| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Outline of Final Research Achievements |
The rate of sonochemical degradation of hazardous organic compounds such as aromatic compounds and dyes was tried to enhance, where the degradation mechanism and the physicochemical properties of acoustic cavitation bubbles were discussed. It was found that aromatic compounds in water were tended to accumulate the bubble interface region in the presence of inorganic salts and thus degraded quickly, because OH radical reactions and pyrolytic reactions more quickly proceeded in comparison with the bulk solution region. On the other hand, it was also suggested that the addition of inorganic salts acted as negative effects for the degradation of aromatic compounds: the number of bubbles was reduced by the addition of inorganic salts. In addition, the effect of a partition plate and a high frequency ultrasound atomizer on the rate of dye degradation was also investigated.
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