Environmental Hazards Open Dumps An Research Paper

Linear systems are constructed with layers of natural materials with low permeability. Leachate collection system is designed to remove liquid that is found in the liners. Waste is placed above the collection leachate system in layers. Modern landfills are now built in locations which protect environment and human health as well as having structural integrity. There is restriction of the construction of modern landfills in floodplains, wetland or fault areas (Repa, 2010). Once the modern landfills reach the height which is permitted it is closed down an engineered in such a way that it prevents the infiltration of water through the installation of a cap low in permeability which is same as the linear system. On top of the low-permeability barrier there is a granular drainage layer that diverts water from the top of the landfill. There is a protection cover at the filter blanket's top as well as top soil which is placed for growth of vegetation. The system of engineering in the modern landfills is in such a way that it ensures protection of environment and human health through the containing of leachate which could otherwise contaminate ground water. At the same time there is collection of gases which could be used as energy sources or even destroyed.

In Texas, the landfill...

...

This has seen the combination of flexible solar panels technology and the hitherto existing gas-to-energy system to convert the landfill to a sustainable energy park. It is indicated by Republic Services (2013) that these two system put together generate approximately 9 megawatts of power, an equivalent of power enough to power 5,500 homes within the area.

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