Through its Environment division, Acea manages solid waste and other types of urban waste, such as garden waste and industrial waste, including their collection and disposal.
The main activities carried out at the plant include the sorting and recycling of urban waste, anaerobic digestion and quality composting of recycled waste and the disposal of non-dangerous, special waste in landfills. The main objectives, in compliance with current legislation, is to enhance material and energy recover and reduce the amount of disposed waste in landfills.
The two plants for energy production in Orvieto are both powered by biogas produced by the anaerobic section of the treatment plant and by landfills. In 2021, the amount of incoming waste in the plant was 97.661 tonnes. 71% (approximately 69,500 tonnes) was disposed in landfills, while the rest of it was almost entirely sent to the anaerobic digestion and composting section of the treatment plant for biogas and compost production.
The production of biogas for use in the energy production chain is one of the main activities at the Orvieto plant. It is a complex process that we try to simplify here.
In 2022, the energy produced was as follows:
- the waste treatment plant produced approximately 1,7 Mm³ of biogas and 3,2 GWh of electricity;
- the landfill produced 6.7 Mm³ of biogas and 9.5 GWh of electricity.
The Plant provided the electricity network 12 Gwh of electricity.
The Orvieto hub is also equipped with a photovoltaic system, owned by Acea Produzione, which in 2022 generated approximately 515 MWh, 99.8% of which was used for the site consumption.
Orvieto plant: summary data
Deco, operating in Abruzzo, carries out the design, construction and management of municipal solid waste treatment, disposal and recovery plants and energy recovery plants from renewable sources.
The Deco company operates in Abruzzo, managing various plants - both its own178 and those of Acea Ambiente (such as the Grasciano hub), and in particular:
• a landfill for non-hazardous waste in Casoni (Chieti), with a total capacity of over 900,000 m3, almost exhausted.
• a landfill for non-hazardous waste in Colle Cese, in the municipality of Spoltore (Pescara), with a total capacity of over 1,000,000 m3.
• a landfill for non-hazardous waste in Grasciano, in the municipality of Notaresco (called Grasciano 2), with a capacity of approximately 480,000 m3.
The first two plants mentioned above are owned by Deco, while the last is property of Acea Ambiente; from these plants, biogas is recovered to produce electricity. In 2022, Deco’s disposal plants produced 4,180,996 Nm3 of biogas and 2,656 MWh of electricity.
Moreover, Deco manages a plant for the Mechanical Biological Treatment (MBT) of Municipal Solid Waste (MSW) in Casoni (Chieti), with recovery of matter and RDF. In 2022, the plant processed 241,642 tons of waste, of which less than 35% was sent to landfills. Approximately 96,000 tons of RDF were produced, of which 58% was used in foreign cement plants as a replacement for traditional fossil fuels, while 42% in waste-to-energy plants in Italy to produce electricity
In addition, 121 t of metals (ferrous and non-ferrous) were recovered.
The company manages a landfill for non-dangerous waste in Lanciano (CH) with the corresponding biogas valorisation plant.
The Bio Ecologia plant is committed to the recovery and management of liquid waste, by carrying out a treatment of urban and special, non-dangerous waste via a multifunctional platform which performs chemical-physical and biological processes. The plant ensures the essential public service of urban wastewater treatment through a suspended-biomass biological treatment.
Chiusi plant: authorised capacity to treat liquid waste: 99,000 t/year.
The company performs activities of industrial wastewater treatment, liquid waste intermediation and treatment on multifunctional platforms with chemical-physical action processes. In collaboration with research bodies at both regional and national level, it carries out research and development activities in the relevant sectors.
Acque Industriali plants are located in Empoli, Pisa, Pontedera and Poggibonsi.
Empoli plant: Discharge capacity authorised in the public sewer amounting to 120,000 t/year
Poggibonsi plant: Discharge capacity authorised in the public sewer amounting to 53,000 t/year
For a long time involved in the field of industrial waste treatment, the company operates in the industrial area of Frosinone, carrying out intermediation and treatment of liquid waste on a multifunctional platform with chemical-physical, suspended-biomass biological and concentration processes with a vacuum evaporation section.
In 2022, approximately 93,700 tons of solid and liquid waste were treated, and approximately 6,900 tons of waste were brokered.
The company operates in the Region of the Aosta Valley in two different sectors.
The Water Sector, whose main activities are:
and the Dairy sector, whose main activities are:
The activities are carried out in the industrial plant of Saint Marcel and in all the wastewater treatment plants of the regional territory.
We are actively involved in the design and construction of plants for the environment and water treatment, in collaboration with Simam (Environmental and Industrial Management Services), a leading company in the design, building and management of water treatment and waste disposal plants,
for environment and rehabilitation interventions, with high-tech integrated solutions.
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