Unit 3: Solid Wastes - Landfill

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  • Landfill - domestic, industrial and ash waste
    • Managing Landfill Sites
      • Plastic liners prevent leachate
      • Leachate collection and treatment
      • Perimeter fence traps blowing litter
      • Regular covering with soil to trap blowing litter
      • Water sprays reduce dust and odours
      • Methane collection to use as fuel
    • Disadvantages of Landfill
      • Lost resource value
      • Site uses large land areas (land conflicts)
      • Organic matter decays anaerobically and releases methane
      • Toxic leachate may leak from poorly managed sites

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