A kinetic study of dye sorption by biosorbent waste product pith

Y. S. Ho, G. McKay*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

328 Citations (Scopus)

Abstract

The sorption of two dyes, namely, Basic Red 22 and Acid Red 114 onto pith has been studied in terms of pseudo-second-order, pseudo-first-order sorption and intraparticle diffusion processes thus comparing chemical sorption and diffusion sorption processes. The pseudo-second-order model, based on the assumption of a pseudo-second-order mechanism, has been developed to predict the rate constant of sorption, the equilibrium capacity and initial sorption rate as a function of the effect of initial dye concentration, pith particle size, pith dose and temperature. Copyright (C) 1999 Elsevier Science B.V.

Original languageEnglish
Pages (from-to)171-193
Number of pages23
JournalResources, Conservation and Recycling
Volume25
Issue number3-4
DOIs
Publication statusPublished - 1 Mar 1999
Externally publishedYes

Keywords

  • Dye
  • Kinetics
  • Pith
  • Sorption

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