NDLI: Kinetics and Thermodynamics of Lead(II) and Copper(II) Adsorption onto Oil Shale Fly Ash

Content Provider	IEEE Xplore Digital Library
Author	Jingru Bai Qing Wang Yingjun Yang Xiaohui Guan
Copyright Year	2010
Abstract	The kinetics and thermodynamics characteristics of Pb(II) and Cu(II) adsorption onto fly ash of a oil shale-fired power plant was investigated by using batch adsorption method. The results showed that Langmuir and Freundlich adsorption isotherms were applicable to the adsorption process, while Freundlich equation is more applicable. The mechanistic steps of the adsorption process was studied through data fitting of the experimental data using the equation of Lagergren pseudo-first-order kinetics, the pseudo-second-order kinetics, and the intra-particle diffusion model. All the three equations were found applicable in initial stage of this study, and the absorptions of Pb(II) and Cu(II) onto fly ash from oil shale-fired CFB was in accordance of the pseudo-2nd-order reaction kinetics. The absorption characteristics of metal ions on oil shale fly ash were controlled by both film diffusion and particle diffusion. Thermodynamic analysis showed that the processes of oil shale fly ash adsorption Pb(II) and Cu(II) are endothermic reaction and a spontaneous process.
Starting Page	1
Ending Page	4
File Size	363593
Page Count	4
File Format	PDF
ISBN	9781424447121
ISSN	21517622
DOI	10.1109/ICBBE.2010.5517343
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-18
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Thermodynamics Fly ash Absorption Combustion Kinetic theory Fluidization Metals industry Mining industry Petroleum Equations
Content Type	Text
Resource Type	Article

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