Development of separation technique of sodium nitrate from low-level radioactive liquid waste using electrodialysis with selective ion-exchange membranes
- Radioactive Waste treatment Technology Development Gr, Nuclear Cycle Backend Directorate, Japan Atomic Energy Agency, 4-33 Muramatsu, Tokai, Ibaraki 319-1194 (Japan)
- Nuclear Cycle Backend Directorate, Japan Atomic Energy Agency, 4-33 Muramatsu, Tokai, Ibaraki 319-1194 (Japan)
An advanced method, in which electrodialysis separation of sodium nitrate and decomposition of nitrate ion are combined, has been developed to remove nitrate ion from low-level radioactive liquid wastes including nitrate salts of high concentration. An engineering scale apparatus with two electro-dialytic devices, in which the sodium and nitrate ions were separately removed by each device, was produced on the basis of the results of fundamental investigation previously reported, and the performance of the apparatus was tested. Both the ions were successfully removed at the same time, though these ions were separately transferred using two electro-dialytic devices. And also effect of several experimental parameters such as current and temperature on current efficiency of both the ions of each device was investigated. (authors)
- Research Organization:
- American Society of Mechanical Engineers - ASME, Nuclear Engineering Division, Environmental Engineering Division, Two Park Avenue, New York, NY 10016-5990 (United States)
- OSTI ID:
- 22535144
- Resource Relation:
- Conference: ICEM2013 - ASME 2013: 15. International Conference on Environmental Remediation and Radioactive Waste Management, Brussels (Belgium), 8-12 Sep 2013; Other Information: Country of input: France; 12 refs
- Country of Publication:
- United States
- Language:
- English
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