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The Geology of Landfills
The Geology of Landfills
The Geology of Landfills
The Geology of Landfills
The Geology of Landfills
The Geology of Landfills
The Geology of Landfills
The Geology of Landfills
The Geology of Landfills
The Geology of Landfills
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The Geology of Landfills

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  • 1. The Geology of Landfills By: Slayton Hazard-Daniel [email_address] USM-LIS 201 April 25th, 2011
  • 2. What is a landfill?
    • Carefully engineered area in the ground
    • Man-made construction or erosion of the Earth
    • Different shapes and sizes
    • Objective is to fill with wastes
    • Main goal is to keep hydraulic connection between wastes and surrounding environment
  • 3. Four Essential Parts of a Landfill
    • Bottom liner- separates trash and subsequent leachate from groundwater
    • Leachate collection system- collects water that has percolated through the landfill itself and contains contaminating substances (leachate)
    A leachate collection pond
  • 4. Four Essential Parts of a Landfill
    • Cover- seals off the top of the landfill
    • Natural hydrogeologic setting- the area in which a landfill is located must be simple and waterproof to prevent wastes from escaping
    An experimental tarp cover
  • 5. Success of a Landfill
    • Location is key
    • Must be as far from a major water supply as possible
    • Correct soil consistency
    • If the location is good, the erosion of the layers of the landfill will take decades.
  • 6. Three Main Types of Waste
    • Construction- makes up 40% of total waste
    • Household- makes up 26% of total waste
    • Industrial- makes up 34% of total waste
  • 7. Types of Waste
    • Examples:
      • Textiles
      • Metal
      • Glass
      • Organic wastes
  • 8. Impact on the Environment
    • Landfills have a huge impact on rivers, streams, and lakes.
    • Because of rain, landfills produce toxic runoff that can harm these important water sources.
  • 9. Please recycle.
  • 10. Thank you for your attention. Are there any questions?

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