The use of annual beard grass in phytoremediation of petroleum-contaminated soils

Nayyef M., Azeez and Dunya A., Al-Abbawy and Enas A., Al-Nabhan (2023) The use of annual beard grass in phytoremediation of petroleum-contaminated soils. Journal of Sustainability Science and Management (Malaysia), 18 (8). pp. 87-97. ISSN 2672-7226

This greenhouse study investigated the ability of annual beard grass Polypogon monspeliensis to phytoremediation oil-contaminated soils. The research aimed to assess the plant’s potential for removing oil from contaminated soils. Total Petroleum Hydrocarbon (TPH) levels were measured before and 30 days after planting in soils contaminated with 20, 30, 40, 50, and 60 grams of crude oil per kilogram of soil. The results showed that P. monspeliensis effectively reduced petroleum contamination, with the plant achieving a 64.85% reduction in treatment at 20 g/kg. The study also evaluated shoot height and root fresh and dry weight. Only treatment 60 g/kg resulted in a significant decrease in plant height compared to the control. Plant shoot height increased in the 20 g/kg and 30 g/kg petroleum-contaminated treatments. The fresh and dry weight of the root increased in the 20, 30, and 40 g/kg treatments but decreased in the 50 and 60 g/kg treatments. Shoot height increased in the 20 and 30 g/kg treatments, while root fresh and dry weight increased in the 20, 30, and 40 g/kg treatments. Results indicated that P. monspeliensis was significantly influenced by TPH concentration. In most treatments, the translocation factor was > 1 except for treatment 60 g/kg. The plant investigated in this study demonstrated a good capacity for transferring hydrocarbons from the root.

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Abstract

This greenhouse study investigated the ability of annual beard grass Polypogon monspeliensis to phytoremediation oil-contaminated soils. The research aimed to assess the plant’s potential for removing oil from contaminated soils. Total Petroleum Hydrocarbon (TPH) levels were measured before and 30 days after planting in soils contaminated with 20, 30, 40, 50, and 60 grams of crude oil per kilogram of soil. The results showed that P. monspeliensis effectively reduced petroleum contamination, with the plant achieving a 64.85% reduction in treatment at 20 g/kg. The study also evaluated shoot height and root fresh and dry weight. Only treatment 60 g/kg resulted in a significant decrease in plant height compared to the control. Plant shoot height increased in the 20 g/kg and 30 g/kg petroleum-contaminated treatments. The fresh and dry weight of the root increased in the 20, 30, and 40 g/kg treatments but decreased in the 50 and 60 g/kg treatments. Shoot height increased in the 20 and 30 g/kg treatments, while root fresh and dry weight increased in the 20, 30, and 40 g/kg treatments. Results indicated that P. monspeliensis was significantly influenced by TPH concentration. In most treatments, the translocation factor was > 1 except for treatment 60 g/kg. The plant investigated in this study demonstrated a good capacity for transferring hydrocarbons from the root.

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Item Type:	Article
AGROVOC Term:	grasses
AGROVOC Term:	phytoremediation
AGROVOC Term:	polluted soils
AGROVOC Term:	petroleum
AGROVOC Term:	research
AGROVOC Term:	sampling
AGROVOC Term:	plant growth
AGROVOC Term:	soil chemicophysical properties
AGROVOC Term:	pollution control
AGROVOC Term:	environmental protection
Geographical Term:	Iraq
Uncontrolled Keywords:	Sustainability, beard grass, hydrocarbons, oil, phytoremediation.
Depositing User:	Nor Hasnita Abdul Samat
Date Deposited:	20 Mar 2025 04:18
Last Modified:	20 Mar 2025 04:18
URI:	http://webagris.upm.edu.my/id/eprint/1631

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