07 May 2024 --- Tomra and Krones are partnering with Styrenics Circular Solutions (SCS) for the mechanical recycling of extruded polystyrene (XPS) food trays, based on the “high” purity mechanical recycling process developed for yogurt pots. Building on the high sortability of all polystyrene (PS) types, Tomra first used “deep sorting” to produce a pure XPS feedstock from mixed PS sorted from separately collected household packaging waste. Krones then shredded, hot washed, dewatered and dried this feedstock. Dr. Michael Gotsche, head of Krones Recycling, says: “We are pleased to have demonstrated with these trials that our leading washing technology also works for XPS food trays.”
