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
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
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 sorting and recycling urban waste, anaerobic digestion and quality composting of recycled urban waste, and disposal of non-dangerous special waste in landfills. The main objectives, in line with all applicable regulations, are to increase the amount of recycled materials and energy and reduce the amount of waste in landfills.

In Orvieto there are two energy plants powered by biogas produced by the anaerobic section of the waste treatment plant and by landfills. In 2020, the plant’s intake of waste was 106,477 tons. Of this, 60% was sent to the composting sections with anaerobic digestion facilities to produce quality compost and electricity and for mechanical biological treatment, while the rest, approximately 67,700 tons of waste, was disposed of in landfills.

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 2020, the energy produced was as follows:
- the waste treatment plant produced approximately 2.5 Mm3 of biogas and 5.3 GWh of electricity;
- the landfill produced 8.3 Mm3 of biogas and 12.3 GWh of electricity.

The Plant provided the electricity network 16.5 Gwh of electricity.

In Orvieto, energy from renewable sources is also produced by a photo-voltaic plant, owned by Acea’s production division, which in 2020 produced approximately 239 MWh of energy used to cover part of the plant’s energy consumption.

Orvieto plant: summary data

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

35
people
employed
73,216
t/a
waste processed
4,618
t/a
Compost production
3,0
MWe
electric power from biogas
515
kWe
electric power from photovoltaic
106.477
t/year
amount of waste intake at the plant

Certifications

Click here to read all certifications and environmental declarations.

Bio Ecologia Plant

The Bio Ecologia plant in Chiusi is a development in the area of liquid waste management, which deals with special, non-hazardous urban liquid waste. More specifically, it is a multi-function platform equipped for the chemical, physical and biological processing of liquid waste. The plant also carries out organic biomass treatment for urban waste water. 

Chiusi Plant: 99,900 t/y authorized incoming waste and 70,000 t treated waste in 2020.

Acque industriali

We provide liquid waste recovery and treatment services through Acque Industriali.
The company designs and builds plants mainly linked to water, sludge, and waste treatment.
In collaboration with regional and national research bodies, it also carries out research and development in the relevant sectors with the aim of reducing the impact on the environment.

Acque Industriali plants are based 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

In the sludge treatment sector, we operate in Frosinone’s industrial area through Berg, a company active in the chemical/physical and biological treatment of liquid waste using a consolidated technology.
Berg owns a plat for the treatment of liquid waste – completely renovated in 2015 – with a capacity of 130,000 t/y and a capacity of 20,000 t/y for solid waste.
The construction of two new plants is currently underway.

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.