2009 Fiscal Year Final Research Report
Arsenic removal from contaminated soil by simultaneous use of a dissimilatory arsenate-reducing bacterium and naturally occurring mediators.
Project/Area Number |
20710063
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Single-year Grants |
Research Field |
Environmental technology/Environmental materials
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Research Institution | National Institute for Environmental Studies |
Principal Investigator |
YAMAMURA Shigeki National Institute for Environmental Studies, 水土壌圏環境研究領域, 研究員 (90414391)
|
Project Period (FY) |
2008 – 2009
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Keywords | 環境修復技術 / 土壌汚染 / ヒ素 / ヒ酸塩還元 / メディエーター / 嫌気性微生物 |
Research Abstract |
We investigated a novel bioremediation strategy for arsenic-contaminated soil via microbial arsenic mobilization. The results indicate that solid phase arsenate reduction by a dissimilatory arsenate-reducing bacterium is vital for effective arsenic removal from solid phase. Also, vitamin B_2 could significantly enhance arsenic mobilization as a redox active mediator, suggesting that simultaneous use of dissimilatory arsenate-reducing bacteria and vitamin B_2 can be an effective strategy for remediation of arsenic-contaminated soil.
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