- Location: Catania
- Coord. UTM (Zone 33S):
503,250 E – 4,136,770 N
- Site area: 4.00 ha
- Covered surfaces for treatment and storage: 11,700 m²
- Construction period: in the authorization phase
- Estimated cost: 22,000,000.00 €
- Assignment: Preliminary and final design, Environmental Impact Study and AIA (Environmental Integrated Authorization) proceedings
- Operations according to All. B and C at Part IV of D.Lgs. 152/06 s.m.i.: D9, D14, D15, R5, R13
- Rain water storage: 160 m³
- Leachate storage: 200 m³
Thermal desorption section
- Maximum potentiality: 40 ton/hour
- Type of input waste: contaminated soils with organic substances (e.g. hydrocarbons)
- Average specific electric energy required: 26 kWh/ton
- Average specific thermal energy required: 540 kWh/ton
- Air flow: 80,000 m³/hour
- Maximum potentiality: 14 ton/hour
- Type of input waste: contaminated soils with inorganic substances (e.g. heavy metals)
- Average specific electric energy required:
- Air flow: 63,000 m³/hour
Emission treatment system
Cyclone – Thermal Oxidizer – Dry scrubber – Baghouses – VOC abatement towers
The combined facility for the contaminated soil treatment combines the advantages of using the process of thermal desorption for the removal of organic contaminants (e.g. hydrocarbons) to those resulting from the use of the inertization process for the stabilization of the inorganic contaminants (e.g. heavy metals).
The thermal desorption system (with a potentiality of 100,000 ton/year) is able to treat contaminated soils with operating temperatures below 650 °C; it has the following advantages, compared to other traditional systems of incineration of the contaminants: the treatment doesn’t have emissions of dioxins and furans; the decontaminated soil still retains the original mechanical properties and it can therefore be used for industrial purposes; the treatment costs are certainly lower.
The inertization system (with a potentiality of 50,000 ton/year) is based on the stabilization process, that is used for decades, for the stabilization of hazardous contaminants within a solid compact matrix which is also stable over time. Using the appropriate reagents, cement and water the process also blocks the contaminants that are more dangerous and difficult to treat, such as cromoVI, ammonia, arsenic and mercury.
The facility offers clear advantages in terms of both treatment times (less than those of other traditional systems) and economic, managing to convert hazardous waste into non-hazardous. The soil remediation, which is often too expensive and environmentally costly, is so encouraged.