Abstract
The influence of humin preparations obtained from low-moor peat by the mechanochemical method on the changes in the microflora number and hydrocarbon composition in oil-polluted soils was studied. The intense growth of the microorganisms in number especially in the oil-polluted soil was observed upon the application of humin acids (at a concentration of 0.005 wt %) extracted from mechanically processed peat. In this case, the content of the extracted bitumoids decreased down to 40 wt %. The soil microflora stimulated by the humin preparations was shown to have highly destructive oil-oxidizing activity reflected in the indices of the hydrocarbon biodegradation. The mechanochemical activation of peat allows raising the efficiency of extracting the humic acids and can be a reason for increasing the availability of their individual components and parts of molecules, including micro- and macroelements that are used by microbial cells as sources of nutrition and energy.
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Original Russian Text © A.A. Ivanov, N.V. Yudina, E.V. Mal’tseva, E.Ya. Matis, L.I. Svarovskaya, 2010, published in Pochvovedenie, 2010, No. 2, pp. 229–234.
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Ivanov, A.A., Yudina, N.V., Mal’tseva, E.V. et al. Stimulation of the activity of microorganisms by humin preparations in oil-polluted soils. Eurasian Soil Sc. 43, 210–215 (2010). https://doi.org/10.1134/S1064229310020110
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DOI: https://doi.org/10.1134/S1064229310020110