Landfill receipt capacity
total of 690,000 m3 (special waste placed in the two active landfills);
460,000 m3 in the landfill currently under construction.

Type of waste allowed
Special waste, also hazardous, solid - granular - liquid - two-phase waste.

Storage methods
The waste admitted to storage can be sent to pre-treatments such as:

• Repacking solid waste, also granular;
• Repacking liquid waste;
• Repacking two-phase waste;
• Mixing and homogenizing;
• Packing

All treatments are carried out in rooms having waterproofed bottom, restricted and kept sunk with dust removed from the aspirated air and subsequent passage through activated carbon filters.
Sensors detect any traces of flammable gases.
Waste in small barrels or containers is stored in distinct departments according to their various characteristics of danger (flash point) in order to ensure maximum safety of the entire area. The various types of waste are stored in proper containers (basins, silos and steel tanks) and all handling (unloading and transfers) is carried out with steel pipes and pumps, whereas the gaseous fumes produced are conveyed to an activated carbon purification system.

Placement in the landfill
The two landfills in operation (the former "2B super" in operation since 1993 and the former "2B super T/N" active since 2000) are equipped with the most advanced systems for insulating the bottom with materials (compacted clay, inert drainage material) and tools (sheets, facings, geogrids). A drainage network of micro-fissured pipes made of HDPE on the bottom sheet intercepts the leachate, which is then properly treated.
There are distinct sectors inside the landfill with separate basins for receiving special hazardous and non-hazardous, low biodegradable organic-content inorganic waste, and also pre-treated and stabilized waste.
The landfill now under construction will be made up of 6 basins broken down into two sectors having a total capacity of approximately 420,000 m3.

Stabilization plant
The pollutant substances contained in the special waste are stabilized via chemical-physical reactions triggered by adding reagents and water-based fluidifying agents, such as the leachate of the landfills described above. The addition of shovelled dust and sludge completes the stabilization process.
The stabilized waste is then put in a dedicated area of the landfill to await the necessary maturing and in preparation of the next transfer to the landfill, subject to analytical verification.

Chopping plant
The bales containing hazardous and non-hazardous substances, both solid and pitchy, are reduced in volume in a building confined with a waterproofed bottom. The chopper is fed by a fixed cactus-type device remote controlled by an operator inside an elevated station so as to allow visual control. It is isolated from the surrounding environment.
The rooms are fitted with suction tools, flammable gas detection sensors and a special fire-fighting system with foaming agent.