| 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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| 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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