Modelling of multicomponent equilibrium for the adsorption of basic dyes onto bagasse pith

B. Al-Duri*, Y. Magdy, R. Saad, G. McKay

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

The adsorption of three basic dyes from water onto bagasse pith has been studied. The dyes used were Basic Blue 3, Basic Red 22 and Basic Yellow 21 and single and multicomponent equilibrium isotherms were determined. The three single, three binary and one ternary system isotherms were analysed. Predictive and correlative techniques have been developed and used to produce theoretical multicomponent equilibrium isotherm data which are then quantitatively compared with experimental data. This procedure enables a qualitative and quantitative appraisal of the various equilibrium models to be compared. The models used include the Langmuir and Redlich-Peterson isotherms in extended and modified forms; the modified form incorporates an interaction factor to account for multisolute phenomena. An extended Freundlich isotherm yielded the most accurate method of predicting experimental binary system equilibrium data.

Original languageEnglish
Pages (from-to)247-254
Number of pages8
JournalProcess Safety and Environmental Protection
Volume69
Issue number4
Publication statusPublished - Nov 1991
Externally publishedYes

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