Numerical Model of Pollution Transport Through Porous Media

Shallow unconfined aquifer is one of the major sources for drinking and irrigation in many countries of the world. Groundwater contamination by nitrate is a major problem in the area having intensive agricultural or farming activities. A two-dimensional steady-state solute transport model has been developed in this study to simulate movement of non-point sources of Nitrate pollution in heterogeneous porous media. A Matlab code has been developed to solve the groundwater flow and solute transport equations by using finite difference methods. The proposed solute transport model is used to simulate non-point source of nitrate pollution in an agriculture-intensive region of Northwest Bangladesh.