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Landfill for non-hazardous waste in Cordenons

Vinchiaruzzo (PN)

  • 1 / 1   Landfill for non-hazardous waste in Cordenons

The non-hazardous waste landfill is located in an agricultural area to the east of the village of Cordenons (PN) and near the Cellina-Meduna firing range. Structurally, it is a typical lowland landfill, with part of the reservoir excavated and the other part raised to a maximum of 82.40 m above sea level. The plant is primarily intended to receive waste from the treatment cycle of urban and similar waste from plants located in the region.

Page update 28 June 2019

 
    Type of landfill
    non-hazardous waste according to Ministerial Decree 27/09/2010 with cells dedicated solely to the disposal of waste containing asbestos (EWC 170605*)
    Operation
    starting July 2019
    Expected saturation
    approximatel seven years (July 2026)
    General characteristics of the landfill
    area under concession, NCT Fg5, map 513, Municipality of Cordenons (PN): 200,000 m2 Waterproofed surface of cells 1-2-3-4-5-6-7-8: 138.585 m2
    Total usable volume
    cell no. 1: 76,704 m3 cell no. 2: 70,470 m3 cell no. 3: 60,371; cell no. 4: 64,392 m3 cell no. 5: 78,125 m3 cell no. 6: 132,473 m3 cell no. 7: 136,285 m3 cell no. 8: 160,731 m3 Total 779,551 m3

    Waste accepted for storage in the landfill must comply with the requirements of the Operational Management Plan approved by the competent authorities.

    Waste will be handled and loaded into the landfill, taking care to minimise the impact on the environment, using the waste to form overlapping, compact layers in order to maximise the density of the waste placed in the landfill; the cultivation will advance by standardised layers, with stable fronts, and with a slope of <30%. At the same time, infiltration from rainfall must be reduced to minimise the formation of leachate, by covering with synthetic geomembranes the waste placed in areas temporarily not cultivated.

    At the end of each working day, the waste must be covered with a continuous sheet of LDPE or HDPE.

    Cells 3 and 4 will be used for the disposal of EWC 170605* waste coming from the implementation of safety measures of the heap present on site and having an estimated volume of about 90,000 m3. At the end of each working day, this type of waste must also be covered with a continuous sheet of LDPE or HDPE.

    The amount of leachate produced will be collected in the landfill body through a drainage network with slotted pipes and draining material. From the landfill bottom of each lot, the leachate will be conveyed by gravity to some collection/pumping wells that feed the storage tanks through dedicated piping, and from there the leachate will be sent to authorised treatment plants.

    The biogas produced by the landfill will be taken from a vertical collection system consisting of drainage wells, which, through a specific surface supply network (HDPE pipes), will first convey it to the regulation substation and then to the pumping station.

    The biogas extracted will initially be sent for thermal destruction in a high-temperature torch, and possibly, depending on the quantity and quality of it, be recovered to produce energy in a cogeneration plant.

    From the bottom to the top, the following waterproofing package has been built in accordance with Italian Legislative Decree 36/2003:

    • Bottom barrier made of compacted clay, thickness 100 cm;
    • Bentonite geocomposite bed;
    • 2.5 mm thick HDPE geomembrane;
    • Protective geotextile sheet;
    • Layer of fine sand (20 cm thick);
    • 3 mm thick PE geo mesh;
    • Gravel layer for the bottom drainage of leachate (thickness 30 cm).

    Design for the final condition, in accordance with Italian Legislative Decree 36/2003, involves adding a multi-layer roof consisting of the following layers from top to bottom:

    • 1 m thick layer of topsoil on which the plant species specified in the environmental restoration plan are to be planted;
    • Geotextile membrane for separation;
    • 0.50 m thick infiltration water drainage layer;
    • 2.5 mm thick HDPE geomembrane;
    • 0.50 m thick layer of soil made of compacted clay and a hydraulic conductivity of ≤10-8 m/s;
    • Geotextile membrane for separation;
    • 0.50 m thick biogas drainage layer

    To allow the environmental recovery of the site, the operator, in agreement with the local authorities, has identified a series of mitigation/compensation works to be carried out within and in the area surrounding the landfill. An environmental improvement project will be prepared in an area outside the landfill site and preferably located within or adjacent to the Magredi di Pordenone SPA (Special Protection Area), covering an area at least equal to that used by the landfill. The work will be verified and approved by the competent authorities.

    The environmental compartments and emissions monitored as environmental surveillance of the potential impacts of the landfill are:

    • Groundwater
    • Leachate
    • Biogas composition
    • Emissions conveyed to the biogas torch
    • Emissions from the landfill body
    • Air quality
    • Noise
    • Odour
    • Landfill body morphology
    • Weather and climate parameters
    • Incoming waste and products (quality and quantity of leachate).
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