Cite this article as:
Uspanova D. M., Nechayeva O. V., Shurshalova N. F., Kameneva V. V., Bychkov A. R. Study of the Effectiveness of Using a Saprophytic Strain of Bacteria Bacillus pumilus for the Disposal of Xenobiotics of Hazard Class I–II. Izvestiya of Saratov University. Chemistry. Biology. Ecology, 2020, vol. 20, iss. 2, pp. 200-206. DOI: https://doi.org/10.18500/1816-9775-2020-20-2-200-206
Study of the Effectiveness of Using a Saprophytic Strain of Bacteria Bacillus pumilus for the Disposal of Xenobiotics of Hazard Class I–II
Using the model of silt sediments of different ages and soils contaminated with oil products, the utilizing ability of the saprophytic bacterium Bacillus pumilus was studied. It was established that 7 days after the introduction of silt sediment samples of B. pumilus culture into the samples, there was an increase in the mass concentration of copper, cadmium and lead ions, followed by a decrease in the dynamics after 21 days of bacterial exposure. The mass concentration of zinc ions in the sludge samples decreased in dynamics over the entire duration of the experiment. The introduction of the B. pumilus culture into technologically altered soils containing petroleum products contributed to a significant decrease in their mass concentration, most pronounced by the 20th day of the experiment. The results obtained make it possible to consider B. pumilus as an effective and safe component in the development of complex biologics for the rehabilitation of anthropogenically modified soils.
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