The Heavy Metals Speciations in Bottom Sediments of Vyshny Volochek Reservoir

The water ecosystem of the Vyshny Volochek Reservoir is characterized based on the study of the distribution of heavy metals speciations in the solid phase and pore waters of bottom sediments. Using the sequential extraction procedure, it is shown that Mn is mainly present in exchangeable and carbon...

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Bibliographic Details
Published inMoscow University geology bulletin Vol. 73; no. 4; pp. 366 - 374
Main Author Lipatnikova, O. A.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.07.2018
Springer Nature B.V
Subjects
Bottom sediments
Carbonates
Earth and Environmental Science
Earth Sciences
Geology
Heavy metals
Hydroxides
Lead
Lithology
Manganese
Metals
Organic matter
Reservoirs
Sediment
Sediments
Speciation
Zinc
sequential extraction procedure
bottom sediments
heavy metals
mobile forms
thermodynamic calculation
Vyshny Volochek Reservoir
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Summary:The water ecosystem of the Vyshny Volochek Reservoir is characterized based on the study of the distribution of heavy metals speciations in the solid phase and pore waters of bottom sediments. Using the sequential extraction procedure, it is shown that Mn is mainly present in exchangeable and carbonate-bound forms; significant roles for Fe, Zn, Pb, and Co are played by forms that are bound to iron and manganese hydroxides and Cu and Ni are mainly bound to organic matter. Thermodynamic calculations have established the prevailing share of the following forms in pore waters: free ions for Zn, Ni, Co, and Cd, carbonate complexes for Pb, and fulvic complexes for Cu. It has been revealed that the speciation forms of heavy metals in bottom sediments depend on the lithological features and content of organic matter in sediments.
ISSN:0145-8752
1934-8436
DOI:10.3103/S0145875218040087