Mechanical biological treatment facility for MSW
The Mechanical Biological Treatment Plant for MSW located in Casoni, Chieti, with an authorized capacity of 270,000 tonnes / year of waste is among European top plants as regards technology and size
The Mechanical Biological Treatment Plant for MSW, realized in full compliance with the recent European legislation transposed at national level by the D.L. 152/06, enables the recovery and the energy valorisation of Residual Municipal Waste (i.e. the residual part of Separated Waste Collection)
The working process starts with the reception of the waste in the pit and its subsequent mechanical treatment, taking place in an area where an appropriate suction system prevents unpleasant odours from escaping. At this stage, radiometric measurements are also carried out, although they are not compulsory, making sure that no radiation at all comes from the waste collected at the plant assuring in this way absolute quality of the produced fuel.
The second phase is the biological treatment, consisting in biostabilization of the residual wet and, therefore, biodegradable fraction of waste, in order to dry and sanitize the material so as to obtain a reduction in putrescibility as well as a 20% reduction in weight.
The bio-stabilization process is handled with a series of fans conveying the air sucked in into underground pipes and from here to bio-filters, ensuring the elimination of odours as well as the continuous control of the evolution of the process.
Refinement for SSF production, finally, involves a series of mechanical operations (screening – aerial separation – secondary shredding – separation of ferrous and non-ferrous metals), all aimed at the production of SSF for energy valorisation.
The adopted environmental principals consist of constant controls, mainly conducted by external bodies (laboratories) with recognized and certified equipment, personnel and methods, and mainly concern the control of the main sources of pollution such as: emissions released into the atmosphere and spread, groundwater, water discharges, waste, internal/external noise.