Influence of microorganisms on the behavior of technetium and other elements in paddy soil surface water

Journal of Environmental Radioactivity
Nobuyoshi IshiiShigeo Uchida

Abstract

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-microm-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.

References

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Sep 26, 2001·Applied and Environmental Microbiology·G De LucaA Verméglio
Nov 1, 1983·Plant Physiology·D A CataldoT R Garland

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Citations

May 27, 2005·Current Opinion in Biotechnology·Jonathan R Lloyd, Joanna C Renshaw
May 13, 2014·Journal of Environmental Radioactivity·Jim E SzecsodyNancy J Hess
Nov 26, 2008·Journal of Environmental Radioactivity·S UchidaY H Choi
Sep 25, 2004·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·Keiko Tagami, Shigeo Uchida

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