S.P. 117 San Zanobi at 2.5 km, Il Pago, Firenzuola (FI)
The “Il Pago” landfill site receives non-hazardous waste from the Florentine plain. Structurally, the system is configured as a typical landfill slope. The basin into which the waste is deposited exploits the natural terraced morphology of the gullies, thus significantly reducing preliminary excavation work. The landfill is located in the municipality of Firenzuola (FI), around 2.5 km north of the town, in a wooded, mountain area, at an altitude of between 540 and 600 m above sea level.
The site has a practical position in light of the road system present in the area and the catchment area: Firenzuola, community of Alto Mugello and Central Tuscany territorial area.
The soil is predominantly clay.
Page updated on 26 August 2015
Landfill waste must meet and comply with the requirements of the operational management plan approved by the Province.
The handling and storage activities aim to guarantee the placement of waste with minimal environmental impact, creating overlapping, compacted layers with the waste to maximise the density of the waste. At the same time, the accumulated deposit must be maintained highly stable and the infiltration of rainwater, and thus the formation of leachate and the penetration of insects and other animals into the landfill site, must be minimised.
At the end of each working day the waste is covered with different materials, such as (from top to bottom):
The amount of leachate generated is collected in the landfill site by means of the gravel drainage network and channelled to the storage tanks by dedicated pipes. From there, the leachate is sent to authorised treatment plants.
The biogas produced is captured by means of a series of vertical drainage wells placed along a regular 15 m x 15 m grid, which are lifted as the landfill is filled. A horizontal collection network on top of every two layers of deposited waste (around every 5.00 m) connects the vertical wells.
The collection wells are in turn connected, by means of HDPE pipes, to the aspiration plant, from where the biogas is then sent to the energy recovery system.
The captured biogas is used to generate electricity; the plant consists of an eight-stroke engine with generation of 625 kWe.
In emergency situations or during scheduled down-time, the auxiliary biogas combustion system comprising two high-temperature gas flaring, each with flow rate of 500 Nm3/hr, is automatically activated.
Clay reprofiled on location, 2.5 mm thick HDPE liner, liner protected with fine sand, geotextile and drainage gravel (bottom drainage of the leachate).
In consultation with the local Authorities, the operator has identified a series of mitigating/offsetting steps to be taken in the area surrounding the landfill so as to allow natural site reclamation.
The project required a preliminary study to be carried out on existing and potential vegetation in the Alto Mugello area so as to identify the most suitable species for the plant.
Some of these steps have been implemented and others have yet to be implemented, as set out below:
The monitoring plan takes into account the specific location of the site subject to hydrogeological restrictions, flora and fauna impact and close proximity to natural areas protected by environmental and landscape protection laws. It thus aims to check: