ANALYSIS OF THE USE OF MATHEMATICAL MODELS FOR CALCULATION OF SOIL POLLUTION BY OIL SLUDGE

Kravtsov Mikhail Valerievich, Orlova Daria Dmitrievna

The article presents a comparative analysis of existing mathematical models and the possibility of their use in the process of assessing the degree of soil contamination by oil products and the possibility of restoring the soil cover using chemical and biological methods of its purification. The article substantiates the use of mathematical modeling methods to assess the degree of soil contamination by oil products and the choice of the most effective biological method of their purification without the use of long-term analytical studies, which will provide the opportunity to maximally reduce environmental damage through operational measures for restoration. Particular attention is paid to the search for an optimal mathematical model that allows the most accurate calculation of the degree of soil contamination and the time for its remediation, taking into account the choice of biopreparation. The models consider the processes of transfer and transformation of the object of pollution in homogeneous soil, transfer in water-saturated soils with deep and close groundwater table taking into account equilibrium sorption (characterized by linear isotherm of exchange), as well as non-equilibrium irreversible sorption. Models that take into account the influence of various factors on the spread of contamination, such as temperature, soil moisture, presence of vegetation and others, are considered.

Keywords:mathematical modeling, oil sludge, neutralization of contaminated soil, bioremediation, biological methods