Study of the effectiveness of bioredemediation of oil-contaminated meadow soils of the south of the Tyumen region

Nikiforov Arthur Sergeevich, Sivkov Yuri Viktorovich

The paper presents the results of field studies of various variants of bioremediation of oil-contaminated meadow soils. The effectiveness of the studied methods was evaluated both directly - by reducing the level of residual content of petroleum products, and indirectly-by assessing the phytotoxicity of selected samples in the laboratory. As a result of the conducted research, the residual content of petroleum products was reduced depending on the applied scheme from 47.52 to 70.82 %. The method of combination of a biological preparation and a sorbent (vermiculite) showed the greatest efficiency. However, when assessing phytotoxicity, the best results were shown by the site where the biopreparation was used in combination with potassium HUMATE.

Keywords:bioremediation, phytotoxicity, oil pollution, soil, humates.