Biosorption of Lead (Pb²+) from Aqueous Solution by Rhodotorula aurantiaca
2004
Cho, D.H. (University of Seoul, Seoul, Republic of Korea) | Yoo, M.H. (University of Seoul, Seoul, Republic of Korea) | Kim, E.Y. (University of Seoul, Seoul, Republic of Korea), E-mail: eykim@uos.ac.kr
The aim of this work was to investigate the adsorption isotherm and kinetic model for the biosorption of lead (Pb²+) by Rhodotorula aurantiaca and to examine the environmental factors for this metal removal. Within five minutes of contact, Pb²+ sorption reached nearly 86% of the total Pb²+ sorption. The optimum initial pH value for removal of Pb²+ was 5.0. The percentage sorption increased steeply with the biomass concentration up to 2 g/l and thereafter remained more or less constant.
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