7/24/2019 1st Defence

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MODELING AND SIMULATION OF

MOVEMENT OF VOLATILE ORGANIC

CHEMICALS (VOC) IN THE

UNSATURATED ZONE OF THE

SUBSURFACE

BY

AJAYI KAYODE

7/24/2019 1st Defence

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INTRODUCTION

Groundwater is one of the most important resources in the world. In many

areas around the world, water supplies for industrial, domestic, and

agricultural uses are dependent on groundwater. The quality of groundwater is gradually deteriorating throughout the world.

Its pollution has passed a serious environmental problem that may damage

human health, destroy ecosystem and cause water shortage. In the cause of 

 protection and improvement of groundwater quality, it’s required to access

the potential dangers of pollution of uncontaminated aquifer, while it is

required to draw-up remediation projects for contaminated aquifer.

tool to predict pollutant distribution in groundwater is needed. !ield

e"periment cannot serve this purpose. mathematical model is the only toolthat can serve the purpose. If adequate and proper information are provided,

simulations of models can provide a forecast of future states of groundwater 

system.

OBJECTIVES OF WORK The following objectives are in mind during the course of this research.

#evelopment of a matehematical model representing $%& movement

in the subsurface.

The finite difference scheme is to be used for numerical solution of the model which employ the 'eumann boundary conditions.

&omputer simulation of the model to predict the amount of $%& at

different points in the subsurface.

#esigning and construction of a laboratory equipment to study $%&

flow in a sampled soil strata.

&omparison of the e"perimental results with the simulated results to

valiadate the developed model.

SCOPE OR RESAERCH

mathematical model is to be developed which represents the movement of 

$%& in the unsaturated (one. The model is simulated to predict the

movement of $%& in the subsurface.