TY - JOUR
T1 - Influence of microorganisms on the behavior of technetium and other elements in paddy soil surface water
AU - Ishii, Nobuyoshi
AU - Tagami, Keiko
AU - Enomoto, Shuichi
AU - Uchida, Shigeo
N1 - Funding Information:
The authors thank Dr. T. Sekine of Tohoku University for providing 95m Tc. Mr. H. Koiso at Tokyo Nuclear Services Co., Ltd. is acknowledged for his experimental support. The authors are also grateful to Dr. R. Hirunuma and Dr. H. Haba of RIKEN for their help with the multitracer preparation. This work has been partially supported by the Agency for Natural Resources and Energy, the Ministry of Economy, Trade and Industry (METI) Japan.
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2004
Y1 - 2004
N2 - Insolubilization patterns of technetium (Tc) and other trace elements (Sc, Co, Zn, Se, Rb, Sr, Y, Nb, Ce, Pm, Gd, Lu, Hf, and Re) in surface water covering paddy fields were compared to gain insight into the behavior of Tc in an agricultural environment. The insolubilization of Tc, which did not pass through a 0.2-μm-pore-size filter, was mainly caused by bacteria. Among the 14 other elements investigated, Nb was insolubilized by bacteria and the amounts of insoluble Nb were positively correlated with those of Tc. Although Re is a chemical analog of Tc, no similarity was observed. These results suggest that Tc behaves similarly to Nb in the insolubilization in surface water covering paddy fields.
AB - Insolubilization patterns of technetium (Tc) and other trace elements (Sc, Co, Zn, Se, Rb, Sr, Y, Nb, Ce, Pm, Gd, Lu, Hf, and Re) in surface water covering paddy fields were compared to gain insight into the behavior of Tc in an agricultural environment. The insolubilization of Tc, which did not pass through a 0.2-μm-pore-size filter, was mainly caused by bacteria. Among the 14 other elements investigated, Nb was insolubilized by bacteria and the amounts of insoluble Nb were positively correlated with those of Tc. Although Re is a chemical analog of Tc, no similarity was observed. These results suggest that Tc behaves similarly to Nb in the insolubilization in surface water covering paddy fields.
KW - Bacteria
KW - Multitracer
KW - Paddy soil surface water
KW - Technetium
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U2 - 10.1016/j.jenvrad.2004.04.006
DO - 10.1016/j.jenvrad.2004.04.006
M3 - Article
C2 - 15381327
AN - SCOPUS:4544360261
VL - 77
SP - 369
EP - 380
JO - Journal of Environmental Radioactivity
JF - Journal of Environmental Radioactivity
SN - 0265-931X
IS - 3
ER -