| Project/Area Number |
10450195
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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 | 一般 |
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| Research Field |
Civil and environmental engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
OHGAKI Shinichiro Univ. of Tokyo, Dept. of Urban Eng., Professor, 大学院・工学系研究科, 教授 (20005549)
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| Co-Investigator(Kenkyū-buntansha) |
OTAKI Masahiro Ochanomizu Univ., Dept. of Human Environmental Sci., Asoc. Professor, 人間文化研究科, 助教授 (70272367)
NAGAOKA Hiroshi Musashi Inst. of Tech., Dept. of Civil Eng., Asoc. Prof., 工学部, 助教授 (90207986)
FURUMAI Hiroshi Univ. of Tokyo, Dept. of Urban Eng., Professor, 大学院・工学系研究科, 教授 (40173546)
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| Project Period (FY) |
1998 – 1999
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| Project Status |
Completed (Fiscal Year 1999)
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| Budget Amount *help |
¥6,500,000 (Direct Cost: ¥6,500,000)
Fiscal Year 1999: ¥3,100,000 (Direct Cost: ¥3,100,000)
Fiscal Year 1998: ¥3,400,000 (Direct Cost: ¥3,400,000)
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| Keywords | Advanced Oxdation / Ultra biolet treatment / Photocatalytic treatment / Natural Organic Matter / Reaction rate / Bacterial Regrowth Potential / Flowsitemetry / 紫外線照射処理 / 自然由来有機物質 / 中圧紫外線ランプ照射処理 / 紫外吸光度 / THM生成能 |
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| Research Abstract |
In this study, photocatalytic reaction was investigated as an advanced oxidation water treatment. Titanium dioxide was coated on a glass and used as a catalyst. Low pressure mercury lamp and black light lamp, which has similar wavelength to sun light, were used as light sources. The decomposition rate of phenol and methylene blue under various condition was determined. The role of flow condition, light intensity and specific catalyst area was quantitatively evaluated. The reaction rate followed Langmure-Hinshelwood equation, and the factors above was correlated to the parameters in the equation. Different types ofTiO2 was also tested, and the role of pH was estimated and explained from the surface charge of catalyst.
GC/MS was applied to the evaluation of Natural Organic Matter (NOM). Bacterial Regrowth potential was developed as a evaluation method of NOM. Flowsitemetry was applied to counting the bacteria, and sonication was essential as pretreatment.
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