Design of MBT Plant Recamping Ceresara
S.I.E.M. Società Intercomunale Ecologica Mantovana SpACeresara | Mantua - Italy
- System description: Design of composting - RDF production plant
- Waste processed: Mixed municipal solid waste
- Plant capacity: 80,000 t/year
Ecomaster has designed the revamping of this municipal solid waste treatment plant, which was built by another company in the late ’70 and produces RDF and compost. A primary shredder, with two hydraulically driven low-speed rotors, is fed with mixed municipal solid waste by means of a bridge crane equipped with a hydraulic bucket. The material coming from the shredder is processed through a rotary drum screen, which sorts waste into two flows having different particle sizes.
The undersize material, containing a high quantity of organic components, goes through a composting process in a building having a ventilation system built into the floor. Once the composting process has been completed and the material screened, inerts are separated from compost by means of two fluidized bed separators with oscillating table. On the other hand, the oversize material coming out from the screen is treated by a magnetic separator to separate ferrous materials. It is then sent to the secondary shredder that is followed by a separator of non-ferrous metals. A densifyng machine is used to produce densified RDF.
Pressure rolls push RDF through the die holes, thus ensuring material densification as well as size control. The RDF coming from this plant is used in other industrial facilities as an alternative fuel for the generation of heat and power. Ecomaster has designed the additional equipment for the revamping of this facility that includes also the construction of a new biofilter to control odours and dust.