TOMRA Sorting is urging metal reprocessors and MRF operators in the UK to double the value of their Zorba material by opting for sensor-based sorting technology as an alternative to dense media plant treatment.
The majority of metal reprocessors currently either sell Zorba (shredded non-ferrous metals originating from End-of-Life Vehicles or WEEE) as a low grade material, or pay a third party to collect and treat it using dense media plants.
Upgrade mixed material on site
However, sensor-based sorting technology gives metal reprocessors – and in fact all UK MRF owners – the opportunity to upgrade their mixed metals material on site and sell it onto the market without involving third parties.
By combining two automated TOMRA Sorting solutions – TITECH xtract and TITECH combisense – it is possible to remove any heavy metals from aluminium scrap to produce a melt-ready aluminium fraction, and then to sort the remaining heavy metals by colour to recover clean fractions of copper, brass and mixed heavy grey metals.
Brian Gist, UK Sales Engineer for TOMRA Sorting, comments: “The dense media plants historically used by metal reprocessors to increase the value of Zorba really are an old, inefficient and costly way to treat this valuable and in-demand waste stream. The cost of running sensor-based sorting equipment is just 20 per cent of that of dense media plants. Furthermore, with sensor-based sorting, metal reprocessors and MRF operators alike could achieve top market prices for their high quality recovered material. The financial benefits make for a strong argument against dense media plants.
“With the market for recovered mixed metals worth millions of pounds, it makes better sense for metal reprocessors and forward-thinking MRF operators to cut out the third party processing costs and recover high quality fractions rather than trade in poor quality material.”
Flexibility with sensor-based sorting technology
Sensor-based sorting technology also offers much more flexibility than dense media plants and can work in conjunction with existing processing methods. TOMRA Sorting is already seeing UK metal reprocessors taking a modular approach to investing in its, where companies are purchasing equipment in stages, each with a typical payback period of only six to 36 months. This helps to keep costs down and represents a major advantage over dense media plants, where the whole system must be purchased upfront.
Tel: +49 (0)4103 1888 126