| Budget Amount *help |
¥21,060,000 (Direct Cost: ¥16,200,000、Indirect Cost: ¥4,860,000)
Fiscal Year 2016: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Fiscal Year 2015: ¥11,570,000 (Direct Cost: ¥8,900,000、Indirect Cost: ¥2,670,000)
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| Outline of Final Research Achievements |
Plasma generated within oxygen gas bubbles was used for the decomposition of persistent organic compounds in water. The plasma was generated at 21 treatment holes in parallel, and hydrogen peroxide and ozone were selectively generated in each hole. In addition to the OH radicals generated by the plasma directly, OH radicals generated by the reaction involving hydrogen peroxide and ozone were effectively used for the decomposition of organic compounds. This plasma treatment achieved a higher energy efficiency and a higher decomposition rate than other plasma methods. Quantitative estimation of the amount of OH radical in water was also achieved using a chemical probe. Furthermore, the generation mechanism of hydrogen peroxide in plasma with liquid electrode was revealed by a numerical simulation model.
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