Modeling of copper ion removal from aqueous solutions using modified silica beads

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Silica beads, containing 2-hydroxy-5-nonylacetophenoncoxime (LIX84) were prepared in order to examine the removal of copper ions from aqueous waste solutions. The process for copper ion removal using the modified silica beads was mathematically modeled using both a nonequilibrium model and an equilibrium model. The external mass transfer coefficient and effective diffusivity inside the bead pore were estimated by matching the experimental data and predicted values from the model, and the results were compared. The results of the two models were similar and in good agreement because of the relatively faster reaction rate than mass transfer rate. Sensitivity analyses showed that the external mass transfer has more influence on the copper ion removal system because of hydrophobic effects.
Publisher
TAYLOR & FRANCIS INC
Issue Date
2000
Language
English
Article Type
Article
Keywords

ACTIVE LIQUID MEMBRANES; INORGANIC SUPPORTS; SURFACE-DIFFUSION; CHEMICAL-REACTION; WATER INTERFACE; MASS-TRANSFER; ADSORPTION; EXTRACTION; TRANSPORT

Citation

CHEMICAL ENGINEERING COMMUNICATIONS, v.181, pp.37 - 55

ISSN
0098-6445
DOI
10.1080/00986440008912814
URI
http://hdl.handle.net/10203/201867
Appears in Collection
CBE-Journal Papers(저널논문)
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