The diagram illustrates the design of modern landfill site for waste from households.
Overall, the design shows three phases. Firstly it shows the construction, then the use and finally the closure of the landfill site.
The design begins with making a hole in the natural rock. Then the hole is lined with clay and a synthetic lining is placed on top of the clay. Next, a drainage tank is placed at the bottom of the hole and waste liquid is designed to be fed to this tank by drainage pipes.
The second phase is the use of the landfill site. Trucks empty household waste into the hole. The drainage tank enables waste liquid to empty into the surrounding natural rock.
Finally, the site is closed when the hole is filled completely with household waste. A pipe is put into the hole in order to enable gases to escape into the air outside. In the last stage, the top is sealed with clay, and the design process is completed.