The landfill is a waste by digging pits and landfills. A common way for hundreds of years. The landfill is considered to be the main method of waste management. because it is a system that has cost the investment and operation compared to other technologies. Not having to deal with more complex to handle in large quantities. Now, the development of a landfill that is friendly to the environment, such as leachate seepage from waste does not apply to groundwater.
Sanitary landfill, there are three types Area method Trench method Canyon Method of Khon Kaen has opted Trench method to fit the space available. The methods in the following order