Experimental and numerical investigations of 99TcO4 diffusion in compacted SPV 200 bentonite

Yu Hung Shih, I. Hsien Lee, Chuen Fa Ni, Tsuey Lin Tsai, Liang Cheng Chen, Chuan Pin Lee, Shih Chin Tsai, Te Yen Su

研究成果: Article同行評審

3 引文 斯高帕斯(Scopus)

摘要

Diffusion characteristics in bentonite are essential to quantify the transport of radionuclides through buffer/backfill materials in waste repositories. This study employs through-diffusion techniques to investigate the diffusion behavior of 99TcO4 through SPV bentonite with various densities. The apparent diffusion coefficients for bentonite densities are estimated using Marquardt–Levenberg optimization algorithm in the HYDRUS-1D model. Based on the experimental and calculation results, 99Tc could be considered as non-sorbing radionuclides. The data obtained in this study provide a valuable reference for the safety assessment of waste repositories.

原文English
頁(從 - 到)1081-1089
頁數9
期刊Journal of Radioanalytical and Nuclear Chemistry
316
發行號3
DOIs
出版狀態Published - 2018 六月 1

All Science Journal Classification (ASJC) codes

  • 分析化學
  • 核能與工程
  • 放射學、核子醫學和影像學
  • 污染
  • 光譜
  • 公共衛生、環境和職業健康
  • 健康、毒理學和誘變

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