Apatite and sodalite based glass-bonded waste forms for immobilization of 129I and mixed halide radioactive wastes
- Rutgers Univ., New Brunswick, NJ (United States)
- Washington State Univ., Pullman, WA (United States)
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
The goal of the project was to utilize the knowledge accumulated by the team, in working with minerals for chloride wastes and biological apatites, toward the development of advanced waste forms for immobilizing 129I and mixed-halide wastes. Based on our knowledge, experience, and thorough literature review, we had selected two minerals with different crystal structures and potential for high chemical durability, sodalite and CaP/PbV-apatite, to form the basis of this project. The focus of the proposed effort was towards: (i) low temperature synthesis of proposed minerals (iodine containing sodalite and apatite) leading to the development of monolithic waste forms, (ii) development of a fundamental understanding of the atomic-scale to meso-scale mechanisms of radionuclide incorporation in them, and (iii) understanding of the mechanism of their chemical corrosion, alteration mechanism, and rates. The proposed work was divided into four broad sections. deliverables. 1. Synthesis of materials 2. Materials structural and thermal characterization 3. Design of glass compositions and synthesis glass-bonded minerals, and 4. Chemical durability testing of materials.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Rutgers Univ., New Brunswick, NJ (United States); Washington State Univ., Pullman, WA (United States)
- Sponsoring Organization:
- USDOE Office of Nuclear Energy (NE). Nuclear Energy University Program (NEUP)
- DOE Contract Number:
- NE0008257; NU-14-NJ-RU-0203-02
- OSTI ID:
- 1424010
- Report Number(s):
- 14-6285; 14-6285; TRN: US1801192
- Country of Publication:
- United States
- Language:
- English
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