Vol. 9 pp. 145-160

E. A. Gudkova, V. Y. Solovyova, T. S. Titova

 

EFFICIENCY OF RESTORATION OF LANDS CONTAMINATED WITH COAL TAR BY MICROORGANISMS

 

Annotation This paper presents an innovative technology for the restoration of soils contaminated with coal tar hydrocarbons using a consortium of microorganisms Arthrobacter sp., Bacillusbrevis ("Lenoyl-SKhP") and Acinetobacter sp. ("Destroyl"), as well as the enzyme lipase ("Liprozim"). The main attention is paid to the detailed characterization of the main components of coal tar as a highly toxic hydrocarbon pollutant. The aim of the study is to select a rational combination of several effective bacterial materials based on highly active strains of microorganisms and enzymes capable of restoring territories disturbed by coal tar hydrocarbons. To achieve the set goals, complex physicochemical methods of analysis were used, including high-performance liquid chromatography and gas chromatography with a flame ionization detector, which made it possible to carry out a quantitative analysis of the component composition of aqueous extracts. The results of the study demonstrated a significant enhancement of the cleaning ability of the biomaterial upon the introduction of the lipase enzyme; this contributed to the effective utilization of hydrocarbon pollution. Optimal compositions of microorganisms and the enzyme ensuring maximum neutralization of hydrocarbon pollutants have been identified. The result of the study was a developed technology for the environmentally safe restoration of contaminated soils, which is of great importance in industrial ecology.

Keywords: coal tar, hydrocarbons, enzymes, biodegradation, biopreparation, reclamation.

For citation: Gudkova E. A., Solovyova V. Ya., Titova T. S., [Efficiency of restoration of lands contaminated with coal tar by microorganisms] Upravlenie tekhnosferoi, 2026, vol. 9, issue 1, рр. 145–160. DOI: 10.35634/UdSU.2026.17.15.010. (In Russ.).

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About the Authors

Gudkova Elena Aleksandrovna

Assistant, Head of the Department of Engineering Chemistry and Natural Sciences, Emperor Alexander I St. Petersburg State Transport University, Moskovsky Prospekt 9, St. Petersburg, Russia.

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Solovyova Valentina Yakovlevna

Dr. of Engineering, Professor, Head of the Department of Engineering Chemistry and Natural Sciences, Emperor Alexander I St. Petersburg State Transport University, Moskovsky Prospekt 9, St. Petersburg, Russia.

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Titova Tamila Semenovna

Dr. of Engineering, Professor, Head of the Department of Technosphere and Environmental Safety, Emperor Alexander I St. Petersburg State Transport University, Moskovsky Prospekt 9, St. Petersburg, Russia.

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