Migration of Vanadium in the Ecosystem of Kuchurgan Cooling Reservoir of the Moldovan Thermal Power Plant
| Autor: | Elena I. Zubсova, Alexander A. Protasov, Lucia I. Biletski, Natalia N. Zubcova, Laurentia N. Ungureanu, Lilia N. Tihonenkova, Elena N. Philipenko, Anjelika A. Silaeva |
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| Jazyk: | English<br />Russian |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Журнал Сибирского федерального университета: Серия Биология, Vol 10, Iss 4, Pp 446-458 (2017) |
| Druh dokumentu: | article |
| ISSN: | 1997-1389 2313-5530 |
| Popis: | The article describes the results of long-term research on the dynamics of vanadium migration in water, bottom sediments, higher aquatic plants, bottom invertebrates, and fishes in the cooling reservoir of the Moldovan Thermal Power Plant. An obvious dependence of the level of vanadium in aquatic ecosystem on the quantity and composition of burnt fuel at the plant was established. In most of cases the migration of vanadium in the system “water – silts” occured from water layers to bottom sediments. But if the intensity of sulphate reduction and putrefaction processes increases and the concentration of dissolved oxygen decreases the reverse diffusion from silts to water will become possible. The level of accumulation of metals in hydrobionts is one of the most important parameters in the biomonitoring of metals in aquatic ecosystems. The concentration of vanadium in aquatic plants and animals depended on the intensity of metabolism and interspecific features, plastic and generative metabolism (at fish), but in the same time reflected the dynamics of vanadium in the environment. The values of the coefficient of vanadium biological accumulation in aquatic organisms reached up to n×107 |
| Databáze: | Directory of Open Access Journals |
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