Retardation of the migration of radionuclides by nitratereducing microorganisms

2011 Fiscal Year Final Research Report

• Project/Area Number: 22760681
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Nuclear engineering
• Research Institution: Hiroshima University (2011); Japan Atomic Energy Agency (2010)
• Principal Investigator: TANAKA Kazuya 広島大学, サステナブル・ディベロップメント実践研究センター, 特任講師 (60377992)
• Project Period (FY): 2010 – 2011
• Keywords: バックエンド / 硝酸還元菌 / Mn酸化物 / 移行遅延 / 放射性核種

Research Abstract

In this study, adsorption behavior of Co and actinides(Th(IV), Np(V), U(VI)) on biogenic Mn oxide was examined. Compared with abiotically synthesized Mn oxidδ-MnO2, biogenic Mn oxide showed rather contrasting adsorption behavior. The specific adsorption behavior of the biogenic Mn oxide was possibly attributed to the structural difference between biogenic Mn oxide andδ-MnO2, and organic ligands released from microorganisms.

Research Products

• [Journal Article] Vertical Profiles of Iodine-131 and Cesium-137 in Soils i Fukushima Prefecture related to the Fukushima Daiichi Nuclear Power Station Accident. Geochem (2012)
  • Author(s): Tanaka, K., Takahashi, Y., Sakaguchi, A., Umeo, M., Hayakawa, S., Tanida, H., Saito, T. and Kanai, Y.
  • Journal Title: J. Volume: 46 Pages: 73-76
  • Peer Reviewed
• [Journal Article] Trophic Position and Metabolic Rate Predict the Long-Term Decay Process of Radioactive Cesium in Fish (2012)
  • Author(s): Doi, H., Takahara, T. and Tanaka, K.
  • Journal Title: A Meta-Analysis. PLoS ONE Volume: 7(1), e29295
  • DOI: doi:10.1371/journal.pone.0029295
  • Peer Reviewed
• [Journal Article] Accumulation of Co in Yeast Cells under Metabolically Active Condition-Implication for Role of Yeast in Migration of Radioactive Co- (2011)
  • Author(s): Kozai, N., Ohnuki, T., Sakamoto, F., Suzuki, Y., Tanaka, K., Iefuji, H. and Sakai, T.
  • Journal Title: J. Nucl. Sci. Technol. Volume: 48 Pages: 1206-1213
  • Peer Reviewed
• [Journal Article] Specific Sorption Behavior of Actinoids on Biogenic Mn Oxide (2011)
  • Author(s): Tanaka, K., Tani, Y. and Ohnuki, T.
  • Journal Title: Chem. Lett. Volume: 40 Pages: 806-807
  • Peer Reviewed
• [Journal Article] Biological nano-mineralization of Ce phosphate by Saccharomyces cerevisiae (2010)
  • Author(s): Jiang, M., Ohnuki, T., Kozai, N., Tanaka, K., Suzuki, Y., Sakamoto, F., Kamiishi, E. and Utsunomiya, S.
  • Journal Title: Chem. Geol. Volume: 277 Pages: 61-69
  • Peer Reviewed
• [Journal Article] A specific Ce oxidation process during sorption of rare earth elements on biogenic Mn oxide produced by Acremonium sp (2010)
  • Author(s): Tanaka, K., Tani, Y., Takahashi, Y., Tanimizu, M., Suzuki, Y., Kozai, N. and Ohnuki, T.
  • Journal Title: strain KR21-2. Geochim. Cosmochim. Acta Volume: 74 Pages: 5463-5477
  • Peer Reviewed
• [Journal Article] EXAFS study on the cause of enrichment of heavy REEs at bacterial cell surfaces (2010)
  • Author(s): Takahashi, Y., Yamamoto, M., Yamamoto, Y. and Tanaka, K.
  • Journal Title: Geochim. Cosmochim Acta Volume: 74 Pages: 5443-5462
  • Peer Reviewed
• [Journal Article] Effects of citrate, NTA and EDTA on the reduction of U(VI) by Shewanella putrefaciens (2010)
  • Author(s): Suzuki, Y., Tanaka, K., Kozai, N. and Ohnuki, T.
  • Journal Title: Geomicrobiol. J. Volume: 27 Pages: 245-250
  • Peer Reviewed
• [Presentation] Sorption anomaly of Ce by biogenic Mn oxide : A specific Ce(iii) oxidation to Ce(iv) by biogenic Mn oxide (2011)
  • Author(s): Tanaka, K., Tani, Y. and Ohnuki, T.
  • Organizer: Migration 2011
  • Place of Presentation: Beijing, China
  • Year and Date: 2011-09-19
• [Presentation] 福島県表層土壌コア試料中の放射性ヨウ素(^131i)及びセシウム(^<137> Cs)の深度プロファイル (2011)
  • Author(s): 田中万也, 高橋嘉夫, 坂口綾, 齋藤隆
  • Organizer: 2011年度地球化学会年会
  • Place of Presentation: 北海道大学
  • Year and Date: 2011-09-14
• [Presentation] Specific sorption of Th(IV), Np(V) and U(VI) on biogenic Mn oxide (2011)
  • Author(s): Tanaka, K., Tani, Y. and Ohnuki, T.
  • Organizer: Goldschmidt 2011
  • Place of Presentation: Prague, Czech Republic
  • Year and Date: 2011-08-18
• [Presentation] 生物性Mn酸化物によるCo酸化過程 (2010)
  • Author(s): 田中万也, 大貫敏彦
  • Organizer: 日本原子力学会2010年秋の大会
  • Place of Presentation: 北海道大学
  • Year and Date: 2010-09-17
• [Presentation] 微生物による重元素の化学状態変化に伴う鉱物化 (2010)
  • Author(s): 田中万也, 鈴木義規, 姜明玉, 宇都宮聡, 大貫敏彦
  • Organizer: 2010年度日本地球化学会年会(招待講演)
  • Place of Presentation: 立正大学
  • Year and Date: 2010-09-09
• [Presentation] Co oxidation by Mn oxide produced by a Mn-oxidizing bacterium (2010)
  • Author(s): Tanaka, K., Suzuki, Y. and Ohnuki, T.
  • Organizer: Goldschmidt Conference2010
  • Place of Presentation: Knoxville, USA
  • Year and Date: 2010-06-15