Grady Road Landfill

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Walker students visited the landfill and interviewed key personnel about what happens to their trash.

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Grady Road Landfill

  1. 1. What Happens at a Landfill? Walker Visits Grady Rd. Landfill 02/21/08
  2. 2. 1. What types of waste are diverted to this landfill? • MSW (Municipal Solid Waste)-85% • C&D (Construction and Demolition) -10% • Special Waste-5% (ex: industrial car stuffing, not MSW but not hazardous) • NO HAZARDOUS MATERIAL
  3. 3. 2. What are the primary sources of waste for this landfill • Restaurants • Schools • Homes • Construction sites
  4. 4. 3. How much waste do you receive on a given day? • Medium-sized land fill (60acres) • 27,000,000 cubic ft. of airspace • 180 tons from POLK, 1200 tons/day
  5. 5. 4. Is the waste separated in the landfill? • Not at Grady • Some other landfills separate between different types of waste from different sources – MSW – Construction – Yard waste
  6. 6. 5. What are the different jobs and equipment used to process the waste at the landfill? • Evacuators – clear out waste from dropping site • Compactors – increase space • Bulldozers – transport waste
  7. 7. 6. What is the basic structure of this landfill? • Phase 1 – Double cover • Phase 2 – Double cover • No chemicals to promote composition needed
  8. 8. 7. What steps do you take to prevent erosion, run-off from heavy rains, or the spreading of pathogens, and the subsequent contamination of the surrounding area? • Use liners • test the runoff for lichgate seeping through
  9. 9. 8. What water monitoring test do you conduct on the lechate (biological oxygen demand, pH, temperature, pressure, moisture content, movement of fluids)? • Groundwater wells • consultants take samples to lab and test every 3 months
  10. 10. 9. Do you collect the methane and recycle it for energy? • Not yet • 2012 – methane collection devices being installed

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