Processes for treatment of liquid radioactive waste containing seawater
| Autor: | E. K. Papynov, Valentin Avramenko, V. I. Sergienko, Ivan G. Tananaev, A. M. Egorin, T. A. Sokol’nitskaya |
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| Rok vydání: | 2017 |
| Předmět: |
Radionuclide
Chemistry 020209 energy Radiochemistry Radioactive waste Sorption 02 engineering and technology Mineralization (soil science) 010403 inorganic & nuclear chemistry 01 natural sciences Chemical reaction Nuclear decommissioning 0104 chemical sciences 0202 electrical engineering electronic engineering information engineering Seawater Physical and Theoretical Chemistry |
| Zdroj: | Radiochemistry. 59:407-413 |
| ISSN: | 1608-3288 1066-3622 |
| DOI: | 10.1134/s1066362217040142 |
| Popis: | The main sources of formation of liquid radioactive waste (LRW) containing seawater are determined, and the main problems arising in management of such waste are analyzed. Sorption methods for removing long-lived Cs and Sr radionuclides from highly mineralized (>1 g L–1) LRW are determined. The main physicochemical and sorption characteristics, advantages, and drawbacks of candidate sorbents for removing Cs and Sr radionuclides are described. Examples of using SRM and VS-5 chemical reaction sorption materials developed for removing Sr from LRW with the mineralization of up to 60 g L–1 are given. The results of studying composite materials based on BaSiO3 and resorcinol–formaldehyde resins, intended for removing Cs and Sr radionuclides from seawater, are analyzed. Composite sorbents of such type efficiently remove Cs and Sr radionuclides from seawater. Processes developed by the authors and brought into practice at various plants of the Far East for treatment of multicomponent LRW formed in the course of operation, repair, and decommissioning of nuclear-powered surface ships and submarines are described. |
| Databáze: | OpenAIRE |
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