| Project/Area Number |
07651152
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
資源開発工学
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| Research Institution | Miyazaki Medical College |
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Principal Investigator |
NAKAJIMA Akira Miyazaki Medical College Fac.Medicine Assist.Prof., 医学部, 助教授 (10041857)
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| Co-Investigator(Kenkyū-buntansha) |
TSURUTA Takehiko Miyazaki Medical College Fac.Medicine Teach.Assist., 医学部, 教務職員 (40236956)
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| Project Period (FY) |
1995 – 1997
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| Project Status |
Completed (Fiscal Year 1997)
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| Budget Amount *help |
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1997: ¥100,000 (Direct Cost: ¥100,000)
Fiscal Year 1996: ¥100,000 (Direct Cost: ¥100,000)
Fiscal Year 1995: ¥1,900,000 (Direct Cost: ¥1,900,000)
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| Keywords | Uranium / Thorium / Plutonium / Heavy metals / Bacillus / Gold / Barks / Persimmon tannin / 銅 / Bacillus / Micrococcus / Arthrobacter |
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| Research Abstract |
Microorganisms having high abilities to accumulate uranium were separated from uranium deposits located in Japan, United States of America, Canada and Australia. These microorganisms were identified as Lactobacillus, Arthrobacter and Bacillus from their characteristics using a video micrometer. These bacteria have also abilities to accumulate thorium and plutonium (important radioactive waste from nuclear reactor). On the other hand, it was found that vegetable biomass, such as immobilized persimmon tannin and barks, could be used for the recovery of uranium and gold in aqueous systems. Furthermore, it was recognized that information on copper accumulation mechanisms of microorganisms could be obtained by using the electron spin resonance method. In future, further study on the mechanisms of heavy metal accumulation by these microbial and vegetable biomass and some practical approach will be conducted.
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