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Title: Cadmium biosorption by Sphingomonas paucimobilis biomass
Authors: J. Tangaromsuk
P. Pokethitiyook
M. Kruatrachue
E. S. Upatham
Mahidol University
Keywords: Agricultural and Biological Sciences;Chemical Engineering;Immunology and Microbiology
Issue Date: 17-Jun-2002
Citation: Bioresource Technology. Vol.85, No.1 (2002), 103-105
Abstract: Among microorganisms isolated in Bangkok, the gram-negative bacterium Sphingomonas paucimobilis exhibited the greatest cadmium tolerance. It was able to survive in the medium containing cadmium as high as 200 mg/l. However, concentrations of cadmium at 25-200 mg/l inhibited its growth. The biosorption properties for cadmium of this bacterial biomass and the effects of environmental factors (i.e., biosorbent type, initial pH and biosorbent concentration) on the cadmium biosorption were explored. The results showed that the cadmium removal capacity of living cells was markedly higher than that of nonliving cells. Cadmium biosorption by S. paucimobilis biomass was also affected by the initial pH and biosorbent concentration. Copyright © 2002 Elsevier Science Ltd.
ISSN: 09608524
Appears in Collections:Scopus 2001-2005

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