| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Outline of Final Research Achievements |
The chemical oxidation for mono-aromatic compounds in FeS2/H2O/O3 system was estimated in this research. The reactive radial species using FeS2 oxidants was cleared, and reaction mechanism, accumulation of by-products of each aromatic compounds were quantitatively evaluated in laboratory experiments. The decomposition ability was different in each mono-aromatic compound, benzene ring was easily opened and degraded to low molecular organic acid. Particularly toluene was persistent among them, and which need combined use with hydrogen peroxide. The effective oxidant with FeS2 reaction was depend on the substituent group of benzene ring.
In addition, this oxidative remediation method is worried about soil acidification occurred by long term sulfide dissolution. The natural neutralization ability of after treatment soils were also evaluated in here.
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