| Budget Amount *help |
¥23,530,000 (Direct Cost: ¥18,100,000、Indirect Cost: ¥5,430,000)
Fiscal Year 2019: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2018: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2017: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2016: ¥11,960,000 (Direct Cost: ¥9,200,000、Indirect Cost: ¥2,760,000)
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| Outline of Final Research Achievements |
The purposes of this study are to (1) quantify labile and refractory organic matter in coastal marine sediments from the Seto Inland Sea, Japan, and to (2) develop an environmental remediation material for decomposition of refractory organic matter in marine sediments. Refractory organic matter content in sediments ranged from 4.7 to 21.4 mg/g, a percent composition equivalent to 72 to 94% of TOC. The concentrations of perfluorocarboxylic acid in surface sediments from the Sea ranged from 0.05 to 0.67 ng/g. The concentrations of HCHs, DDTs, and CHLs in sediments from the Sea were <0.002 to 1.20 ng/g, 0.01 to 2.51 n/g, and 0.01 to 0.48 ng/g, respectively. The organic matter decomposition experiments were carried out to optimize the environmental remediation materials. When the granulated coal ash which was prepared by mixing coal fly ash and blast furnace cement was applied to the sediments, the organic matter decomposition was enhanced compared to control.
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