Integrated waste treatment

Produrre energia dai rifiuti
Acea Official
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A Orvieto in Umbria, Acea gestisce un importante polo per il trattamento dei rifiuti urbani
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A Orvieto in Umbria, Acea gestisce un importante polo per il trattamento dei rifiuti urbani
Web Acea
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A Orvieto in Umbria, Acea gestisce un importante polo per il trattamento dei rifiuti urbani
Web Acea
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A Orvieto in Umbria, Acea gestisce un importante polo per il trattamento dei rifiuti urbani
Web Acea
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A Orvieto in Umbria, Acea gestisce un importante polo per il trattamento dei rifiuti urbani
Web Acea
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A Orvieto in Umbria, Acea gestisce un importante polo per il trattamento dei rifiuti urbani
Web Acea
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A Orvieto in Umbria, Acea gestisce un importante polo per il trattamento dei rifiuti urbani
Web Acea
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A Orvieto in Umbria, Acea gestisce un importante polo per il trattamento dei rifiuti urbani
Web Acea
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A Orvieto in Umbria, Acea gestisce un importante polo per il trattamento dei rifiuti urbani
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Orvieto Plant

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 108,361 tonnes. 67% (approximately 72,500 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.

  1. The waste that arrives at the plant, except for the part destined for composting, undergoes a mechanical biological treatment to recover some of the materials.
  2. After the treatment, any materials that cannot be recovered are sent to landfills and deposited in special locations where they are treated further: compacted and covered with clay.
  3. In these conditions, the waste biodegradation process generates biogas.
  4. The biogas is entirely captured and used to produce electricity.
  5. The energy produced by the combustion of the biogas is introduced in the electricity distribution network.

In 2021, the energy produced was as follows:
- the waste treatment plant produced approximately 2.6 Mm³ of biogas and 4.7 GWh of electricity;
- the landfill produced 6.6 Mm³ of biogas and 9.3 GWh of electricity.

The Plant provided the electricity network 14 Gwh of electricity.

In Orvieto, energy production from renewable sources is also performed through a photovoltaic plant, property of Acea Produzione. In 2021 it did not generate electricity due to modernisation works.

Orvieto plant: summary data

Area served: Mainly municipalities of the province of Terni, Umbria and Lazio

35
people
employed
108,361
t/year
waste processed
3,650
t/year
Compost production
3
MWe
electric power from biogas
0*
t/year
installed electric power from photovoltaic facilities

*Did not generate energy because subject to modernisation works

Certifications

Click here to read all certifications and environmental declarations.

Deco

The company is the owner of a mechanical biological treatment (MBT) plant in Chieti, with an authorised capacity of 270,000 tonnes per year, in addition to a photovoltaic plant, a biogas plant and two landfills already exhausted or on the point of being exhausted.

Ecologica Sangro

The company manages a landfill for non-dangerous waste in Lanciano (CH) with the corresponding biogas valorisation plant.

Bio Ecologia 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.

Acque industriali

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: 95,600 t/y liquid waste treatment capacity

Pisa plant: 18,000 t/y liquid waste treatment capacity

Pontedera plant: 86,300 t/y liquid waste treatment capacity

Poggibonsi plant: 53,000 t/y liquid waste treatment capacity

Berg

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.

The maximum authorised capacity is 143,000 tonnes/year for liquid waste and 20,000 tonnes/year for solid waste.

Iseco

The company operates in the Region of the Aosta Valley in two different sectors.

The Water Sector, whose main activities are:

  • management, maintenance and construction of wastewater treatment plants and sewage networks;
  • management and maintenance of technical plants of aqueduct networks;
  • intermediation, transport and management of waste;

and the Dairy sector, whose main activities are:

  • production of whey powder and marketing of related products for zootechnical and food use;
  • processing of whey products on behalf of third parties;
  • maintenance and construction of technical equipment for dairies.

The activities are carried out in the industrial plant of Saint Marcel and in all the wastewater treatment plants of the regional territory.

 

Plants for the environment and water treatment

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.