한국환경과학회지 (Journal of Environmental Science International)
- 제4권5호
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- Pages.141-141
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- 1995
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- 1225-4517(pISSN)
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- 2287-3503(eISSN)
Saccharomyces uvarum에 의한 중금속 생체흡착에 관한 연구
Biosorption of Heavy Metals by Saccharomyces uvarum
- Ahn, Kab-Hwan (Dept of Environmental science & Technology) ;
- Suh, Kuen-Hack (Dept of Chemical Engineering, National Fisheries Unversity of Pusan)
- 발행 : 1995.12.01
초록
The waste biomass of Sacchromyces uvarum, used in fermentation industries to produce ethanol, were studied for their ability to absorb various heavy metal ions. Heavy metal ions studied in this research were Cd, Co, Cr, Cu, Ni and Pb. The order of the sorption capacity was Pb>Cu>Co=Cr=Cd>Ni. The living Sacchromyces uvarum exhibited higher metal-uptake capacity than the dead Sacchromyces uvarum. After we compare the uptake capacity of the Sacchromyces uvarum for individual metal ions with for a mixture of them, the following was observed: in the mixed heavy metal solution the uptake capacity was decreased than the one heavy metal solution. The selective uptake was observed when all . the heavy metal ions were dissolved in a mixed solution. The adsorption isotherm modelling was decribed with the Langmuir and Freundlich model. The results were in good agreement with the Langmuir model.