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Vol. 19 (2016 year), No. 1, DOI: 10.21443/1560-9278-2016-1/2
Myazin V. A., Redkina V. V.
The impact of soil contamination by oil products on the growth of Secale cereale L. and prospects for its use in phytoremediation
In the paper the effect of soil contamination by light and dark oil products on a rye (Secale cereale L.) and the prospects of using the plants with phytoremediation have been evaluated. Residual hydrocarbon oil concentration in the soil has been determined, phytoremediation may conduct not more than 5 g/kg of light and not more than 13 g/kg of dark oil
(in Russian, стр.0, fig. 0, tables. 0, ref 0, Adobe PDF, Adobe PDF 0 Kb)
Vol. 22 (2019 year), No. 1, DOI: 10.21443/1560-9278-2019-22-1
Myazin V. A.
The dynamic of some biogenic elements content in the soil during remediation of oil contaminated sites
The possibility of bioremediation of territories polluted with oil products in the difficult natural and climatic conditions of the Kola North has been shown. The work has been carried out in the mountain tundra in the north-west of the Murmansk Region. On the site contaminated with diesel fuel 15–20 years ago, the vegetation cover and the organic soil horizon were destroyed. The type of soil on which the research has been carried out is Entic Podzol. During the restoration work, bioremediation methods have been used, and the data about the change of the organic carbon and mobile phosphates content have been obtained. The use of mineral and organic fertilizers increased the carbon of organic humus matter in 1.6–2.1 times and decreased the carbon of petroleum products in 3.3–4.8 times in the soil. At the same time, the fraction of water-soluble carbon of humus decreased in 1.6–2.0 times. The use of fertilizers during bioremediation increased the content of mobile phosphates in 4.3–6.6 times to the values of pure areas. The use of organic fertilizers prevents the leaching of introduced biogenic elements from the sites located on the slopes. The setting of a favorable nutrient condition and decrease of hydrocarbons content have a positive effect on the growth of plants (Festuca pratensis Huds.) in experimental plots. Reducing phytotoxicity of the soil allows for phytorecultivation and the self-overgrowing of plots by native plant species. The results of this study can be used to develop the theoretical basis for improving the efficiency of bioremediation in areas of the Far North, as well as when planning and carrying out work to restore polluted and disturbed areas located on slopes
(in Russian, стр.11, fig. 7, tables. 1, ref 23, Adobe PDF, Adobe PDF 0 Kb)
Vol. 25 (2022 year), No. 2, DOI: 10.21443/1560-9278-2022-25-2
Potapov S. S., Parshina N. V., Myazin V. A., Evdokimova G. A., Makarov D. V., Goryachev A. A.
The mineral composition of sediments and the reasons for their formation in the heating and hot water supply systems of the towns of Apatity and Kirovsk (the Murmansk Region)
The development of the housing and communal complex is focused on ensuring guaranteed access of the Russian population to high-quality drinking water. Due to the deterioration of drinking water quality, the mineral composition of sediments in the heating and hot water supply systems of the towns of Apatity and Kirovsk (the Murmansk region) has been studied. It has been established that sediments in the heating system mainly consist of iron oxides and oxyhydroxides: magnetite, goethite and lepidocrocite. All these mineral phases are products of active oxidation (corrosion) of steel pipes and heating system equipment. No mineral phases of ferrous forms of iron have been found in the sediment, which indicates sharply oxidizing environment in the heating system. The presence of sulfur-containing mineral phases, namely, anhydrous calcium sulfate – anhydrite and elemental sulfur, has been recorded in the heating system of the Apatity combined heat and power plant. Indirectly, the presence of such sulfur-containing phases may indicate the possible presence of microflora (bacteria) in the heat-transfer agent, in the metabolic processes of which sulfur and sulfur-containing compounds are involved.
(in Russian, стр.8, fig. 6, tables. 0, ref 8, AdobePDF, AdobePDF 0 Kb)
Vol. 27 (2024 year), No. 1, DOI: 10.21443/1560-9278-2024-27-1
Myazin V. A., Shushkov D. A., Fokina N. V., Chaporgina A. A., Kanivets A. V., Bryantsev A. V.
Effectiveness of biogeosorbents based on mineral carriers for treatment oil-contaminated soil
Methods for cleaning oil-contaminated areas include the use of sorbents, the effectiveness of which is enhanced by the immobilization of hydrocarbon-oxidizing microorganisms on their surface. Biogeosorbents are obtained on the basis of mineral raw materials (analcime- and glauconite-containing rocks and thermally activated vermiculite) and hydrocarbon-oxidizing bacteria of the genera Pseudomonas and Microbacterium extracted from contaminated soils of the Murmansk region. The number of immobilized bacteria on the studied carriers remains high throughout 9 months of storage, and the bacterial film on the surface of mineral carriers persists for 12 months of storage in an air-dry state. When storing biogeosorbents, no special conditions or additional preparation are required before use. Mineral carriers have a stimulating effect on the height of seedlings and the length of roots of test plants. When biogeosorbents are added, the number of bacteria capable of microbiological transformation of petroleum products increases, and the degree of soil purification from petroleum hydrocarbons at the initial stage (during the first 30 days) increases. The most effective is the introduction of thermally activated vermiculite and glauconite-containing rock with immobilized hydrocarbon-oxidizing bacteria. The use of a biogeosorbent based on thermally activated vermiculite can reduce the cleaning time to 20–22 months, and based on glauconite-containing rock – up to 17 months, while without treatment this period will be at least 29 months.
(in Russian, стр.11, fig. 7, tables. 2, ref 27, AdobePDF, AdobePDF 0 Kb)