In-situ remediation of petroleum-contaminated soil by application of plant-based surfactants toward preventing environmental degradation.

Autor: Okoro EE; Petroleum Engineering Department, Covenant University, Ota, Nigeria., Okafor IS; Petroleum Engineering Department, Nile University, Abuja, Nigeria., Sanni SE; Chemical Engineering Department, Covenant University, Ota, Nigeria., Obomanu T; Petroleum Engineering Department, Federal Polytechnic of Oil and Gas, Bonny, Nigeria., Olugbenga TS; Biological Sciences Department, Covenant University, Ota, Nigeria., Igbinedion P; Petroleum Engineering Department, Covenant University, Ota, Nigeria.
Jazyk: angličtina
Zdroj: International journal of phytoremediation [Int J Phytoremediation] 2021; Vol. 23 (10), pp. 1013-1020. Date of Electronic Publication: 2021 Jan 20.
DOI: 10.1080/15226514.2021.1872484
Abstrakt: 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.
Databáze: MEDLINE
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