Application of ultraviolet light-emitting diodes to suppress microorganisms in water
| Project/Area Number |
26289181
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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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 |
Oguma Kumiko 東京大学, 先端科学技術研究センター, 准教授 (00361527)
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| Co-Investigator(Kenkyū-buntansha) |
春日 郁朗 東京大学, 大学院工学系研究科(工学部), 准教授 (20431794)
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| Co-Investigator(Renkei-kenkyūsha) |
LOHWACHARIN Jenyuk 東京大学, 大学院工学系研究科, 特任助教 (60709517)
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥16,250,000 (Direct Cost: ¥12,500,000、Indirect Cost: ¥3,750,000)
Fiscal Year 2016: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2015: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2014: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
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| Keywords | 水処理 / 消毒 / 紫外線 / 発光ダイオード（LED） / 水系感染症 / 発光ダイオード / LED / バイオフィルム / 生物膜 |
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| Outline of Final Research Achievements |
This study aimed to propose the application of ultraviolet light-emitting diodes (UV-LED) for water disinfection and elucidate the effectiveness and challenges of the technology. UV-LEDs with different peak emissions were applied to various microorganisms to examine the dose-response properties. UV-LED module designed for point-of-use (POU) of water or point-of-entry (POE) to buildings were evaluated by lab-scale experiments and a field test. Furthermore, field survey in Hanoi, Vietnam, was conducted to examine the feasibility and local needs for UV-LED water treatment at household level. This study demonstrated the effectiveness and technical challenges of UV-LED to be applied for water treatment and developed fundamental knowledge base for module development and practical applications.
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Report
(5 results)
Research Products
(68 results)
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[Journal Article] Pepper mild mottle virus as an indicator and a tracer of fecal pollution in water environments: Comparative evaluation with wastewater-tracer pharmaceuticals in Hanoi, Vietnam2015
Author(s)
Keisuke Kuroda, Norihide Nakada, Seiya Hanamoto, Manami Inaba, Hiroyuki Katayama, An Thuan Do, Tran Thi Viet Nga, Kumiko Oguma, Takeshi Hayashi, Satoshi Takizawa
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Journal Title
Science of the Total Environment
Volume: 506-507
Pages: 287-298
DOI
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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