Kinetics of a reactive dye adsorption onto dolomitic sorbents

  • Walker G
  • Hansen L
  • Hanna J
 et al. 
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Abstract

A novel wastewater treatment technique has been investigated, for reactive dye removal, in batch kinetic systems. These experimental studies have indicated that charred dolomite has the potential to act as an adsorbent for the removal of Brilliant Red reactive dye from aqueous solution. The effect of initial dye concentration, adsorbent mass:liquid volume ratio, and agitation speed on dye removal have been determined with the experimental data mathematically described using empirical external mass transfer and intra-particle diffusion models. The experimental data show conformity with an adsorption process, with the removal rate heavily dependent on both external mass transfer and intra-particle diffusion. © 2002 Elsevier Science Ltd. All rights reserved.

Author-supplied keywords

  • Adsorption
  • Dolomite
  • Dyestuff
  • Kinetics
  • Wastewater

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Authors

  • G. M. Walker

  • L. Hansen

  • J. A. Hanna

  • S. J. Allen

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