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Language: English

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received August 27, 2008
Accepted September 30, 2008

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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Metal recovery by aged beads prepared using cell-suspension from the waste of beer fermentation broth

Seong Bok Choi Joong Kon Park^†

Department of Chemical Engineering, Kyungpook National University, Daegu 702-701, Korea

parkjk@knu.ac.kr

Korean Journal of Chemical Engineering, March 2009, 26(2), 457-461(5), 10.1007/s11814-009-0078-x

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Abstract

Lead, copper, and cadmium were adsorbed onto aged calcium alginate beads containing cell-suspension from the waste of beer fermentation broth. Beads prepared by adding 0.6% (w/v) sodium alginate into the cell suspension from the waste of beer fermentation broth and making the cell suspension drop into the 1% (w/v) calcium alginate solution were stored in the 1% (w/v) calcium chloride solution for 1 year. The specific metal uptake of the aged cell-suspension immobilized bead was 312 mg Pb^(2+), 158 mg Cu^(2+), and 112 mg Cd^(2+)/g bead dry weight at pH 7.5 of the metal solution, respectively. The relation between the specific metal uptake by the aged cell-suspension immobilized beads and the equilibrium metal concentration was nonlinearly regressed and well described by the Freundlich isotherm. The specific cadmium uptake capacity of aged cell-suspension immobilized beads was between the specific cadmium uptake capacities of commercial beads Duolite GT-73 and Amberite IRA-400 and higher than those of the fresh Saccharomyces cerevisiae ATCC 834 and Saccharomyces cerevisiae ATCC 24858 immobilized beads.

Keywords

Biosorption of Heavy Metals S. cerevisiae Cell Immobilized Bead Cell Suspension Waste of Beer Fermentation Broth

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