MENEN – In 2016, Ad Rem built one of world’s largest systems for the separation of heavy ASR (automotive shredder residue) in Scandinavia. The separation line is capable of separating 50T/h of input material into plastics, magnesium, aluminium and heavy metals.
With this project, our customer will increase its processing capacity of heavy shredder residues from 40.000 tonnes to 150.000 tonnes per year. “This project is a big step for Ad Rem and will help determine our future”, says Brian Noppe, General Manager at Ad Rem nv. “In spite of the tough period in recycling, we were able to close the deal. Thanks to this project we were able to employ dozens of workers in and outside of our company.”
The material which enters the line is going through a preparation step which includes sieving and wind sifting. Afterwards the material is being washed in a specially developed washing drum before it enters the first dense medium separation step.
The first dense medium separation step is used to separate a plastics mix from the rest of the material. The plastics mix is then clean enough to be further processed on a plastics recycling line. The heavies from the first density step are sent to a second step which is running at a density of 2.2SG. In the second step the magnesium and compound plastics are separated from the metals mix.
The third step is the most important and most difficult step. In a dense medium drum with density 3.2SG, the aluminium is effectively separated from the heavy metals. The high grade aluminium is then sold to smelters for secondary production.
200.000 tonnes CO2 reduction
To recycle aluminium, 92% less energy is needed compared to the production of primary aluminium. Furthermore, the emission of greenhouse gasses is also reduced by 92%. Every tonne of aluminium produced from recycled scrap prevents 8 tonnes of CO2 emission. Our customer will annually recycle about 22.500 tonnes of aluminium, which comes down to 200.000 tonnes of CO2 reduction. This is the equivalent of emissions from 42.000 cars over one full year.
Ad Rem is investing a lot in research and development to stay ahead of the competition. At the end of 2016 a new R&D project was started in close cooperation with recycling group Galloo and Belgian university KU Leuven to analyse the fluid currents inside of the dense medium drums. With the results from this study, Ad Rem will be able to further optimize the separation efficiency.