Comparison of optimised isotherm models for basic dye adsorption by kudzu

  • Allen S
  • Gan Q
  • Matthews R
 et al. 
  • 105


    Mendeley users who have this article in their library.
  • 244


    Citations of this article.


This study assesses the use of dried (5% w/w moisture) kudzu (Peuraria lobata ohwi) as an adsorbent medium for the removal of two basic dyes, Basic Yellow 21 and Basic Red 22, from aqueous solutions. The extent of adsorption was measured through equilibrium sorption isotherms for the single component systems. Equilibrium was achieved after 21 days. The experimental isotherm data were analysed using Langmuir, Freundlich, Redlich-Peterson, Temkin and Toth isotherm equations. A detailed error analysis was undertaken to investigate the effect of using different error criteria for the determination of the single component isotherm parameters. The performance of the kudzu was compared with an activated carbon (Chemviron F-400). Kudzu was found to be an effective adsorbent for basic dye colour removal, though its capacity for colour removal was not as high as an activated carbon, the potential appeared to exist to use it as an alternative to activated carbon where carbon cost was prohibitive. © 2002 Elsevier Science Ltd. All rights reserved.

Author-supplied keywords

  • Adsorption
  • Basic dye
  • Isotherms
  • Kudzu

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


  • Stephen J. Allen

  • Quan Gan

  • Ronan Matthews

  • Pauline A. Johnson

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free