Leaching of glass components and surrogate nuclides from glassy waste forms for radioactive incineration ash

Hang Sik Shin, In Tae Kim, Jae Hyung Yoo, Jong Sik Shon, Joon Hyung Kim, Yong Chil Seo

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The applicability of vitrification technology to treat radioactive incineration ash was studied, especially in terms of leaching characteristics, by using several glassy waste forms which are fabricated with simulated incineration ash and base-glass at different mixing ratios. The ISO leaching test has been conducted for 820 days. Two semi-empirical models were applied to find out the dominant leaching mechanism of glass elements. Dissolution associated with diffusion was the dominant leaching mechanism and the elemental leaching characteristic depended upon its solubility in water. A theoretical leaching prediction model was applied to observe the long-term leaching behavior of major glass elements and surrogate nuclides. Diffusion coefficients and dissolution rate constants, the main parameters in the long-term prediction model, of glass elements and surrogates were obtained using short- and long-term experimental data. The model was found to be useful in predicting the long-term behavior of such elements in order to assess the stability of glassy waste forms.

Original languageEnglish
Pages (from-to)121-128
Number of pages8
JournalJournal of Radioanalytical and Nuclear Chemistry
Volume253
Issue number1
DOIs
Publication statusPublished - 2002 Aug 3

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Nuclear Energy and Engineering
  • Radiology Nuclear Medicine and imaging
  • Pollution
  • Spectroscopy
  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis

Fingerprint Dive into the research topics of 'Leaching of glass components and surrogate nuclides from glassy waste forms for radioactive incineration ash'. Together they form a unique fingerprint.

  • Cite this