12th Class Biology Environmental Issue And Environmental Pollution

  • question_answer 64)
      What are the basic characteristics of a modern landfill site. List any three and also mention the reasons for their use.

    Answer:

                      Characteristics of a modem landfill includes (i) Methods to contain leach ate such as lining clay or plastic liners. (ii) Compaction 'and covering of the waste to prevent it from being blown by wind. (iii) Installation of a landfill gas extraction system to extract the gas for use in generation of power. The use of modem landfill sites must be promoted due to the following reasons (i) They stimulate the waste prevention via recycling and recovery of waste. (ii) They create a uniform cost for the disposal of waste which consequently will prevent the necessary transport of waste. (iii) They prevent or reduce the negative effects on the environment, as well as the risks to human health arising from the landfilling of the waste.


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