Klos V.R.¹, Zhovinsky E.Ya.², Kryuchenko N.O.², Prikhodko M.V.¹
1. State Enterprise «Ukrainian Geological Company»
2. M.P. Semenenko Institute of Geochemistry, Mineralogy and Ore Formation of the National Academy of Science of Ukraine
UDC 550.4
Language: Ukrainian
Geochemistry and ore formation 2017, 38: 95-100
https://doi.org/10.15407/gof.2017.38.095
The results of the study of the geochemical state of the surface sediments (soils) of the Kiev region contaminated with sewage sludge from the Bortnicheskaya Aeration Station (BSA). Geochemical associations are determined, ecological-geochemical estimates of soils are carried out, geochemical parameters are calculated. According to the total pollution index, it is established that the surface sediments, where the sludges are used as fertilizers, are characterized by an extremely dangerous level of contamination: BSA silt fields (396), flowerbed beds (280), virgin soils (236), agricultural lands (186). This indicates the danger of using silt as an organic fertilizer for growing agricultural products. It is established that in the presence of an organic component in surface sediments, Zn and Cd are transformed into more mobile ones, and Cu and Pb – into less mobile compounds, which must be taken into account when fertilizers are needed.
Keywords: sewage sludge, heavy metals, surface sediments, geochemical associations, ecological and geochemical assessment.
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