論文

査読有り 筆頭著者
2014年3月4日

Effects of salt content on leaching properties of synthetic bituminized wastes

Journal of Nuclear Science and Technology
  • Keita Irisawa
  • ,
  • Osamu Ohsone
  • ,
  • Yoshihiro Meguro

51
3
開始ページ
323
終了ページ
331
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1080/00223131.2014.864959
出版者・発行元
Informa UK Limited

The leaching properties of soluble components (Na+, NO -3, and NO-2) in synthetic bituminized wastes with various characteristics, such as salt content, salt composition, and bitumen matrix, were quantitatively evaluated by means of an aqueous leaching test. Micropores were formed in the bituminized waste by the leaching of soluble salts. The penetrability of bitumen and the salt content affected the size and the shape of the micropores observed by scanning electron microscopy. The linear relationship between leaching fraction of the soluble components and square root of leaching time was observed, and the diffusion coefficient of the soluble component was determined by Fick's law. The diffusion coefficients of ionic species of interest were similar to each other. Moreover, the diffusion coefficient agreed among bituminized wastes with the same salt content, even if salt composition and bitumen matrix were different. The diffusion coefficient of the component was proportional to the salt content in the synthetic bituminized wastes. It was found that the salt content in the bituminized waste was one of the key factors to determine the diffusion coefficient. © 2013 Atomic Energy Society of Japan. All rights reserved.

リンク情報
DOI
https://doi.org/10.1080/00223131.2014.864959
URL
http://www.tandfonline.com/doi/pdf/10.1080/00223131.2014.864959
ID情報
  • DOI : 10.1080/00223131.2014.864959
  • ISSN : 0022-3131
  • eISSN : 1881-1248
  • SCOPUS ID : 84893665163

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