THE EFFECT OF CHELATE ON PHYTOREMEDIATION OF CRUDE AND ENGINE OIL-CONTAMINATED SOIL USING ZEA MAYS
Authors:
ODUTAYO Foluke
Publication Type: Journal article
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Abstract
Phytoremediation, the use of vegetation for in situ treatment of contaminated soils and sediments, is an alternative approach for treatment of polluted soils. This study evaluated the growth and development of Zea mays as influenced by crude and engine oil contaminated soil and the effect of chelate. Four soil samples were treated differently with 100ml of crude oil, engine oil, 100ml of crude oil with 10ml of 0.09mol/L EDTA, 100ml engine oil with 10ml 0.09mol/L EDTA respectively. Each sample was randomized with three replications per treatment. Significant treatment effects were observed in plant height, leaf area, number of leaves and girth. The plant height of the control was significantly different (p<0.05) relative to other treatments. There was significant different between plants grown in crude oil treated soil without EDTA and crude oil treated soil containing EDTA. There was no significant difference between plants grown in engine oil treated soil without EDTA and plants grown in engine oil treated soil containing EDTA. There is evidence that Z. mays can thrive in an oil polluted soil and a good candidate for phytoremediation.