Prediction of bisolute adsorption isotherms using single-component data for dye adsorption onto carbon

Gordon McKay*, Bushra Al-Duri

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)

Abstract

Equilibrium isotherms have been determined for the adsorption of dyes in solution onto activated carbon. Single-component isotherms were measured for three basic dyes and then the three possible bisolute isotherms from the dyes were determined. Methods of predicting multicomponent dye isotherms were developed and applied using the single-component dye adsorption data to predict the bisolute equilibrium data. A comparison was made between predicted and experimental results. A simplified proximate method and a more rigorous method incorporating a Langmuir isotherm approach failed to give accurate predictions. However, the same rigorous method using a modified Freundlich isotherm proved successful in predicting bisolute isotherm data for a number of two-component dye mixtures adsorbing onto activated carbon.

Original languageEnglish
Pages (from-to)1133-1142
Number of pages10
JournalChemical Engineering Science
Volume43
Issue number5
DOIs
Publication statusPublished - 1988
Externally publishedYes

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