Microbiological treatment of oil-containing radioactive waste prior to cementation
| Autor: | Elena V. Zakharova, T. L. Babich, V. E. Tregubova, Konstantin E. German, Alexey Safonov, I. M. Proshin |
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| Rok vydání: | 2017 |
| Předmět: |
Cement
Radionuclide Aqueous solution 010405 organic chemistry Chemistry Transformer oil Radioactive waste Oil processing 010403 inorganic & nuclear chemistry Pulp and paper industry 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Tributyl phosphate Physical and Theoretical Chemistry Nuclear chemistry |
| Zdroj: | Radiochemistry. 59:193-202 |
| ISSN: | 1608-3288 1066-3622 |
| DOI: | 10.1134/s106636221702014x |
| Popis: | Microbiological oxidation of liquid organic radioactive waste (ORW), spent vacuum and transformer oils, is described. The physicochemical properties of oils and their structural-group composition before and after using in the process cycle were studied. Changes in the structural-group composition and physicochemical parameters of oils upon microbiological treatment were determined. The distribution of radionuclides between the organic and aqueous phases upon microbiological treatment was studied by the example of model ORW containing 137Cs, 90Sr, 238Pu, and 241Am. The compatibility of oils subjected to microbiological treatment with the cement compound intended for ORW disposal was evaluated. The biological step of the radioactive oil processing leads to a decrease in the weight and volume of the organic radioactive waste and increases its amount that can be incorporated into the cement compound (to 30 vol %) without deterioration of the strength characteristics of the cement. |
| Databáze: | OpenAIRE |
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