REMEDIATION OF HEAVY METALS CONTAMINATED SOILS IN PORT HARCOURT ENVIRONMENT

Abstract: This study aim to evaluate the remediation of heavy metals contaminated soils in Port Harcourt environment. Four samples from four locations within the foreshore were investigated for four months. The findings from the parameters analysed show SEM values of pH as 7.60±0.10, Temperature 30.25±0.25, Total hydrocarbon content 47.08±6.71, Zinc 6.82±0.51, Lead 0.35±0.06, Cadmium 0.0025±0.0009, Copper 0.08±0.01, Nickel 0.05±0.01mg/kg, respectively in diesel contaminated soils when compared with the SEM values of control. The effect of contaminated  and treated soils on heavy metals reveal that soils contaminated with diesel (P1) and spent oil (P2) show increase in SEM values when compared with control. However, there was a decrease in the concentration of heavy metals when soils polluted with Diesel were treated with NaNO₃ + K₃PO₄ (T1), and with NH₄NO₃ + K₃PO₄ (T2), respectively. Similarly, soils polluted with spent oil and treated with NaNO₃ + K₃PO₄ (T3), and the others treated with NH₄NO₃ + K₃PO₄ (T4) also showed a decrease in the concentration of heavy metals, respectively. It was therefore concluded that impact of heavy metals on soils aggravated by oil spills was remediated by the application of sodium nitrate/Potassium phosphate or Ammonium nitrate/Potassium phosphate, thus establishing the fact that these chemicals can serve as a good option in any remediation process of the soil. However, Ten Percent Sodium nitrate/One Percent Potassium phosphate (10% NaNO₃ + 1% K₃PO₄₎ remediated better than Ten Percent Ammonium nitrate/One Percent Potassium phosphate (10% NH₄NO₃ +1% K₃PO₄) and was more economical for the remediation of heavy metals.

Keywords: Heavy Metals, Remediation, Contaminated, Soils.

Title: REMEDIATION OF HEAVY METALS CONTAMINATED SOILS IN PORT HARCOURT ENVIRONMENT

Author: John, Godson .N., Onwugbuta, Godpower .C., Oriji Onuoh G.

International Journal of Recent Research in Life Sciences (IJRRLS)

ISSN 2349-7823

Vol. 9, Issue 4, October 2022 - December 2022

Page No: 1-7

Paper Publications

Website: www.paperpublications.org

Published Date: 20-December-2022

DOI: https://doi.org/10.5281/zenodo.7463134

Paper Download Link (Source)

https://www.paperpublications.org/upload/book/REMEDIATION%20OF%20HEAVY%20METALS%20CONTAMINATED-20122022-5.pdf