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In-situ remediation of petroleumcontaminated soil by application of plantbased surfactants toward preventing environmental degradation

Okoro, Emeka Emmanuel and Okafor, Ikechukwu and Sanni, Samuel Eshorame and Obomanu, Tamunotonjo and Taiwo, O. S. and Igbinedion, Paul (2021) In-situ remediation of petroleumcontaminated soil by application of plantbased surfactants toward preventing environmental degradation. International Journal of Phytoremediation.

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Abstract

Remediation in this study employs the use of green plants and their extracts in enhancing the remediation process of polluted soils. GC-MS & FTIR techniques were employed in determining the constituents of the soil during the investigation. 60 ml of the extracts were applied on 1 by 2 ft segments of hydrocarbon polluted site and observed for two months. The results show that plant extract A significantly reduced the TPHs and PAHs to 5,450 and 126.2 mg/kg, respectively, as compared to those of extract B whose TPH and PAH values are 10,432 and 362.3 mg/kg, respectively. Both plant extracts reduced the total petroleum hydrocarbon compounds significantly when compared to the standard reference PAH and PAHs (4,500 mg/kg and 50 mg/kg respectively). The microbial plate count for the three media shows that the plant based surfactant had a synergy with the identified bacteria in enhancing Phytoremediation of the crude oil polluted site. Novelty statement: This study examined the application of two plant-based surfactants for remediation. These natural surfactants significantly reduced the petroleum hydrocarbon compounds present in the soil within the in-situ observation window. These Herbaceous plant family extracts have a great advantage as an eco-friendly alternative to synthetic surfactants, and they also exhibited an anti-fungi characteristic. The two biodegradable plant-based surfactants also significantly reduced the time that it could have taken for a remediation process.

Item Type: Article
Uncontrolled Keywords: In-situ phytoremediationpetroleum hydrocarbonplant-based surfactantpoly-aromatic hydrocarbons
Subjects: Q Science > QH Natural history > QH301 Biology
T Technology > TN Mining engineering. Metallurgy
T Technology > TP Chemical technology
Divisions: Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User: Mrs Patricia Nwokealisi
Date Deposited: 24 Feb 2021 10:00
Last Modified: 24 Feb 2021 13:19
URI: http://eprints.covenantuniversity.edu.ng/id/eprint/13847

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