Available online Apr 27, 2026.

[ Original ] Volume VOL 25, Issue 1, 2026, Pages 87 - 94

---

Abstract

This study was conducted to evaluate the remediation of physicochemical properties of soils affected by fuel spills in Port Harcourt Environment. Four samples from four locations within Port Harcourt environment were investigated for four months.  The study utilized a longitudinal experimental design (or randomized block design) where four locations were monitored over a duration of four months. this work was carried out in triplicates. The findings show an increase in SEM values of temperature (30.25±0.25^oC), electrical conductivity (0.97±0.11uS/cm), sulphate (18.73±1.92mg/kg), total organic carbon (0.15±0.001%), total organic matter (0.26±0.01%), total hydrocarbon content (47.08±6.71mg/kg) and a decrease in pH (7.60±0.10) in diesel polluted soils when compared with the SEM values of control. Alternately, the concentration of phosphate and nitrate in both diesel and spent oil polluted soils reduced when compared with the control indicating a short fall in dissolved nutrients due to microbial activities. Positive remediation was seen in all the treatments used. However, a remediation mixture of 10% Sodium nitrate and 1% Potassium phosphate (10% NaNO₃ + 1% K₃PO₄) remediated better and faster than when 10% Ammonium nitrate and 1% Potassium phosphate (10% NH₄NO₃ + 1% K₃PO₄) was used, and was more economical. Thus, establishing the fact that these chemicals can serve as a good option in any remediation process of the soil.

Keywords

Physicochemical, Remediation, Fuel spill, Soils, Environment,

---

View more