Vitrification of nuclear wastes by complex sol-gel process

Andrzej Deptuła, Magdalena Miłkowska, Wiesława Łada, Tadeusz Olczak, Danuta Wawszczak, Tomasz Smolinski, Marcin Brykala, Andrzej G. Chmielewski, Fabio Zaza, Kenneth C. Goretta

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8 Citations (Scopus)

Abstract

For synthesis of silica glasses designed to contain high-level nuclear wastes, a patented complex sol-gel process has been used. Surrogates of the nuclear waste elements Cs, Sr, Co, and Nd (generically denoted Me) were used. Gels in the forms of powders and sintered compacts were prepared by hydrolysis and polycondensation of tetraethoxide/Me nitrate solutions, which contained ascorbic acid as a catalyst. Transformation to final products was studied by thermogravimetric analysis, infrared spectroscopy, and X-ray diffraction. Preliminary testing of Me leaching was also completed in water. Most of the final products were porous; only a single dense form was resistant to leaching. © (2012) Trans Tech Publications, Switzerland.
Original languageEnglish
DOIs
Publication statusPublished - 2012
Externally publishedYes
Event1st International Conference on Energy and Environmental Protection, ICEEP 2012 - , China
Duration: 1 Jan 2012 → …

Conference

Conference1st International Conference on Energy and Environmental Protection, ICEEP 2012
CountryChina
Period1/1/12 → …

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All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Deptuła, A., Miłkowska, M., Łada, W., Olczak, T., Wawszczak, D., Smolinski, T., ... Goretta, K. C. (2012). Vitrification of nuclear wastes by complex sol-gel process. Paper presented at 1st International Conference on Energy and Environmental Protection, ICEEP 2012, China. https://doi.org/10.4028/www.scientific.net/AMR.518-523.3216