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Kinetic models for the sorption of dye from aqueous solution by wood

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題名: Kinetic models for the sorption of dye from aqueous solution by wood 作者: Ho, Y.S.;McKay, G.

貢獻者: Department of Biotechnology 關鍵詞: wood;dye;kinetics;sorption

日期: 1998

上傳時間: 2009-12-15T05:24:46Z 出版者: Asia University

摘要: The sorption of Basic Blue 69 and Acid Blue 25 onto wood has been studied in terms of pseudo-second order, intraparticle diffusion and pseudo-first order chemical sorption processes. The batch sorption model, based on the assumpt ion of a pseudo-second order mechanism, has been developed to predict the rate constant of sorption, the

equilibrium capacity and initial sorption rate with the effect of initial dye concentration, wood particle size and temperature. An equilibr ium capacity of sorption has been evaluated with the pseudosecond order rate equation as well as by the Langmuir isotherm and operating line method. In addition, an activation energy of sorption has also been determined based on the pseudo-second order rate constants.

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