A METHOD FOR REGENERATION OF SPENT ELECTROCHEMICAL DECONTAMINATION SOLUTION AND ITS TREATMENT FOR FINAL DISPOSAL [electronic resource]
This paper describes the method of regeneration of spent electrochemical decontamination solution. The proposed method allows separation of radionuclides and stable metals from spent decontamination solution in a form suitable for final disposal and repeated use of the remaining solution for electro...
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Online Access |
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| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Oak Ridge, Tenn. : Oak Ridge, Tenn. :
United States. Dept. of Energy. Office of Scientific and Technical Information ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
2003.
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| Subjects: |
MARC
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| 245 | 0 | 2 | |a A METHOD FOR REGENERATION OF SPENT ELECTROCHEMICAL DECONTAMINATION SOLUTION AND ITS TREATMENT FOR FINAL DISPOSAL |h [electronic resource] |
| 260 | |a Oak Ridge, Tenn. : |b United States. Dept. of Energy. Office of Scientific and Technical Information ; |a Oak Ridge, Tenn. : |b distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, |c 2003. | ||
| 300 | |a 9 pages : |b digital, PDF file. | ||
| 336 | |a text |b txt |2 rdacontent. | ||
| 337 | |a computer |b c |2 rdamedia. | ||
| 338 | |a online resource |b cr |2 rdacarrier. | ||
| 500 | |a Published through the Information Bridge: DOE Scientific and Technical Information. | ||
| 500 | |a 02/27/2003. | ||
| 500 | |a Waste Management 2003 Symposium, Tucson, AZ (US), 02/23/2003--02/27/2003. | ||
| 500 | |a Hudson, M.J.; John, J.; Davydov, Yu.P.; Prazska, M.; Toropov, I.G.; Motl, A.; Davydov, D.Yu.; Rosikova, K. | ||
| 500 | |a Joint Institute of Power Engineering and Nuclear Research, Belorussian Academy of Sciences, Sosny, Minsk (BY) | ||
| 500 | |a Czech Technical University in Prague, Prague (CZ) | ||
| 500 | |a University of Reading, Reading (GB) | ||
| 500 | |a AllDeco Ltd., Trnava (SK) | ||
| 500 | |a WM Symposia, Inc. (US) | ||
| 520 | 3 | |a This paper describes the method of regeneration of spent electrochemical decontamination solution. The proposed method allows separation of radionuclides and stable metals from spent decontamination solution in a form suitable for final disposal and repeated use of the remaining solution for electrochemical decontamination. Development of this method was based on the results of the speciation studies which showed that Fe(III) can be precipitated in the presence of organic complexing agents, in a form of iron hydroxide, and Ag-110m, Co-60, Mn-54 radionuclides can be coprecipitated on it. In order to verify the conclusions made as a result of the speciation studies, the experiments with electrochemically prepared simulant solution and real solution were carried out. The test results proved that the proposed method can be applied in practice. Treatment of the ultimately spent decontamination solutions can be also made applying iron precipitation, which allows for removal of the bulk amount of contaminants, as the first step. Then, if necessary the remaining radionuclides can be removed by sorption. A series of novel absorbers has been tested for their potential for the sorption removal of the remaining radionuclides from the supernate. The test results showed that most of them were more effective in neutral or alkaline range of pH, however, the high efficiency of the sorption removal can be achieved only after the removal of the oxalic and citric acids from solution. | |
| 650 | 7 | |a Radioactive Waste Processing. |2 local. | |
| 650 | 7 | |a Spent Liquors. |2 local. | |
| 650 | 7 | |a Regeneration. |2 local. | |
| 650 | 7 | |a Iron Hydroxides. |2 local. | |
| 650 | 7 | |a Efficiency. |2 local. | |
| 650 | 7 | |a Sorption. |2 local. | |
| 650 | 7 | |a Electrochemical Cells. |2 local. | |
| 650 | 7 | |a Precipitation. |2 local. | |
| 650 | 7 | |a Chelating Agents. |2 local. | |
| 650 | 7 | |a Management Of Radioactive Wastes, And Non-radioactive Wastes From Nuclear Facilities. |2 edbsc. | |
| 710 | 1 | |a United States. |b Department of Energy. |b Office of Scientific and Technical Information. |4 res. | |
| 710 | 1 | |a United States. |b Department of Energy. |b Office of Scientific and Technical Information. |4 dst. | |
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