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Received April 21, 2004
Accepted November 16, 2004
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Adsorption of Heavy Metals by Brewery Biomass

Department of Environmental Engineering, Chonnam National University, 300 Yongbong-dong, Buk-ku, Gwang-ju 500-757, Korea 1Jeollanam-Do Institute of Health and Environment, Nongseong 2-dong, Seo-ku, Gwang-ju 502-202, Korea 2Department of Chemical Engineering, Chungnam National University, Daejeon 305-764, Korea 3Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea
sjkim@chonnam.ac.kr
Korean Journal of Chemical Engineering, January 2005, 22(1), 91-98(8), 10.1007/BF02701468
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Abstract

In this work, biosorption of lead, copper and cadmium by waste brewery yeast has been studied. The adsorption capacity for lead, copper and cadmium on the biomass increased with the increasing temperature and the maximum uptakes were 0.465 mmolPb/g (96.4 mg/g), 0.769 mmolCu/g (48.9 mg/g) and 0.127 mmolCd/g (14.3 mg/g) at 308 K. The Langmuir isotherm, favorable type, and the pseudo second-order kinetic model represent our experimental data very well. The heat of biosorption was evaluated from the Langmuir isotherm equation, and the biosorption of lead, copper and cadmium was endothermic reaction.

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