BIOREMEDIATION OF HYDROCARBON-CONTAMINATED SOIL USING NATIVE BACTERIAL ISOLATES: A SUSTAINABLE AND ECO-FRIENDLY APPROACH

Author (s) : G.KRISHNAJAYASHREE & S.AMBIKA

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Abstract :
Environmental pollution resulting from hydrocarbon spills poses a significant threat to terrestrial ecosystems, necessitating the development of effective and eco-friendly remediation strategies. Bioremediation, which relies on the natural abilities of microorganisms to degrade pollutants, has emerged as a promising technique for restoring hydrocarbon-contaminated soil. This study focuses on harnessing the potential of native bacterial isolates for the bioremediation of hydrocarbon-contaminated soil.In this research, a comprehensive investigation was conducted to identify, isolate, and characterize indigenous bacterial strains from hydrocarbon-contaminated sites. Soil samples were collected from diverse locations with a history of hydrocarbon contamination to ensure the selection of highly adaptable bacterial strains. These isolates were then subjected to extensive screening and characterization processes to determine their hydrocarbon-degrading capabilities and tolerance to site-specific environmental conditions.The biodegradation potential of the selected bacterial isolates was evaluated through laboratory-scale microcosm studies. Controlled conditions were established to mimic the physicochemical properties of the contaminated soil. The bioremediation process's efficiency was monitored by measuring the degradation kinetics of various hydrocarbon compounds, including aliphatic and aromatic hydrocarbons.The results demonstrated that the native bacterial isolates exhibited substantial hydrocarbon-degrading capabilities, effectively removing a wide range of hydrocarbons from the contaminated soil. The bioremediation process was found to be both efficient and cost-effective when compared to conventional remediation techniques. Additionally, the native bacterial isolates demonstrated remarkable adaptability to the specific environmental conditions of the contaminated sites, enhancing the overall success of the bioremediation process.Furthermore, the study highlights the importance of using native bacterial isolates in bioremediation, as these strains are better adapted to local conditions, reducing the risk of introducing non-native organisms that may disrupt the ecosystem. The application of native bacterial isolates in the bioremediation process ensures a sustainable and eco-friendly approach to restore hydrocarbon-contaminated soil.In conclusion, this research demonstrates the efficacy of bioremediation using native bacterial isolates as a viable solution for the restoration of hydrocarbon-contaminated soil. The findings contribute to the growing body of knowledge on sustainable environmental remediation techniques, emphasizing the importance of harnessing the natural potential of indigenous microorganisms to combat hydrocarbon pollution effectively. Implementing such bioremediation strategies can lead to significant advancements in environmental conservation and remediation practices, ensuring the protection and preservation of our delicate ecosystems.

Keywords : Environmental pollution , bioremediation,Physicochemical properties.

Conference Date : 30/08/2019

Pages : 183-184

Paper ID : 19177