Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/148123
Title: ADSORPTION OF CONTAMINANTS BY MAGNETIC SORBENTS
Authors: LIM SOH FONG
Keywords: alginate encapsulated magnetic sorbent; zirconium based encapsulated magnetic sorbent; sorption; equilibrium; kinetics; modeling
Issue Date: 10-Dec-2008
Citation: LIM SOH FONG (2008-12-10). ADSORPTION OF CONTAMINANTS BY MAGNETIC SORBENTS. ScholarBank@NUS Repository.
Abstract: In this study, novel magnetic sorbents, alginate encapsulated magnetic sorbent and zirconium based magnetic sorbent, have been successfully fabricated to remove metal contaminants such as copper and arsenic. The fabrication parameters of the sorbents were studied and optimized by statistically based design of experiments via response surface model. Using the novel sorbents, adsorption of the metal ions onto the sorbents is elucidated thoroughly by qualitative and quantitative methods: experimental studies, instrumental analyses, mathematical modeling, and simulation. Complete characterizations of the sorbent have been conducted by BET, XRD, ICP, SEM, FT-IR, XPS, etc. Based on both experimental results and instrumental analyses, the adsorption mechanisms of copper and arsenic onto the sorbents have been proposed.
URI: http://scholarbank.nus.edu.sg/handle/10635/148123
Appears in Collections:Ph.D Theses (Open)

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