Biosorption of Cadmium Ions Using a Photosynthetic Bacterium,Rhodobacter sphaeroides S and a Marine Photosynthetic Bacterium,Rhodovulum sp. and Their Biosorption Kinetics
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概要
- 論文の詳細を見る
We examined the biosorption characteristics of cadmium ions onto a photosynthetic bacterium, Rhodobacter sphaeroides S and a marine photosynthetic bacterium Rhodovulum sp. PS88 in a batch culture system. Both photosynthetic bacteria are capable of cadmium removal with 30 g/l sodium chloride and divalent cations (Mg^<2+> and Ca^<2+>) in the culture medium. In particular, the strain PS88 shows a high removal ratio and high specific removal rate of cadmium ions from the culture medium under aerobic-dark (heterotrophic) and anaerobic-light (photoheterotrophic) conditions. The adsorption of cadmium onto strains PS88 and S is dependent on the cadmium concentration, and follows the Freundlich adsorption isotherm. In addition, biosorption isotherms for cadmium show that the strain PS88 exhibits higher values of the empirical constant for the cadmium adsorption capacity, K_f, than that of the strain S under both aerobic-dark (K_f=17.44) and anaerobic-light (K_f=1.270) conditions.
- 社団法人日本生物工学会の論文
- 2003-04-25
著者
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Noparatnaraporn Napawarn
カセサート大
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Noparatnaraporn N.
タイ・カセサート大・理・微生物
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Watanabe M
Foods And Liquors Research Laboratories Kyowa Hakko Kogyo Co. Ltd.
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WATANABE MASANORI
Materials Science and Engineering, Graduate School of Engineering, Hiroshima Kokusai Gakuin Universi
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SASAKI KEN
Materials Science and Engineering, Graduate School of Engineering, Hiroshima Kokusai Gakuin Universi
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Watanabe M
Graduate School Of Engineering Hiroshima Kokusai Gakuin University
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Sasaki K
Graduate School Of Engineering Hiroshima Kokusai Gakuin University
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KAWAHARA KOUJIRO
Materials Science and Engineering,Graduate School of Engineering,Hiroshima Kokusai Gakuin University
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NOPARATNARAPORN NAPAVARN
Research and Development Institute,Kasetsart University
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Kawahara Koujiro
Materials Science And Engineering Graduate School Of Engineering Hiroshima Kokusai Gakuin University
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Noparatnaraporn N
Department Of Microbiology Kasetsart University
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Sasaki Ken
Material Science And Engineering Graduate School Of Engineering
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Watanabe Masanori
Materials Science And Engineering Graduate School Of Engineering Hiroshima Kokusai Gakuin University
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