Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jcis.2008.04.067
Title: Modeling of the adsorption breakthrough behaviors of Pb2+ in a fixed bed of ETS-10 adsorbent
Authors: Lv, L. 
Zhang, Y.
Wang, K.
Ray, A.K.
Zhao, X.S. 
Keywords: Adsorption
Fixed-bed column
Heavy metal lead
Microporous titanosilicate ETS-10
Two-phase homogeneous diffusion model
Issue Date: 1-Sep-2008
Citation: Lv, L., Zhang, Y., Wang, K., Ray, A.K., Zhao, X.S. (2008-09-01). Modeling of the adsorption breakthrough behaviors of Pb2+ in a fixed bed of ETS-10 adsorbent. Journal of Colloid and Interface Science 325 (1) : 57-63. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jcis.2008.04.067
Abstract: On the basis of experimental breakthrough curves of lead ion adsorption on ETS-10 particles in a fixed-bed column, we simulated the breakthrough curves using the two-phase homogeneous diffusion model (TPHDM). Three important model parameters, namely the external mass-transfer coefficient (kf), effective intercrystal diffusivity (De), and axial dispersion coefficient (DL), were optimally found to be 8.33 × 10-5 m / s, 2.57 × 10-10 m2 / s, and 1.93 × 10-10 m2 / s, respectively. A good agreement was observed between the numerical simulation and the experimental results. Sensitivity analysis revealed that the value of De dictates the model performance while the magnitude of kf primarily affects the initial breakthrough point of the breakthrough curves. © 2008 Elsevier Inc. All rights reserved.
Source Title: Journal of Colloid and Interface Science
URI: http://scholarbank.nus.edu.sg/handle/10635/89452
ISSN: 00219797
DOI: 10.1016/j.jcis.2008.04.067
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