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    Adsorption capacity of methylene blue, an organic pollutant, by montmorillonite clay

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    Type
    Article
    Authors
    Feddal, I.
    Ramdani, Amina
    Taleb, Safia
    Gaigneaux, E. M.
    Batis, Narjès Harrouch
    Ghaffour, NorEddine cc
    KAUST Department
    Biological and Environmental Sciences and Engineering (BESE) Division
    Environmental Science and Engineering Program
    Water Desalination and Reuse Research Center (WDRC)
    Date
    2013-11-25
    Online Publication Date
    2013-11-25
    Print Publication Date
    2014-04-16
    Permanent link to this record
    http://hdl.handle.net/10754/563091
    
    Metadata
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    Abstract
    The isotherms and kinetics of the adsorption of a cationic dye in aqueous solution, methylene blue, on a local Algerian montmorillonite clay mineral (raw, sodium and thermally activated at 300 and 500°C) were determined experimentally. Various parameters influencing the adsorption were optimized, mainly solid-liquid contact time, mass of adsorbent, initial concentration of dye, pH of the solution and temperature. Results showed that the adsorption kinetics were fast: 30 min for the raw clay mineral, and 20 min for sodium clay mineral (SC) and thermally activated at 300°C, whereas with the clay mineral calcined at 500°C, the equilibrium was reached after 150 min only. The maximum adsorption capacity was reached at pH 6.6. Results deducted from the adsorption isotherms also showed that the retention follows the Langmuir model. In addition, it was found that the kinetics were in the order of 2 (K = 2.457 × 106 g/mg.h) for sodium clay and were limited by an intra-particle diffusion. SC was found to be a better adsorbent to remove methylene blue from industrial wastewater. © 2013 Balaban Desalination Publications. All rights reserved.
    Citation
    Feddal, I., Ramdani, A., Taleb, S., Gaigneaux, E. M., Batis, N., & Ghaffour, N. (2013). Adsorption capacity of methylene blue, an organic pollutant, by montmorillonite clay. Desalination and Water Treatment, 52(13-15), 2654–2661. doi:10.1080/19443994.2013.865566
    Publisher
    Informa UK Limited
    Journal
    Desalination and Water Treatment
    DOI
    10.1080/19443994.2013.865566
    ae974a485f413a2113503eed53cd6c53
    10.1080/19443994.2013.865566
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Environmental Science and Engineering Program; Water Desalination and Reuse Research Center (WDRC)

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