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Landfilling

Landfilling. stypka @gmail.com KTH 2011. Types of landfills. According to the waste type: Hazardous waste landfills K<1*10 -9 m/s thickness over 5 m Municipal solid waste landfills thickness over 1 m Inert waste landfills thickness over 1m According to the management strategy

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Landfilling

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  1. Landfilling stypka@gmail.comKTH 2011

  2. Types of landfills • According to the waste type: • Hazardous waste landfills K<1*10-9 m/s thickness over 5 m • Municipal solid waste landfills thickness over 1 m • Inert waste landfills thickness over 1m • According to the management strategy • Total containment • Containment and collection of leachate • Controlled contaminant relase (may be anaccaptable in some EU countries) • Unrestricted contaminant release (may be anaccaptable in some EU countries)

  3. Total containment • All movement of water out of and into landfill is prevented. That means accaptance of an indefinite responsibility for the pollution risk, on behalf of future generations. (nuclear waste)

  4. Containment and collection of leachate • Inflow of water is controlled, but not prevented entirely. (by low permability basal liner and by leachate removal) • The most common strategy for MSW in developing countries. Interest to shorten the timescale of pollution risk, by accelerated leaching. (centuries to decades)

  5. Controlled contaminant release • Liner and top cover are designed to allow the generation and release of leachate at calculated and controlled rate. • Suited for cerain locations and waste ( for exp: bottom ash in the costal location)

  6. Unrestricted contaminant release • No control over either the inflow or the outflow of water. (dumps) • Inert waste in developed countries

  7. General concept

  8. Reality

  9. Landfill liner deployment

  10. compactor

  11. Landfill gas well

  12. LFG torch

  13. LFG co-generation units

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