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What are the basic characteristics of a modem landfill site? List any three and also mention the reasons for their use.
Answers (1)
Characteristic of a modern landfill site are as follows:
(a) Methods to contain leachates such as lining clay or plastic liners: This helps in preventing the leachate from seeping into the underground aquifers. This prevents soil population and groundwater pollution.
(b) Compaction and covering of the waste to prevent it from being blown by the wind: Compaction helps in better space utilization because more waste can be accommodated in a smaller area. Covering prevents the spread of dust and harmful germs and is thus safer from a health perspective.
(c) Installation of a landfill gas extraction system to extract the gas for use in the generation of power: This enables a faster generation of methane, which can be used for power generation. In some countries, landfill sites have become important contributors to power generation.
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