineering, 31(2), 276, 2014
  3. Hassani A, Vafaei F, Karaca S, Khataee AR, Journal of Industrial and Engineering Chemistry, 20(4), 2615, 2014
  4. Shirzad-Siboni M, Khataee A, Vafaei F, Joo SW, Korean Journal of Chemical Engineering, 31(8), 1451, 2014
  5. Dehghani MH, Dehghan A, Alidadi H, Dolatabadi M, Mehrabpour M, Converti A, Korean Journal of Chemical Engineering, 34(6), 1699, 2017
  6. Digeroglu Z, Kucukyildiz G, Hasimoglu A, Taktak F, Aciksoz N, Korean Journal of Chemical Engineering, 37(11), 1975, 2020
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