Adsorption characteristics of metal ions by CO2-fixing Chlorella sp HA-1

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Single and binary metal systems were employed to investigate the removal characteristics of Pb2+, Cu2+, Cd2+, and Zn2+ by Chlorella sp. HA-1 that were isolated from a CO2 fixation process. Adsorption test of single metal systems showed that the maximum metal uptakes were 0.767 mmol Pb2+, 0.450 mmol Cd2+, 0.334 mmol Cu2+ and 0.389 mmol Zn2+ per gram of dry cell. In the binary metal systems, the metal ions on Chlorella sp. HA-1 were adsorbed selectively according to their adsorption characteristics. Pb2+ ions significantly inhibited the adsorption of Cu2+, Zn2+, and Cd2+ ions, while Cu2+ ions decreased remarkably the metal uptake of Cd2+ and Zn2+ ions. The relative adsorption between Cd2+ and Zn2+ ions was reduced similarly by the presence of the other metal ions. (C) 2009 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
Publisher
ELSEVIER SCIENCE INC
Issue Date
2009-05
Language
English
Article Type
Article
Keywords

NICKEL(II) IONS; BIOSORPTION; LEAD; ZINC; FIXATION; REMOVAL; SYSTEMS; ALGAE; CO2

Citation

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v.15, no.3, pp.354 - 358

ISSN
1226-086X
DOI
10.1016/j.jiec.2008.12.007
URI
http://hdl.handle.net/10203/100487
Appears in Collection
CBE-Journal Papers(저널논문)
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