The diagram depicts the structure and operation of a contemporary household landfill. The landfill consists of multiple layers, two drainage systems, and an underground self-degradation process for household waste.
Overall, the landfill is a sophisticated system that effectively manages household waste through a combination of natural degradation and drainage mechanisms. It provides a sustainable solution for waste disposal, ensuring minimal impact on the environment.
In terms of construction, a trapezoid-shaped artificial pit is excavated deep into the ground above a natural rock layer. Subsequently, a thin layer of clay is applied to cover the pit, followed by a synthetic layer containing a drainage tank and a network of pipes.
As for operation, once household waste is deposited into the pit, it is sealed with another layer of clay on the surface. Over time, the waste naturally decomposes into a mud-like substance. Meanwhile, the by-product of this process, known as leachate, seeps down into the drainage tank, where it is stored before being converted into gas and released into the environment through the pipe system.