By obtaining energy from waste and sewage sludge using waste-to-energy processes, Italian electricity production could increase by 55% over 2020
Waste is delivered to the plant and discharged into the collection and mixing tank, and then loaded for energy recovery into the boilers, the temperature of which is regulated at around 1,000 degrees. The heat produced from combustion generates high-pressure steam which is fed into a turbogenerator to produce electricity. The steam is also fed into the cogeneration plants to produce thermal energy which is used to heat the water for the district heating grid or to provide heat for other industrial activities instead of using fossil fuels.
All the plants are equipped with innovative emission treatment systems (i.e. the flue gas cleaning section) that lower the pollutant content by several orders of magnitude on the way from the combustion chamber to stack emission. The flue gases are purified using specific technologies depending on the substances to be treated:
The purified fumes are subsequently conveyed as gaseous emissions to the stack. Here, strict emission control systems are activated, and enforced by the authorities, to constantly monitor gaseous flows and to guarantee compliance with the limits set by emissions standards.
Waste-to-energy plants also produce residues that mostly consist of a non-combustible fraction, as well as flue treatment residues. The first make up most of the residues produced, which are sent to be recovered, either as inert construction materials, or as metals (such as copper, aluminum, iron) instead of ending up in a landfill.
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Our commitment to the circular economy becomes real by exploiting any waste that cannot be recycled as a material and recovering it in waste-to-energy (WtE ) plants. We convert it into electricity using waste-to-energy facilities and, in the case of cogeneration facilities, into heat to be put into the district heating grid.
Waste to energy is the final virtuous phase of our integrated waste management cycle and offers significant advantages in terms of sustainability and safeguarding the environment, by saving energy resources, generating new value that is returned to the territory, and helping to achieve the European goal of reducing the amount of waste sent to landfills.
Treatment is totally safe and technologically innovative: the waste is carefully selected when it enters the facility and emission control is guaranteed by always monitoring emissions, which constantly remain well below the latest prescribed limits.
We have 10 waste-to-energy plants, 5 of which include high-efficiency cogeneration plants serving the urban district heating grids of Bergamo, Brescia, and Milan.
Our investment plan involves increasing our waste treatment and recovery capacity by consolidating our leading position in the Waste-to-Energy sector.
(only italian version)
By obtaining energy from waste and sewage sludge using waste-to-energy processes, Italian electricity production could increase by 55% over 2020
Did you know that bees, in their long daily flights (their range of action can be up to 2 km from the hive) 'capture' fine dust? This allows pollution levels in an area to be monitored effectively by carrying out specific tests. At the Brescia waste-to-energy plant, 400,000 bees have made their home in a completely natural way and we look after them.
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