Sorption Concentration of Uranium in Sea Water Using a Polymer Sorbent Containing Fragments of Dithizone
| Autor: | E. N. Alirzaeva, Nazim T. Shamilov, F. M. Chyragov, F. N. Bahmanova, S. R. Gadjieva |
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| Rok vydání: | 2019 |
| Předmět: |
Sorbent
Elution chemistry.chemical_element Sorption 02 engineering and technology General Chemistry 010501 environmental sciences Uranium complex mixtures 01 natural sciences Styrene chemistry.chemical_compound 020401 chemical engineering chemistry Desorption Perchloric acid Dithizone 0204 chemical engineering 0105 earth and related environmental sciences Water Science and Technology Nuclear chemistry |
| Zdroj: | Journal of Water Chemistry and Technology. 41:94-100 |
| ISSN: | 1934-936X 1063-455X |
| Popis: | The article has studied the removal of U(VI) chelatoforming sorbent based on anhydride with styrene chemically modified by dithizone. It was established that uranium is sorbed to its maximum at pH 5 (ammonia-acetate buffer) and concentration 1428 mg/dm3. Statistical sorption capacity—1249 mg/g. It was cleared out that ionic force up to 0.6 did not affect sorption and its consecutive increase at first gradually and then sharply decrease sorption. It is established that when using different mineral acids (HCIO4, H2SO4, HNO3, HCI) maximum desorption is observed in perchloric acid. The technique for concentration of U(VI) in sea water has been developed including sorption, elution and definition in the desorption solution. |
| Databáze: | OpenAIRE |
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