Keywords
Contamination
Heterotrophic
Physicochemical
Microbial
How to Cite
Abstract
Remediation by poultry manure (RPM) is a farming treatment technology, which relies on biological processes to cleanup pollution in soil. In this study, remediation by poultry manure was employed on oil contaminated site in Otuogidi town at Bayelsa State of Nigeria. 200g of the polluted soil samples were distributed in four sterile containers labeled A, B, C, and D. 100g, 200g, 300g and 0g of manure were added to the soil samples respectively. Then the total heterotrophic bacteria and fungi, hydrocarbon utilizing bacteria and fungi, total petroleum hydrocarbon, moisture content, sulphate content, nitrate content, phosphate content, soil pH and temperature were determined. The total heterotrophic bacteria counts ranged from 5.00 X 102 to 3.91 X 105cfug-1 and fungi ranged from 2.40 X 102 to 2.00 X 103cfug-1. The hydrocarbon utilizing bacteria counts ranged from 3.20 X 102 to 3.02 X 104cfug-1 and fungi which ranged from 5.00 X 101 to 3.60 X 102cfug-1. In the crude oil contaminated samples, the values of total petroleum hydrocarbon, pH and temperature were greatly influenced by high rate of microbial activities including high humidity which has a great impact in any given sample. This made the microbial and physicochemical properties of the soil samples to vary with the different concentrations of nutrient supplement and at different periods of remediation. Therefore, poultry manure is an effective method of remediating crude oil polluted soil.
References
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