• myGriffith
    • Staff portal
    • Contact Us⌄
      • Future student enquiries 1800 677 728
      • Current student enquiries 1800 154 055
      • International enquiries +61 7 3735 6425
      • General enquiries 07 3735 7111
      • Online enquiries
      • Staff phonebook
    View Item 
    •   Home
    • Griffith Research Online
    • Journal articles
    • View Item
    • Home
    • Griffith Research Online
    • Journal articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

  • All of Griffith Research Online
    • Communities & Collections
    • Authors
    • By Issue Date
    • Titles
  • This Collection
    • Authors
    • By Issue Date
    • Titles
  • Statistics

  • Most Popular Items
  • Statistics by Country
  • Most Popular Authors
  • Support

  • Contact us
  • FAQs
  • Admin login

  • Login
  • Biosorption of As(III) from aqueous solution by Acacia auriculiformis leaves

    Thumbnail
    View/Open
    Al-MamunPUB2454.pdf (2.497Mb)
    File version
    Version of Record (VoR)
    Author(s)
    Al-Mamun, M
    Poostforush, M
    Mukul, SA
    Parvez, K
    Subhan, A
    Griffith University Author(s)
    Al-Mamun, M
    Year published
    2013
    Metadata
    Show full item record
    Abstract
    The biosorption capability of Acacia (Acacia auriculiformis A.Cunn. ex Benth.) leaf powder in batch and a small scale column was investigated. The adsorption properties were analyzed with di erent experimental variables, such as solution pH, amount of biosorbent, initial As(III) concentration and temperature. The maximum adsorption was observed at pH 6.0, while the equilibrium was attained in 5 h. Langmuir and Freundlich equilibrium adsorption isotherm models were utilized for fitting the experimental data. The maximum adsorption capacity of A. auriculiformis leaf powder was calculated to be 41.410 μg g^sup -1^. The kinetic ...
    View more >
    The biosorption capability of Acacia (Acacia auriculiformis A.Cunn. ex Benth.) leaf powder in batch and a small scale column was investigated. The adsorption properties were analyzed with di erent experimental variables, such as solution pH, amount of biosorbent, initial As(III) concentration and temperature. The maximum adsorption was observed at pH 6.0, while the equilibrium was attained in 5 h. Langmuir and Freundlich equilibrium adsorption isotherm models were utilized for fitting the experimental data. The maximum adsorption capacity of A. auriculiformis leaf powder was calculated to be 41.410 μg g^sup -1^. The kinetic data were well fitted using a pseudo-first-order model with a correlation coefficient greater than 0.989. The surface morphology of the biosorbent was analyzed using Scanning Electron Microscopy (SEM). Fourier transform infrared spectroscopy (FTIR) was employed to characterize the surface functional groups of A. auriculiformis leaf powder. The activation energy (E^sub a^) and heat of biosorption (ΔH) were calculated to be 27.549 and 43.380 kJ mol^sup -1^, respectively. The thermodynamic parameters, such as Gibbs free energy (ΔG), enthalpy (ΔH), and entropy (ΔS), revealed the spontaneous nature of the biosorption followed by a physical activated process. Small Scale Column Tests (SSCT) were also conducted to discover the breakthrough characteristics of the column packed with biosorbent.
    View less >
    Journal Title
    Scientia Iranica Transactions C: Chemistry and Chemical Engineering
    Volume
    20
    Issue
    6
    Publisher URI
    http://www.scientiairanica.com/en/ManuscriptDetail?mid=65
    Copyright Statement
    © 2013 Sharif University of Technology. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
    Subject
    Engineering
    Materials engineering not elsewhere classified
    Publication URI
    http://hdl.handle.net/10072/337230
    Collection
    • Journal articles

    Footer

    Disclaimer

    • Privacy policy
    • Copyright matters
    • CRICOS Provider - 00233E

    Tagline

    • Gold Coast
    • Logan
    • Brisbane - Queensland, Australia
    First Peoples of Australia
    • Aboriginal
    • Torres Strait Islander