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首页> 外文期刊>Water, Air, and Soil Pollution >CELL-ASSOCIATED ADSORPTION OF THORIUM OR URANIUM FROM AQUEOUS SYSTEM USING VARIOUS MICROORGANISMS
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CELL-ASSOCIATED ADSORPTION OF THORIUM OR URANIUM FROM AQUEOUS SYSTEM USING VARIOUS MICROORGANISMS

机译：多种微生物对水系统中T或铀的细胞吸附吸附

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摘要

The cell-associated adsorption of thorium or uranium from the solution containing each metal only at pH 3.50 using various microorganisms was examined. Among the species tested, high thorium adsorption abilities were exhibited by strains of the gram-positive bacteria Arthrobacter nicotianae IAM12342, Bacillus megaterium IAM1166, B. Subtilis IAM1026, Micrococcus luteus IAM1056, Rhodococcus erythropolis IAM1399, and Streptomyces levoris HUT6156. And high uranium adsorption abilities were found in some gram-positive bacterial strains S. albus HUT6047, S. levoris HUT6156, and A. nicotianae IAM12342. Among these highly efficient thorium and uranium adsorbing microorganisms, S. levoris, which could adsorb the largest amount of uranium from the aqueous solution at pH 3.50, could adsorb about 383 μmol thorium and 390 μmol uranium per gram dry weight of microbial cells from the solution containing thorium or uranium at pH 3.50. The amount and time course of thorium adsorbed were almost unaffected by co-existing uranium; however, the adsorption of thorium was faster when carried out after the adsorption of uranium. Thorium adsorption also became faster when uranium was added after thorium adsorption. The effect of pH on thorium adsorption was also discussed.
机译：使用各种微生物，检查了仅在pH 3.50时，细胞与or或铀从含每种金属的溶液中的吸附作用。在所测试的物种中，革兰氏阳性烟碱杆菌IAM12342，巨大芽孢杆菌IAM1166，枯草芽孢杆菌IAM1026，黄曲霉微球菌IAM1056，红球红球菌IAM1399和左旋链霉菌I菌株表现出高的adsorption吸附能力。在某些革兰氏阳性细菌菌株S. albus HUT6047，S。levoris HUT6156和A. nicotianae IAM12342中发现了高的铀吸附能力。在这些高效的adsorb和铀吸附微生物中，S。levoris可以从pH 3.50的水溶液中吸附最大量的铀，每克干重的微生物细胞可以吸附约383μmoland和390μmol铀。含有pH值为3.50的th或铀。共存的铀几乎不影响th的吸附量和时间过程。但是，在吸附铀后进行carried的吸附较快。在th吸附后添加铀时，adsorption吸附也变得更快。还讨论了pH对th吸附的影响。

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