2017 Fiscal Year Final Research Report
Energy saving of pulsed power water purification treatment by power regeneration circuit
| Project/Area Number |
15K05927
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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 |
Power engineering/Power conversion/Electric machinery
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| Research Institution | Ibaraki University |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 排水処理 / 難生分解性物質 / 微生物 / 有害物質 / 省エネルギー |
|---|
| Outline of Final Research Achievements |
Decomposition of refractory chemicals using advanced oxidation process was investigated using a high voltage pulse generating circuit and a creeping discharge reactor immersed in water. The circuit configuration was examined for energy saving and synchronous operation of many semiconductors, and got a sufficient electric output and sufficient oxidative decomposition with low average power consumption.
The performance of the system is examined considering the influence on the microbes in the reaction vessel so as to convert waste water into biologically safe water. Using discharges of peak power of 600 kW and average power of 90 W for 5 to 30 minutes, the methylene blue pigment oxidatively decomposed to a substance that can be biodegraded by microbes. The number of heterotrophic bacteria during the discharge treatment did not decrease greatly when the treatment time was within 20 minutes, and the viable cell count increased by two orders of magnitude in 5 days after the treatment.
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| Free Research Field |
パルスパワー工学
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