| Project/Area Number |
20510085
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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 |
Environmental technology/Environmental materials
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| Research Institution | Ube National College of Technology |
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Principal Investigator |
TAKEUCHI Masami Ube National College of Technology, 物質工学科, 教授 (30043889)
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| Co-Investigator(Kenkyū-buntansha) |
MURAKAMI Sadaaki 広島商船高等専門学校, 校長 (00035065)
YAMASAKI Hirohito 宇部工業高等専門学校, 物質工学科, 教授 (20300618)
MIYAKOSHI Akihiko 旭川工業高等専門学校, 物質化学工学科, 教授 (10249724)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2008: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 環境技術 / 環境材料 / IT工業排水 / 亜・超臨界水 |
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| Research Abstract |
This study investigated the disposal of wastewater containing ammonium ion, and nitrate ion, by sub- and super-critical water in the temperature range between 300-380 ℃ for 1 hour. The results suggested that more than 90% of both ammonium ion and nitrate ion were able to be removed by subcritical water treatment at 320℃ for 1 hour. To decrease the reaction temperature we tried using a catalysis, and suggested that the catalysis prepared from vanadium and molybdenum was suitable for this disposal. Furthermore, the catalysis reformed by a hydrogen reduction after preparing by the Sol-Gel method showed a significant improvement in removal rate and also suppressed the nitrite at the low level.
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