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Biogeochemical Factors of Cs, Sr, U, Pu Immobilization in Bottom Sediments of the Upa River, Located in the Zone of Chernobyl Accidentстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Zelenina Darya, Kuzmenkova Natalia, Sobolev Denis, Boldyrev Kirill, Namsaraev Zorigto, Artemiev Grigoriy, Samylina Olga, Popova Nadezhda, Safonov Alexey
- Журнал: Biology
- Том: 12
- Номер: 1
- Год издания: 2023
- Издательство: MDPI Publishing
- Местоположение издательства: Basel, Switzerland, Switzerland
- Номер статьи: 10
- DOI: 10.3390/biology12010010
- Аннотация: Laboratory modeling of Cs, Sr, U, Pu immobilization by phytoplankton of the river Upa,affected after the Chernobyl accident, has been carried out. Certain conditions are selected for strongfixation of radionuclides in bottom sediments due to biogeochemical processes. The process of radionuclide removal from the water phase via precipitation was based on their accumulation byphytoplankton, stimulated by nitrogen and phosphorus sources. After eight days of stimulation,planktonic phototrophic biomass, dominated by cyanobacteria of the genus Planktothrix, appears inthe water sample. The effectiveness of U, Pu and Sr purification via their transfer to bottom sediment was observed within one month. The addition of ammonium sulfate and phosphate (Ammophos) led to the activation of sulfate- and iron-reducing bacteria of the genera Desulfobacterota, Desulfotomaculum, Desulfosporomusa, Desulfosporosinus, Thermodesulfobium, Thiomonas, Thiobacillus, Sulfuritallea, Pseudomonas, which form sulphide ferrous precipitates such as pyrite, wurtzite, hydrotroillite,etc., in anaerobic bottom sediments. The biogenic mineral composition of the sediments obtainedunder laboratory conditions was verified via thermodynamic modeling
- Добавил в систему: Сафонов Алексей Владимирович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | biology-12-00010_1.pdf | 1,4 МБ | 26 декабря 2022 [ASafonof] | |
| 2. | Biogeochemical_Factors_of_Cs_Sr_U_Pu_Immobilization_in_Bott… | Biogeochemical_Factors_of_Cs_Sr_U_Pu_Immobilization_in_Bott… | 1,8 МБ | 27 декабря 2023 [Zelenina_Darya_Andreevna] |