2014 Fiscal Year Final Research Report
Experimental studies of phytoremediation of radiogenic Cs polluted soils
| Project/Area Number |
24540492
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Geology
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| Research Institution | Ehime University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
SANO Sakae 愛媛大学, 教育学部, 教授 (10226037)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | カヤツリグサ科マツバイ / 放射性Cs / 水田土壌汚染 / 福島県 / 水耕栽培実験 / フィールド実験 / ファイトレメディエーション / 細断散布法 |
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| Outline of Final Research Achievements |
The study was conducted by three experiments using aquatic macropyte Eleocharis acicularis, such as ①hydroponic cultivation experiments in Cs-K solution, ②radioactive Cs concentration and Bioconcentration Factor (BCF) of native Eleocharis acicularis in Fukushima Prefecture, and ③field experiment in paddy field of Fukushima prefecture.As a result of this study, ①Maximum concentration of radiogenic Cs of Eleocharis acicularis is more than 1000mg/kg-DW and it is consistent with hyperaccumulator of Cs, ②Native Eleocharis acicularis shows maximum values for 2400 Bq/kg in the prefecture, and ③Eleocharios acicularis cultivated in the paddy field which Cs radioactive concentration is 6580 Bq/kg shows their average 1310 Bq/kg in 2012, and 782 Bq/kg in 2013.
Based on the above results, it was demonstrated that phytoremediation of radioactive Cs polluted soils by Eleocharis acicularis is convenient and one of effective techniques.
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| Free Research Field |
地球科学
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