Removal of organic pollutants from industrial wastewater: performance evaluation of inorganic adsorbents based on pillared clays

This work reports the application of a natural clay and an alumina-pillared clay as adsorbents for the removal of a basic dye, Methylene Blue, from aqueous solutions. The intercalation and pillaring processes improve the adsorption capacity of the montmorillonite. The adsorption kinetics of the dye...

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Bibliographic Details
Published in:Desalination and water treatment 2012-02, Vol.39 (1-3), p.316-322
Main Authors: Assis, F.C.C., Albeniz, S., Gil, A., Korili, S.A., Trujillano, R., Vicente, M.A., Marçal, L., Saltarelli, M., Ciuffi, K.J.
Format: Article
Language:English
Subjects:
Dyes adsorption
Kinetics and equilibrium adsorption modeling
Methylene blue
Organic pollutants
Pillared clay adsorbents
Wastewaters
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Summary:This work reports the application of a natural clay and an alumina-pillared clay as adsorbents for the removal of a basic dye, Methylene Blue, from aqueous solutions. The intercalation and pillaring processes improve the adsorption capacity of the montmorillonite. The adsorption kinetics of the dye has been studied in terms of pseudo-first-order and pseudo-second-order models. The equilibrium data are mathematically modelled using Freundlich, Langmuir and Sips isotherm adsorption models.
ISSN:1944-3986
DOI:10.5004/dwt.2012.3354