Determining the Contaminants of Dispersion on Groundwater by Landfill Leachate

This chapter aims to study the dispersion of contaminants by leachate, employing generalized-dispersion technique. Most of the contaminants occur in nature as either point sources or distributed sources. The major potential environmental impacts related to landfill leachate are pollution of groundwater and surface waters. To date, the percolation of bacteria and viruses through landfill leachate into the groundwater table poses a potential risk and potential hazards towards the public health and the ecosystem. Solute transport in porous media is discussed by means of advection-dispersion equation. The Beavers-Joseph (BJ) slip boundary conditions are used at the interface of the porous layers. The governing equations are solved analytically and the expressions for velocity and dispersion are obtained. The results are presented through graphs.