Kinetics of a reactive dye adsorption onto dolomitic sorbents

G. M. Walker, L. Hansen, J. A. Hanna, S. J. Allen

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish
Pages (from-to)2081-2089
Number of pages9
JournalWater Research
Volume37
Issue number9
DOIs
Publication statusPublished - May 2003
Externally publishedYes

Keywords

  • Adsorption
  • Dolomite
  • Dyestuff
  • Kinetics
  • Wastewater

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