Application of biological preparation for bioremediation of oil-contaminated soils of the tank farm

• Published in: IOP Conference Series: Earth and Environmental Science
• Main Authors: Popova, N I, Glyaznetsova, Yu S, Erofeevskaya, L A
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: IOP Publishing 2019
• Subjects: permafrost
• Online Access: http://dx.doi.org/10.1088/1755-1315/320/1/012036; https://iopscience.iop.org/article/10.1088/1755-1315/320/1/012036/pdf; https://iopscience.iop.org/article/10.1088/1755-1315/320/1/012036

Abstract The paper presents the results of an experiment on the biological purification of permafrost soils from oil pollution with use biological preparations on the basis of hydrocarbon-oxidizing microorganisms. Biological preparations were used in two modifications - in liquid form as a suspension and in dry form as a suspension immobilized on organic granules. It has been established that dry form of a biological preparation is more effective for the purification of permafrost soils from oil than a liquid microbial suspension. For 1 month in dry conditions and a strongly alkaline soil environment, the use of a dry biological preparation allowed reducing the concentration of oil pollution by up to 60 %. The change of the chemical structure of extracts of soil samples was investigated with use the method of IR-Fourier spectroscopy. The increase of the relative absorption coefficients of oxygen-containing groups and bonds pointed (indicated) on the course of oxidative destruction.