| Project/Area Number |
23406003
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 海外学術 |
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| Research Field |
Environmental technology/Environmental materials
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| Research Institution | Kitasato University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
YOSHIDA Takahiko 旭川医科大学, 医学部, 教授 (90200998)
高田 礼子 聖マリアンナ医科大学, 医学部, 教授 (30321897)
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| Co-Investigator(Renkei-kenkyūsha) |
TAKATA Ayako 聖マリアンナ医科大学, 医学部, 教授 (30321897)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥19,370,000 (Direct Cost: ¥14,900,000、Indirect Cost: ¥4,470,000)
Fiscal Year 2013: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2012: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2011: ¥9,880,000 (Direct Cost: ¥7,600,000、Indirect Cost: ¥2,280,000)
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| Keywords | 慢性ヒ素中毒 / ヒ素 / 無毒化 / 無毒化ヒ素 / アルセノベタイン / 飲料水 / 汚染土壌 / 無毒化処理 / ヒ素化学兵器 / ジメチルアルシン酸 / 安全性試験 / 二酸化チタン / 触媒サイクル / ヒ素汚染 |
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| Research Abstract |
Chronic arsenic poisoning, currently, inorganic arsenic (iAs) contamination of drinking water causes the victim of more than 50 million has been identified in Asia. We have developed a synthesis technology simple to detoxification process the iAs is a causative agent of arsenic poisoning. Establishing the non-toxicity of arsenobetaine (AsB) on scientific and legal grounds will expedite the application of arsenic detoxification in many areas as a safe and eco-friendly way to treat iAs in the natural environment. The presence of titanium oxide photocatalyst, acetic acid, by light irradiation, the iAs is converted to AsB. Examination of the behavior in seawater of AsB as ocean dumping model, was present in a stable manner to reach the (2ppb) arsenic concentration originally present in seawater within 24 hours. It was able to ocean dumping of toxic arsenic and establishment of low- cost process of ultimate propose a possible conditions.
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