Closing the loop by cleaning up e-waste

For decades, waste from electrical and electronic equipment (WEEE or e-waste) has piled up throughout Europe and the world. 

Much of this contains more than just waste, including the plastic that is contaminated by chemicals, such as brominated flame retardants and antimony trioxide – additives that save lives from fire but traditionally kill any chance of recycling since they are legally classified as hazardous toxins.

However, the PLAST2bCLEANED project has addressed the urgent need for recycling this hazardous waste. Through a novel process, clean polymers, bromine, and antimony trioxide are safely recovered, supporting Europe's goal for a closed-loop recycling system.

The team behind it has developed what is being called a dissolution process. Instead of simply grinding plastic down into lower-quality flakes, which is often the case with standard plastic recycling, superheated solvents are used to dissolve the polymer entirely.

This allows them to take the hazardous additives out of the liquid solution, leaving behind a pure, clean resin, thereby allowing it to stay in the high-end manufacturing loop indefinitely.

The Dutch-based project has demonstrated considerable progress in reducing environmental impact and our reliance on imported materials, especially antimony, which is classified as a critical raw material.

A new era of regulation

Beyond the technical success of projects like PLAST2bCLEANED, a broader legislative shift in the EU is taking place. 

Under the newly implemented Ecodesign for Sustainable Products Regulation (ESPR), manufacturers are facing mandatory recycled content targets related to substances, such as bromine and antimony trioxide.

The introduction of Digital Product Passports means that the molecular purity of resins, like the ones developed in this project, will eventually be tracked.

The recovery of antimony has also gained urgent geopolitical weight under the Critical Raw Materials Act, as the EU pushes to recycle at least 25% of its own critical minerals by 2030 to reduce dependency on volatile global exports.

As such, the application of technologies like PLAST2bCLEANED’s dissolution process looks set to become all the more important as we move into an age where closed-loop, circular processes are vital to our environmental targets and our industrial sovereignty.

See more on PLAST2bCLEANED.

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