Numerical simulation of high-level radioactive nuclear waste glass production
- Westinghouse Savannah River Co., Aiken, SC (United States)
- Purdue Univ., Indianapolis, IN (United States). Dept. of Mechanical Engineering
Vitrification of radioactive waste has become an international approach for converting highly radioactive wastes into a durable solid prior to placing them in a permanent disposal repository. The technology for the process is not new. The conversion melter is a direct descendant of all electric melters used for manufacturing of some commercial glass types. Therefore, the vitrification process of radioactive wastes inherits typical problems of all electric furnaces and creates some other specific problems such as noble metal sedimentation. The noble metals and nickel sulfides in the melter are heavier than molten glass and have a low solubility. In a reducing condition, these metals amalgamate and tend to settle on the melter floor. The metal deposit resulting from this settling has a potential to short circuit the melter. The objective of this paper is to identify the typical problems that have been encountered in the waste melter operations and to address how these problems can be tackled using state-of-the-art numerical simulation techniques. It is believed that the large amount of pilot-scale melter experience throughout the world, combined with the knowledge gained from state-of-the-art computer modeling techniques would give assurance that the existing and future radioactive wastes can be effectively converted into a durable glass material and safely placed in a permanent repository.
- Research Organization:
- Westinghouse Savannah River Co., Aiken, SC (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC09-89SR18035
- OSTI ID:
- 5787768
- Report Number(s):
- WSRC-MS-91-099; CONF-911040-13; ON: DE92009901
- Resource Relation:
- Conference: International waste management conference, Seoul (Korea, Republic of), 21-26 Oct 1991
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
CERAMIC MELTERS
MATHEMATICAL MODELS
HIGH-LEVEL RADIOACTIVE WASTES
VITRIFICATION
METALS
SOLUBILITY
ELECTRIC FURNACES
ELEMENTS
FURNACES
MATERIALS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
WASTES
052001* - Nuclear Fuels- Waste Processing
990200 - Mathematics & Computers