Valorisation and Production of Alternative Fuels
BLUEOTTER has two RDF (Refuse Derived Fuel) production lines, one in Setubal and another in Alenquer. These lines can process up to 100,000 metric tons per year.
RDF valorisation allows to reduce the volume of landfill technical confinement, deviating a significant fraction of waste which for its characteristics, namely calorific power, may be subject to a different valorisation operation.
The RDF line of production basically consists on a pre-shredder, having a rigorous control, a magnetic splitter for the removal of iron materials, an air splitter to sort the lightest fraction and to which a higher calorific power is associated and, finally, an ultimate shredder (adjuster), which will assure that the RDF dimensions comply with the requests of energetic valorisation units (cement kilns, boilers, among others), followed by another iron splitter. There is also a metal splitter on the refuse end (heavy fraction)
The final results in respect of the quality of the RDF produced are in line with the highest quality standards pursuant to the Portuguese Standard.