Determination Of The Effect Of Mycoremediation On The Physicochemical Properties Of Hydrocarbon Polluted Soils Of The Niger Delta Region Of Nigeria

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Determination Of The Effect Of Mycoremediation On The Physicochemical Properties Of Hydrocarbon Polluted Soils Of The Niger Delta Region Of Nigeria

ABSTRACT

The study focused on the mycoremediation of hydrocarbon-polluted soils obtained from Niger Delta, Nigeria using indigenous fungal strains. Standard microbiological procedures were adopted for sample collection, identification and preservation; glass wares and media sterilization; sample culturing; fungi isolation, screening, identification and characterization; and physicochemical analysis and the hydrocarbon myco-degradation effects were analyzed using one way ANOVA statistical tool. The results obtained from the study showed that fungal strains (A. niger, A. fumigatus, C. brachyspora, R. microporus, and P. chrysogenum) that were isolated and utilized are significantly capable of remediating hydrocarbon- polluted soil samples and improved their physicochemical features. The study presented the fairly acidic remediation media of pH rangeof 6.21 to 6.84 throughout the inoculation period of 60 days. The whole fungal strains pose impact on the understudied physicochemical properties of the soil samples with significant improvements over their initial water holding capacity, total organic carbon content, nitrate content and phosphate content. C. brachyspora gave the highest mean remediation efficiency of 69.37% and P. microspores gave the least efficiency of 60.67%. It is therefore recommended that the potential of indigenous fungal strains be extensively understudied and applied as cost effective and eco-friendly tool for the bioremediation of hydrocarbon polluted soil sites in Nigeria.

 

Keywords: Mycoremediation, hydrocarbon, fungal strains, physicochemical properties, bioremediation

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