Abstract: Biological processes have been used to remove environmental pollutants like heavy metals and hydrocarbons through the process of Bioremediation. Bioremediation can either be ex-situ or in-situ depending on the requirement of the condition. Industrialization and urbanization has been a major cause for the increase in the number pollutants in the soil. The research was aimed at quantifying the combined activities of Pseudomonas species isolated from rice fields in reducing the amount of heavy metals (Cu, Pb, Ni, Cr and Cd). The research covered three senatorial districts of Benue State Nigeria (Zone A; Katsina-Ala and Zakibiam. Zone B; Gboko and Aper. Zone C; Otukpo and Ugbokolo). The samples were treated with the bacteria isolated at 24 hours, 48 hours and 72 hours. The results obtained were expressed in simple percentage which showed that the organism has the highest activity at 48 hours with 100% efficacy of Pb and in Zone A. In Zone B, Cr and Ni were degraded at 100% while Zone C has Pb and Cr degraded at 100%. The lowest heavy metal degradation was observed in Zone A at 17.31%, Zone B at 21.74% and Zone C at 25.49%. The findings in this study show that a combined effect of three Pseudomonas species has the best activity on the removal of heavy metals from polluted soils at 48 hours incubation period.
Keywords: Pseudomonas species, Bioremediation, Heavy metals, Pollutants.
Title: The use of Pseudomonas species AGAINST HEAVY METAL POLLUTANTS IN THE SOIL SAMPLES FROM SELECTED MECHANIC GARAGES IN BENUE
Author: Didigwu Chidiebere F, Inalegwu Bawa, F.N Onyezili
International Journal of Engineering Research and Reviews
ISSN 2348-697X (Online)
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