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Kinetic Study of Lead Adsorption to Composite Biopolymer Adsorbent

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/44067

Title: Kinetic Study of Lead Adsorption to Composite Biopolymer Adsorbent
Authors: Seki, Hideshi Browse this author →KAKEN DB
Suzuki, Akira Browse this author
Keywords: diffusivity
lead
composite biopolymer adsorbent
humic acid
alginic acid
Issue Date: 15-Mar-1999
Publisher: Elsevier
Journal Title: Journal of Colloid and Interface Science
Volume: 211
Issue: 2
Start Page: 375
End Page: 379
Publisher DOI: 10.1006/jcis.1998.6000
PMID: 10049553
Abstract: A kinetic study of lead adsorption to composite biopolymer adsorbents was carried out. Spherical and membranous adsorbents containing two kinds of biopolymers, humic acid and alginic acid, were used for lead adsorption in dilute acidic solutions. The shrinking core model derived by Rao and Gupta was applied to describe the rate process of lead adsorption to spherical adsorbents (average radii of 0.12, 0.15, and 0.16 cm). Furthermore, the shrinking core model was modified and adapted for the description of the rate process of lead adsorption to membranous adsorbent (an average thickness of 0.0216 cm). The adsorption rate process for the both cases was well-described and the average apparent lead diffusion coefficients of about 6 × 10-6 and 7 × 10-6 cm2・s-1 were found for the spherical and membranous adsorbents, respectively.
Type: article (author version)
URI: http://hdl.handle.net/2115/44067
Appears in Collections:水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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