Analysis on the behavior of radionuclides in groundwater in southern Ural, Russia and its simulation
Project/Area Number |
26257402
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Research Category |
Grant-in-Aid for Scientific Research (A)
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Allocation Type | Single-year Grants |
Section | 海外学術 |
Research Field |
Modeling and technologies for environmental conservation and remediation
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Research Institution | Shizuoka University |
Principal Investigator |
Kato Kenji 静岡大学, 理学部, 名誉教授 (70169499)
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Co-Investigator(Kenkyū-buntansha) |
矢永 誠人 静岡大学, 理学部, 准教授 (10246449)
宇都宮 聡 九州大学, 理学(系)研究科(研究院), 准教授 (40452792)
高橋 嘉夫 東京大学, 理学(系)研究科(研究院), 教授 (10304396)
難波 謙二 福島大学, 共生システム理工学類, 教授 (70242162)
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Co-Investigator(Renkei-kenkyūsha) |
OHNUKI Toshihiko 東京工業大学, 科学技術創成研究院, 教授 (20354904)
TOSAKA Hiroyuki 東京大学, 工学系研究科, 教授 (90188748)
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Project Period (FY) |
2014-04-01 – 2018-03-31
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Project Status |
Completed (Fiscal Year 2017)
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Budget Amount *help |
¥41,860,000 (Direct Cost: ¥32,200,000、Indirect Cost: ¥9,660,000)
Fiscal Year 2017: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2016: ¥10,400,000 (Direct Cost: ¥8,000,000、Indirect Cost: ¥2,400,000)
Fiscal Year 2015: ¥10,530,000 (Direct Cost: ¥8,100,000、Indirect Cost: ¥2,430,000)
Fiscal Year 2014: ¥14,820,000 (Direct Cost: ¥11,400,000、Indirect Cost: ¥3,420,000)
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Keywords | 放射性核種移行 / 地下水 / シミュレーションモデル / 微生物 / ナノ粒子 / 放射線核種移行 |
Outline of Final Research Achievements |
A critical groundwater contamination with radionuclides was caused by nuclear waster processing in Southern Ural. An intermediate level radioactive waste (million to ten billion Bq/kg with Russian standard 2000) was discarded to Lake Karachai from 1951, and it penetrated into groundwater. Observation using over 200 boreholes has been conducted and study focusing on nanoparticles was well done, but microbial function was not elucidated yet. We revealed (1) microbial abundance was significant in contaminated groundwater. (2) DNA analysis revealed denitrifying microbes. (3) Denitrifying may change redox potential leading adsorption of some radionuclides to particles. (4) Isolated microbes adsorbed radionuclides as 239Pu(IV), 241Am(III) and others. (5) Chemical property and function of nanoparticles changed by geology. (6) Simulation modeling of GETFLOWS estimates future distribution of contaminated groundwater. We extend our understanding on the behavior of radionuclides in groundwater.
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Report
(5 results)
Research Products
(34 results)
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[Journal Article] Uranium Dioxides and Debris Fragments Released to the Environment with Cesium-Rich Microparticles from the Fukushima Daiichi Nuclear Power Plant.2018
Author(s)
Ochiai A, Imoto J, Suetake M, Komiya T, Furuki G, Ikehara R, Yamasaki S, Law GTW, Ohnuki T, Grambow B, Ewing RC, Utsunomiya S
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Journal Title
Environmental Science & Technology
Volume: 52
Issue: 5
Pages: 2586-2594
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Transfer of rare earth elements (REE) from manganese oxides to phosphates during early diagenesis in pelagic sediments inferred from REE patterns, X-ray absorption spectroscopy, and chemical leaching method2015
Author(s)
Y. Takahashi, Y. Hayasaka, K. Morita, T. Kashiwabara, R. Nakada, M. A. Marcus, K. Kato, K. Tanaka, and H. Shimizu
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Journal Title
GEOCHEMICAL JOURNAL
Volume: 49
Issue: 6
Pages: 653-674
DOI
NAID
ISSN
0016-7002, 1880-5973
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Characterization of Particulate Matters in the Pripyat River in Chernobyl Related to Their Adsorption of Radiocesium with Inhibition Effect by Natural Organic Matter2014
Author(s)
Suga, H ; Fan, QH ; Takeichi, Y ; Tanaka, K ; Kondo, H ; Kanivets, VV ; Sakaguchi, A ; Kato, K ; Inami, N ; Mase, K ; Ono, K ; Takahashi, Y
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Journal Title
Chemistry Letters
Volume: 43
Issue: 7
Pages: 1128-1130
DOI
NAID
ISSN
0366-7022, 1348-0715
Related Report
Peer Reviewed
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[Presentation] Possibility of microbe as a hydrological tracer for elucidating residence time, flow paths and storage volume of groundwater in headwater catchments.2017
Author(s)
Maki Tsujimura, Mahiro Ogawa, Chisato Yamamoto, Koichi Sakakibara, Ayumi Sugiyama, Kenji Kato, Kazuyo Nagaosa, and Shinjiro Yano
Organizer
IAHS2017-163. IAHS Scientific Assembly 2017, Port Elizabeth, South Africa. 2017/7/10-14
Related Report
Int'l Joint Research
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[Presentation] Microbial influence on the migration of radionuclide in groundwater; from laboratory experiment and in situ observation.2015
Author(s)
K. Kato, K. Nagaosa, T. N. Nazina, S. N. Kalmykov, T. Onuki, Y. Takahashi, S. Utsunomiya, K. Nanba
Organizer
Conference of MODERN PROBLEMS OF GENETICS, RADIOBIOLOGY, RADIOECOLOGY, AND EVOLUTION
Place of Presentation
Saint Petersburg (Russia)
Year and Date
2015-06-02
Related Report
Int'l Joint Research
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[Presentation] Biodiversity of Bacteria and Archaea in nitrate- and radionuclides-contaminated groundwater2014
Author(s)
T.N. Nazina, T.L. Babich, N.K. Kostryukova, D.Sh. Sokolova, R.R. Abdullin, E.V. Zakharova, S.N. Kalmykov, I.G. Tananaev, A.B. Poltaraus, K. Nagaosa, and K. Kato
Organizer
9th International symposium of subsurface microbiology
Place of Presentation
Pacific Grove, California USA
Year and Date
2014-10-05 – 2014-10-10
Related Report
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