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Biosorption of Rhodamine B onto Waste Activated Sludge: Equilibrium and Kinetic Modelling
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 Title & Authors
Biosorption of Rhodamine B onto Waste Activated Sludge: Equilibrium and Kinetic Modelling
Lee Chang-Han; Ahn Kab-Hwan;
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 Abstract
The biosorption of dye, Rhodamine B(Rh-B), onto waste activated sludge was investigated. The biosorption capacity and contact time were shown as a simulation of dye adsorption equilibrium and kinetics models. We observed that biosorption of Rh-B occurred rapidly less than 4 hr. These experimental data could be better fitted by a pseudo-second-order rate equation than a pseudo-first-order rate equation. The equilibrium dependence between biosorption capacity and initial concentration of Rh-B was estimated and it was found that the equilibrium data of biosorption were fitted by four kinds of model such as Langmuir, Freundlich, Redlich-Peterson, and Koble-Corrigan model. The average percentage errors, , observed between experimental and predicted values by above each model were , respectively, indicating that Freundlich and Redlich-Peterson model could be fitted more accrately than other models.
 Keywords
Waste activated sludge;Equilibrium;Kinetics;Dye;Rhodamine B;Biosorption ;
 Language
Korean
 Cited by
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