THE UTILIZATION OF MANGO LEAF AND NANO-PARTICLE FOR TOTAL PETROLEUM HYDROCARBON DEGRADATION IN POLLUTED SOIL

OLALEKAN ADELOYE; Aseibichin Cyrus; Tamunoiduabia Ibisiki; Gift Sawyer

doi:10.4314/njt.2026.5753

Authors

OLALEKAN ADELOYE Department of Chemical Engineering, University of Delta, Agbor, Delta State.
Aseibichin Cyrus Department of Chemical/Petrochemical Engineering, Rivers State University, Port Harcourt
Tamunoiduabia Ibisiki Department of Mechanical Engineering Technology, Kenule Beeson Saro-Wiwa Polytechnic, Bori, Rivers State.
Gift Sawyer Department of Chemical/Petrochemical Engineering, Rivers State University, Port Harcourt.

DOI:

https://doi.org/10.4314/njt.2026.5753

Keywords:

Batch Reactor, Michaelis-Menten Equation,, Total Petroleum Hydrocarbons, Loamy soil, Bio-remediation,, Mango Leaf, Nano-Particle

Abstract

The research focused on the degradation of petroleum polluted loamy soil for the removal of Total Petroleum Hydrocarbon (TPH) using Mango Leaf and Nano-particle treatment methods. Mango leaf was prepared by washing with water to remove dirt’s and impurities, sun and air oven dried for complete moisture removal prior to its mechanical grinding and sieve to desired micron, while the nanoparticle was achieved by reacting magnesium chloride with sodium hydroxide and the produced nanoparticle was dried and ground to powdered form. The TPH value of loamy soil prior and after pollution was 7.73mg/kg and 15666.7mg/kg respectively. Bacteria growth rate crucial for reduction of TPH was carried out with Mango leaf and Nano-Particle treatment in a batch bio-reactor, which showed a progression across the treatment variations for different sample weight. The TPH percentage degradation in polluted loamy soil for nano-particle treatment ranges between 72.65%, and 99.17% for specific treatment weight, while the TPH percentage degradation for polluted loamy soil using the mango leaf treatment yielded between 70.43%, and 97.21% for different weight samples respectively. The rate constant, predictive model and half-life for loamy soil under mango leaf and nano-particles were also estimated and developed for the control and different weight samples respectively. The model performance indicated that the correlation between the experiment and the expected TPH concentrations by first-order rate kinetics model was 0.9769 and 0.95603 for nano-particles and mango leaf respectively, correlation between the experiment and the Michaelis-Menten equation for both methods were 0.9641 and 0.9971 respectively and correlation between first-order kinetic and the Michaelis-Menten equation yielded 0.9586 and 0.9325 accordingly for nanoparticle and mango leaf. Thus, first-order rate kinetics model predicted TPH degradation with the experimental data more accurately than the Michaelis-Menten model equation. Hence, TPH degradation in polluted soil was achieved by nanoparticle and mango leaf treatment techniques with percentage degradation of 99.17% and 97.21% for nanoparticle and mango leaf respectively at 56^th treatment day for 100g sample.

Author Biographies

OLALEKAN ADELOYE, Department of Chemical Engineering, University of Delta, Agbor, Delta State.

A Senior Lecturer at the Department of Chemical Engineering, University of Delta, Agbor, Delta State
Aseibichin Cyrus, Department of Chemical/Petrochemical Engineering, Rivers State University, Port Harcourt

Senior Lecturer, Department of Chemical/Petrochemical Engineering
Tamunoiduabia Ibisiki, Department of Mechanical Engineering Technology, Kenule Beeson Saro-Wiwa Polytechnic, Bori, Rivers State.

Department of Mechanical Engineering Technology
Gift Sawyer, Department of Chemical/Petrochemical Engineering, Rivers State University, Port Harcourt.

Department of Chemical/Petrochemical Engineering and Master Student

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