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Evaluation of Posidonia oceanica and organic sediment as biosorbents: Cu removal in fixed bed columns

Hermon, K ; Allinson, G ; Maher, P ; Stagnitti, F ; Armstrong, R

WIT Transactions on Ecology and the Environment, 2008, Vol.I, p.575-584

Southampton: W I T Press

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  • Título:
    Evaluation of Posidonia oceanica and organic sediment as biosorbents: Cu removal in fixed bed columns
  • Autor: Hermon, K ; Allinson, G ; Maher, P ; Stagnitti, F ; Armstrong, R
  • Assuntos: Computer simulation ; Controlled conditions ; Convection ; Copper ; Exhaustion ; Fixed beds ; Mass transport ; Organic sediments ; Peat ; Posidonia oceanica ; Sediments ; Sorption
  • É parte de: WIT Transactions on Ecology and the Environment, 2008, Vol.I, p.575-584
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  • Descrição: In this work, fixed bed column experiments were performed with the aim of evaluating the Cu uptake capacity of two biosorbents. The marine phanerogam Posidonia oceanica, a waste from local beach cleaning practices at Denia (Spain), and locally available organic sediment, a highly mineralized peat from Torreblanca (Spain) were used. Column runs were carried out to determine the sorption isotherm. For this purpose, breakthrough curves up to the exhaustion point were obtained. Maximum uptake capacities were experimentally determined in 56.7 mg.g-[sup1 and 43.3 mg.g-[sup1 for Posidonia oceanica and organic sediment, respectively. High retention capacities indicate that these materials could be used as effective biosorbents for Cu removal. Langmuir equilibrium parameters were obtained for both biosorbents. A mass transport model including convection-dispersion and sorption processes under equilibrium or rate-controlled conditions has been developed to simulate column performance. Good compliance between experimental and modelling results was obtained.
  • Editor: Southampton: W I T Press
  • Idioma: Inglês

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