Bioremediation of Oil-Polluted Soils Using Humic Substances and Microorganisms

Zhanar Kassenova1,Email

Bolat Yermagambet1

Maira Kazankapova1

Kuanysh Tastambek1,2,3,4,Email

Nuraly Akimbekov2,3,5

Marzhan Kozhakhmetova2

Bekzat Kamenov2

Nussipov Damir2

Nazym Altynbay2

Dinara Sherelkhan2

Mukhtar Slamiya1

Dina Imbayeva1

1LLP "Institute of Coal Chemistry and Technology", Astana, 010013, Kazakhstan
2Sustainability of Ecology and Bioresources, Al-Farabi Kazakh National University, Al-Farabi Ave. 71, Almaty, 050040, Kazakhstan
3Ecology Research Institute, Khoja Akhmet Yassawi International Kazakh-Turkish University, Turkestan, 161200, Kazakhstan
4Department of Biotechnology, M. Auezov South Kazakhstan University, Shymkent, 160012, Kazakhstan
5Scientific-Practical Center, West Kazakhstan Marat Ospanov Medical University, Maresyev Str. 68, Aktobe, 030019, Kazakhstan

Abstract

The pollution of terrestrial soils with petroleum and its derivatives presents considerable ecological challenges, thus requiring the development of efficacious remediation methodologies. This analysis investigates the application of humic substances and microorganisms in the rehabilitation of soils contaminated by oil. Humic substances, recognized for their capacity to improve soil structure and fertility, function as natural chelators, facilitating the degradation and extraction of hydrocarbons. Microorganisms, especially those possessing hydrocarbon-degrading attributes, are integral to the bioremediation process. The synergistic utilization of these biological agents expedites the breakdown of oil contaminants, thereby enhancing soil vitality and productivity. Empirical field trials and controlled laboratory investigations reveal that the combined application of humic substances and microorganisms markedly diminishes hydrocarbon concentrations in polluted soils. This methodology not only alleviates the ecological repercussions of oil contamination but also fosters sustainable land management and ecosystem restoration. The results emphasize the promise of amalgamating natural substances and microbial processes within effective soil rehabilitation strategies.