Abstract:
Historically, landfills have been the most common method of organized waste disposal and remain
so in many places around the world. On one hand, the properly managed landfill can become a
source of energy generation and on the other a poorly managed landfill can become a source of air
and water pollution. Solid waste landfills comprise a variety of solid, semi-solid, and small
quantities of liquid wastes. These landfills generally remain open for decades before undergoing
closure and post closure phases. During this period, contamination of air by the obnoxious gasses
produced in the landfill and contamination of groundwater by the percolation of leachate occurs.