How does the plant work?
In the plant, hazardous and non hazardous waste storage activities, non hazardous waste mixing activities and hazardous and non hazardous waste inerting activities are carried out.
In the plant, hazardous and non hazardous waste storage activities, non hazardous waste mixing activities and hazardous and non hazardous waste inerting activities are carried out.
Reception and storage
Waste delivered to the plant is subject to pre acceptance (approval) and acceptance procedures involving administrative and analytical checks.
Inerting and mixing section
The inerting process consists of mixing the waste to be treated with specific reagents or agents such as hydrated lime, cement and bentonite, in order to immobilise the pollutants and improve the physical characteristics of the waste. The reagents may be totally or partially replaced with waste having chemical or physical characteristics similar to them. Waste such as semi solid sludge and dust are treated to obtain a material with chemical physical requirements suitable for subsequent disposal/recovery. Incoming waste destined for inerting is stored in special storage bays (2 for hazardous waste and 8 for non hazardous waste). It is then loaded by mechanical shovels into the mixer in order to prepare a suitable mixture for inerting. Then it is fed to the inerter by means of special screw pumps with possible reagents depending on the treatment needed. The waste treated in this way is transferred to special storage and maturation bays and undergoes testing.
Atmospheric emissions treatment section
The storage and inerting departments are kept under a slight vacuum in order to ensure an adequate number of hourly changes of internal air and the treatment of sucked in air. The rooms are closed and equipped with fast closing roller shutter doors. Specific treatment plants are dedicated to the suction of air from the various rooms; the suction devices are then merged into a single emission point to which a treatment system consisting of a wet scrubber unit is connected. Also, there is a continuous emission monitoring system (CEMS) for the total organic carbon (TOC) on the chimney.
Waste delivered to the plant is subject to pre acceptance (approval) and acceptance procedures involving administrative and analytical checks.
Inerting and mixing section
The inerting process consists of mixing the waste to be treated with specific reagents or agents such as hydrated lime, cement and bentonite, in order to immobilise the pollutants and improve the physical characteristics of the waste. The reagents may be totally or partially replaced with waste having chemical or physical characteristics similar to them. Waste such as semi solid sludge and dust are treated to obtain a material with chemical physical requirements suitable for subsequent disposal/recovery. Incoming waste destined for inerting is stored in special storage bays (2 for hazardous waste and 8 for non hazardous waste). It is then loaded by mechanical shovels into the mixer in order to prepare a suitable mixture for inerting. Then it is fed to the inerter by means of special screw pumps with possible reagents depending on the treatment needed. The waste treated in this way is transferred to special storage and maturation bays and undergoes testing.
Atmospheric emissions treatment section
The storage and inerting departments are kept under a slight vacuum in order to ensure an adequate number of hourly changes of internal air and the treatment of sucked in air. The rooms are closed and equipped with fast closing roller shutter doors. Specific treatment plants are dedicated to the suction of air from the various rooms; the suction devices are then merged into a single emission point to which a treatment system consisting of a wet scrubber unit is connected. Also, there is a continuous emission monitoring system (CEMS) for the total organic carbon (TOC) on the chimney.
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