Development of an aquatic environment restoration system for closed water areas, whose underwater light environment is reduced in quality due to water contamination
| Project/Area Number |
23780249
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Irrigation, drainage and rural engineering/Rural planning
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| Research Institution | Kyushu University |
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Principal Investigator |
HARADA MASAYOSHI 九州大学, (連合)農学研究科(研究院), 准教授 (80325000)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 有機汚濁 / 無酸素化 / 水環境改善 / 溶存酸素 / LED / 光合成 / 閉鎖性水域 / ＬＥＤ / 貧酸素化 / 水質予測モデル / 水環境動態解析 |
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| Research Abstract |
The development of water environment improvement technology using the activation of algae photosynthesis via LED light irradiation was conducted, with the aim of directly contributing to the environmental restoration in closed water areas affected by deteriorating water environment with oxygen deficiency or anoxiation due to organic contamination. This involved an irradiation experiment using underwater LED lights in an experimental water tank, with the aim of understanding the photosynthesis activation characteristics of algae with respect to the mixed wavelength lights of blue wavelength and red wavelength. As a result, to exhibit improvement effects for a DO environment in the short term, irradiation must be performed with an R/B ratio of approximately 1/4, which is then increased to approximately 2 to inhibit the proliferation of phytoplankton and avoid eutrophication by LED irradiation.
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Report
(4 results)
Research Products
(21 results)
