2012 Fiscal Year Final Research Report
Fate of mercury and selenium contained in fish in the recycle of fishery product wastes
| Project/Area Number |
22350069
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Environmental chemistry
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| Research Institution | Kagoshima University |
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Principal Investigator |
OHKI Akira 鹿児島大学, 大学院・理工学研究科, 教授 (20127989)
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| Co-Investigator(Kenkyū-buntansha) |
NAKAJIMA Tsunenori 鹿児島大学, 大学院・理工学研究科, 助教 (70284908)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 水産廃棄物 / 廃棄物再資源化 / 水銀 / セレン / 亜臨界水処理 / 堆肥化処理 / サイズ排除クロマトグラフィー |
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| Research Abstract |
In the recycle of fishery product wastes, the fate of mercury and selenium was investigated on the viewpoint of the generation of hazardous free species.Although the methylmercury species contained in fish meat was stabilized and detoxified by selenoprotein, it was clarified that free methylmercury and low-molecular selenium species were generated when the fish meat was subjected to a hydrothermal treatment (subcritical water treatment). Also, it was found that the demethylation of methylmercuryas well as the vaporization of selenium occurred during fermentation (compost) processes.
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