Remediation of plants contaminated with cesium by aqueous cleaning

N. Osada, K. Ishii, S. Matsuyama, H. Sugai, K. Kusano, Y. Nozawa, S. Yamauchi, M. Karahashi, S. Oshikawa, K. Kikuchi, S. Koshio, K. Watanabe, S. Itoh, Y. Suzuki, A. Terakawa, Y. Kikuchi, F. Fujishiro, A. Ishizaki, H. Arai

Research output: Contribution to journalArticlepeer-review

Abstract

Aqueous cleaning removed two-thirds of the radioactivity from cesium-contaminated plants. Instead of being transferred to the water, cesium was attached to particles of rice straw. These particles were analyzed by micro-PIXE to determine the surface distribution of several elements. The elemental ratio of cesium to silicon was constant, and both elements exhibited similar distributions, suggesting that cesium was bound nonrandomly to silicon on the surface of the rice straw. Thus, aqueous cleaning removed both cesium and silicon simultaneously.

Original languageEnglish
Pages (from-to)102-104
Number of pages3
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume318
Issue numberPART A
DOIs
Publication statusPublished - Jan 1 2014

Keywords

  • Aqueous cleaning
  • Radioactive cesium
  • Remediation
  • Rice straw

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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