Development of a photo-electrochemical advanced oxidation process using halide ions in wastewater
| Project/Area Number |
26340064
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Environmental engineering and reduction of environmental burden
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| Research Institution | Ryukoku University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 促進酸化処理 / 水酸基ラジカル / 次亜塩素酸 / 電解処理 / 紫外線処理 / pH制御 / 化学酸化処理 / 光化学反応 / 紫外線 / 電解促進酸化 / 光化学反応器 / 次亜ハロゲン酸 / 1,4-ジオキサン |
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| Outline of Final Research Achievements |
An UV/electro-chlorine process using chloride ions in wastewater was developed as a new advanced oxidation process in this study. Hydroxyl radicals and chlorine radicals are produced via a photo-degradation of electrochemically generated hypochlorous acids in this process. The chlorine radicals can reproduce hypochlorous acids, which take part in the OH radical production again. A pH control system without reagent addition was also developed and applied to the UV/electro-chlorine process. As a result, the energy efficiency for organic contaminants removal with pH control was about 1.5 times higher than that without pH control. Moreover, hazardous byproducts formation like chloric acid was significantly restrained. Consequently, the UV/electro-chlorine process was thought to be technically feasible as an easily operable advanced oxidation process.
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Report
(5 results)
Research Products
(7 results)
