Open AccessMathematical Modeling of Heavy Metal Percolation in Lube-Oil Contaminated Soil: A Case Study of Epe Automobile Mechanic Village
Author(s) -
Olubunmi Ayobami Duduyemi,
A.A. Moronkola,
K. A. Adedeji
Publication year - 2020
Publication title -
engineering and techology research journal
Language(s) - English
Resource type - Journals
ISSN - 0794-2834
DOI - 10.47545/etrj.2020.5.2.059
Subject(s) - percolation (cognitive psychology) , contamination , environmental science , metal , porosity , heavy metals , soil contamination , environmental engineering , soil water , environmental chemistry , chemistry , geotechnical engineering , soil science , materials science , geology , metallurgy , ecology , neuroscience , biology
Indiscriminate disposal of automobile lube-oil especially around mechanic workshops was evident by the inability of plants to grow in some batches of the operation environment. The relevance of certain heavy metals and their bio-toxic effect on man and the mechanisms of their biochemical activities were investigated. A mathematical model for the transport and transformation of solute contaminant through two cases of soil columns characteristics of clay and sandy from surface to the ground water was developed and the governing equations solved numerically by orthogonal numerical technique and simulated with computer algorithm. The result shows that at a depth of 20meter from the soil surface, the concentration decreases from about 0.075 kg/m3, while it decreased to about 0.01kg/m3. At a depth of about 90 meters from the surface, the concentration of lead remained the same at about 0.01 kg/m3. The major finding in the present study indicates that as time increases, the concentration of the lead increases. Also the higher the porosity of the soil the higher the concentration with time and as the depth increases, the concentration decreases. The analysis can help predict when the water table may become contaminated with leached heavy metals