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Adsorption of pollutants from wastewater onto activated carbon based on external mass transfer and pore diffusion

Authors
Publisher
Elsevier Ltd
Publication Date
Volume
22
Issue
3
Identifiers
DOI: 10.1016/s0043-1354(88)90040-1
Keywords
  • Adsorption
  • Carbon
  • Mass Transport
  • Phenol
  • Mercuric Ions
  • Sodium Dodecyl Sulphate
  • P-Chlorophenol

Abstract

Abstract The adsorption of four pollutants in aqueous solutions onto activated carbon has been studied. The following solutes have been investigated, phenol, p-chlorophenol, sodium dodecyl sulphate and mercuric ions. The kinetics were studied using an agitated batch adsorber and a model was proposed, based on external mass transfer and pore diffusion. The model presented has a rapid analytical solution and is based on the assumption of a pseudo-irreversible (rectangular) isotherm.

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