Document Type : Research Paper
Authors
College of Environmental Sciences, Al-Qasim Green University, Iraq
10.22124/cjes.2024.7855
Abstract
The current study's goal is to see if phytoremediation can be utilized to treat soil that has been contaminated with crude oil, and it used the Cassia glauca plant, which was grown in industrially polluted soil, to do so. With four crude oil concentrations: 25, 50, 75, and 100 g/kg The soil was clayey clay with mild alkalinity and acidity, according to the results of the physical and chemical investigation. The findings revealed the impact of crude oil on various soil parameters, including low pH and high total nitrogen, moisture content, organic matter, EC, and the total carbon to total nitrogen ratio. Plant phenotypic and biochemical measurements, such as chlorophyll measurement, were also included in the study. In addition, sixteen polycyclic aromatic hydrocarbons (PAHs) were identified. As priority pollutants recognized by the US Environmental Protection Agency as naphthalene, acenaphthylene, acenaphthene, fluorine, phenanthrene, anthracene, fluoranthene, pyrene, benz[a]anthracene, chrysine, and benzene [b] in plants by extraction and chromatography utilizing HPLC analysis technique. The results show that majority of these chemicals accumulate in Cassia glauca, including: benzo[k]fluoranthene,benzo[a]pyrene,dibenz[a,h]anthracene, benzo[g,h,i]perylene, and indeno[1,2,3cd-pyrene]. After a month of testing, in the plant, demonstrating the plant's efficacy in eliminating polyaromatic hydrocarbons (PAH).
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