
Research by the UNSW Sustainable Materials Research and Technology (SMaRT) Centre in Sydney has discovered a new sustainable way of recycling that could initiate a new ‘green aluminium manufacturing revolution’ and help the government and aluminium industry to advance Australian manufacturing, increasing sustainability, and creating jobs.

The new way of recycling includes an innovative technique based on the microrecycling science to recover aluminium from complex, multi-layered packaging, especially polymer-laminated aluminium packaging (PLAP) materials, which include post-consumer food and coffee packaging. Pioneered by the SMaRT Centre under the leadership of its Director and Professor Veena Sahajwalla, the new technique called ‘Thermal Disengagement Technology’ is specially designed to sustainably recycle packaging materials into high-quality aluminium and a potential source of high-energy hydrocarbon products. The technology is built on the Centre’s waste materials innovations, including Green Steel and Microfactorie technologies.
Prof. Sahajwalla said, “We developed Green Steel technology where we extract hydrogen and carbon from old rubber tyres and plastic as an innovative and green pathway in steelmaking, and we now can develop new ‘Green Aluminium’ with our novel technique called Thermal Disengagement Technology (TDT).”
She added, “Recycling using new technologies can be a foundation for the manufacturing of high-quality materials from our waste resources, as we seek to develop greater sovereign capability along with economic prosperity.”
TDT can transform aluminium into a clean and green metal, allowing the metal extracted in a way that it can be used as a high-quality material for manufacturing, while minimising residual waste.
Prof. Sahajwalla also said that using this waste-reforming technology can create new supply chains and jobs, especially in regional locations, as it does not need to be a large scale or expensive.
“That is why I see a future where recycling and manufacturing are aligned, where waste and recycling become part of the manufacturing supply chain, and that is important in this new COVID era where we now highly value ‘sovereign capability’,” said Sahajwalla.
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