IkponmwosaZABAYO

The experiment was conducted at Faculty of Agriculture experimental farm, located at the back of the new faculty building of the University of Benin, Benin city, with the aim to determine the potentiality of mushroom in the removal of heavy metals from spent engine oil polluted soils. The experiment was a 5m x 3m experiment in completely randomised design with 3 replications. The spent engine oil was applied and was left for 2 weeks before mushrooms were added to the soil. The Soil samples were then analyzed using Standard laboratory analytical methods. Some of the physical and chemical parameters of the soil tested were pH, total nitrogen, total organic carbon, available phosphorus, total hydrocarbon content, potassium, calcium, magnesium, and sodium. The result showed that most of the parameters tested including pH, total nitrogen, total organic carbon, available phosphorus, total hydrocarbon content, potassium, calcium, magnesium, and sodium increased at all levels of spent engine oil treatments, while the exchangeable acidity decreased at all levels of spent engine oil treatments, thereby breaking down complex detrimental element from the SEO which is finally absorb by the plant used. The result from the experiment was not significant due to the limited time used in carrying out the experiment.