Assessment of changes in the phytotoxic properties of oil-contaminated soils in terms of germination and seedlings length of Lepidium sativum L. after electrochemical cleaning

Different variants of electric treatment technology are used to solve environmental, technological and agro-melioration problems. This paper assesses the change in the properties of contaminated soil during cleaning by passing small amperage through it. The paper contains the results of the study of changes in the toxic properties of soil contaminated with oil and mineralized formation water at oil production after electrochemical treatment. A biotesting technique with Lepidium sativum L. is used for an integrated assessment of the hazardous properties of contaminated soil after electrical treatment. This biological test object has a high responsiveness to the presence of pollutants in soil and water, as well as the ability to rapidly germinate. The main parameters during the study are the percentage of seed germination and the total length of seedlings (underground and aboveground parts). A statistical analysis of the data is carried out. The phytotoxicity of contaminated soil is compared before and after cleaning. The conclusion is drawn about the potential suitability of this method for the full restoration of natural plant communities at the pollution territory, as well as for conducting complex phytoremediation.