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Landfill for Non-Hazardous Waste (MSW) located in Modena AREA 3

Via Caruso 150, Modena

  • 1 / 3   Landfill MSW located in Modena AREA 3 - 1
  • 2 / 3   Landfill MSW located in Modena AREA 3 - 2
  • 3 / 3   Landfill MSW located in Modena AREA 3 - 3

Page updated on 26 August 2015

 
    Landfill type
    Non-hazardous MSW (formerly category 1), special waste similar to municipal waste, stabilised biological sludge, foundry sand, demolition and quarry materials
    Operational status
    Post-operational since 2008
    Overall capacity
    Original planned capacity of 1,410,000 m (MSW5)
    Placement type
    Metre-thick layers, side inclines

    The leachate produced by the landfill flows by gravity into the collection networks and from there to specific lifting points to be sent to an authorised treatment plant via a leachate pipe. The leachate extracted from specific perimeter extraction wells also flows into the same collection network.

    The extraction plants are connected to vertical biogas aspiration wells that are perforated over the landfills. Energy is recovered from the biogas extracted from the MSW5 landfill using an engine with electric power of 990 kW and, if the plant shuts down, it is treated using high-temperature flares. Energy is recovered from the biogas extracted from the MSW1-2-4 landfills using an engine with electric power of 625 kW and, if the plant shuts down, it is treated using high-temperature gas flaring. Biogas extracted from the MSW3 landfill is treated using specific high-temperature gas flaring.

    MSW3 and MSW4 are not equipped with an impermeable bottom and wall liner; the natural geological formation comprises cohesive deposits, predominantly clay-silt deposits. In the approval phase of the adjustment plan, as permitted by Regional Council Resolution 1530/03, a risk assessment was presented with comparison of the current condition (i.e. the characteristics of the existing compartments) and the confinement barrier envisaged by Legislative Decree 36/03, which permitted the approval thereof on the basis of compliance by equivalence (compliance by equivalence of the natural geological formation and the artificial bottom barrier system).

    The final layout project was carried out in conformity with current regulations and the top covering of the landfill essentially comprises, from top to bottom, the following layers:

    • 100 cm of topsoil;
    • rainwater drainage layer made of geocomposite;
    • sealing layer made of 50 cm of clay;
    • biogas drainage layer made of 50 cm of inert materials.

    The environmental matrices and emissions monitored as environmental surveillance of the potential impact of the operational management of the landfill are:

    • rainwater;
    • groundwater;
    • surface water;
    • leachate;
    • monitoring of biogas composition;
    • landfill emissions;
    • air quality;
    • noise monitoring.
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