EXPANDED POLYSTYRENE (EPS)

Plastic Recycling - Expanded Polystyrene (EPS)

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Mr. Oliver Raab
Industry Manager, Environmental Technologies
Email: o.raab@rieckermann.com

The amount of EPS (expanded polystyrene) is a growing concern in light of its increased usage as lightweight packaging for food containers and foam cups, or as building material. As a result, millions of tons of EPS are being sent to landfills or incineration plants.

Conventional recycling methods of EPS waste are burdened by high transportation costs and low quality of the recycled polystyrene. Additionally, EPS waste coming from building material or insulation may contain hazardous flame retardants such as Hexabromcyclododecan (HBCD) that are not permitted to be reused.

We propose an alternative that recycles and reuses the EPS waste to produce high-quality raw material. Hazardous impurities are removed and the final product is in accordance with the Globally Harmonized System (GHS). The EPS can be transported in liquid form, thus also reducing transportation costs.

Key result

Final productGranulate weightSolvent recoveryHBCD contentSolvent content
PS granulate2.0 g/100 granulate (±10%)99% (solvent recirculation)< 100 (wt.) ppm< 1,000 (wt.) ppm

Your benefits

  • Alternative method to EPS combustion & landfill
  • Highly efficient solvent recovery (99%)
  • Pre-designed plant concepts
  • Closed-loop recycling process
  • Removal of dangerous HBCD

EPS PROCESS SCHEME

Expanded Polystyrene (EPS) Process Scheme

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