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16 August 2022 News Release

Australia’s national science agency, CSIRO, is unveiling the latest innovations in recycling this National Science Week to inspire the next generation of leaders who will lead our circular economy-focused future.

Students from year 6 at Marrickville Public School have joined CSIRO Chief Executive, Dr Larry Marshall, and researchers from CSIRO and The University of Technology Sydney to test a new prototype ‘Smart Bin’ and interact with construction materials made from recycled glass and polystyrene.

Smart Bin Technology uses Internet of Things (IoT), sensing, robotics, Artificial Intelligence (AI) and infrared spectroscopy technologies to automatically sort plastic, metal and glass, as well as sorting specific types of plastic. The bin is a proof of concept device designed to improve recycling rates and reduce contamination in waste streams, with NSW only recycling 10 per cent of its 800,000 tonnes of plastic waste.

It also supports turning waste into a resource. Victorian small business Casafico create commercial construction materials from recycled glass, newspaper and polystyrene, much of which is sourced through online waste exchange marketplace ASPIRE, which spun out of CSIRO in 2013.

CSIRO Chief Executive Dr Larry Marshall said innovation and collaboration were essential to developing Australia’s circular economy and are at the heart of CSIRO’s collaborative Ending Plastic Waste Mission, which has a goal of an 80 per cent reduction in plastic waste entering the Australian environment by 2030.

“Solutions from science that will grow our circular economy take collaboration at every stage of the innovation process – from understanding plastics at a molecular level to reinvent the way plastic is used, made, and recycled, through to commercialising solutions that use new technologies like this Smart Bin, which is now in discussions to go to market, and spinning out new companies like ASPIRE to grow new circular economy jobs,” Dr Marshall said.

“Science can transform our economy into a circular one that renews and reuses what we previously discarded, creates higher paid jobs, advances new Australian technology, and protects our environment, while inspiring the next generation with what’s possible – during National Science Week and throughout the year.”

CSIRO Principal Research Scientist Wei Ni said: “Smart Bin Technology could be used at venues like shopping centres, schools, cinemas, coffee shops and airports. It will improve recycling rates because it is so easy to use and could ensure that materials can be recovered for reuse.”

UTS researcher Professor Ren Ping Liu said: “Working with CSIRO, we have developed the latest IoT and AI technologies to build this amazing Smart Bin. It can simplify the recycling process and improve efficiency for waste classification and sorting. The Smart Bin will help to promote the circular economy and contribute to a carbon neutral future.”

Casafico Head of Communications, Samantha Mucci spoke to the benefits of operating in the circular economy.

“Sourcing waste materials through Aspire helps us to become carbon positive, to save scarce natural resources and divert waste away from landfill,” she said.

“We can’t underestimate how small changes can make a huge difference. It’s great to see the next generation are learning that.”

In line with the 2022 National Science Week theme ‘Glass: more than meets the eye’, CSIRO has developed curriculum-aligned lesson plans with suggested class activities around the glass, plastic and the circular economy theme made available to support teachers nationwide. This continues CSIRO’s 40-year track record of actively supporting STEM (Science, Technology, Engineering and Mathematics) learning for students and teachers with high-quality education programs.

CSIRO’s 2021 Circular Economy Roadmap found innovation could triple job creation from resource recovery by designing new products and materials, advanced manufacturing, and in embracing new business models that will create domestic and export markets for waste streams. Increasing Australia's recovery rate by just 5 per cent would add an estimated $1 billion to GDP. 

Extra information links 

National Science Week 2022: Curriculum-aligned activities for primary school classes - CSIRO 

Improving Australia's glass recycling

Ending Plastic Waste Mission

CSIRO Education and Outreach

CSIRO spokespeople available for comment

CSIRO Principal Research Scientist and Smart Bin researcher Wei Ni

CSIRO Research Scientist and Circular Economy spokesperson Dr Naomi Boxall

Program Director of  CSIRO Education and Outreach Services Ruth Carr.


The Smart Bin is located at The University of Technology Sydney. The new prototype was developed by CSIRO and The University of Technology Sydney.
CSIRO Chief Executive Dr Larry Marshall runs an experiment for National Science Week 2022 ©  Keith McInnes Photography
Year 6 students from Marrickville Public School test out the Smart Bin's recycling skills ©  Keith McInnes Photography
Year 6 students from Marrickville Public School test out the Smart Bin's recycling skills ©  Keith McInnes Photography
Year 6 students from Marrickville Public School test out the Smart Bin's recycling skills ©  Keith McInnes Photography
CSIRO Education Manager Kirsty O'Sullivan shows students from Marrickville Public School the 'tecoblocks' made from recycled glass. ©  Keith McInnes Photography
'Tecoblocks' are made from recycled glass by construction materials company Casafico. ©  Keith McInnes Photography
These four Tecoblock townhouses are Casafico’s most recent project. They feature a mix of Tecoblock blocks and Tecoblock walls, finished in Coharo Coatings, each townhouse is 20 squares, saving a total of 80 cubic meters of rubbish from landfill. Image courtesy of Casafico.
A close-up view of a sample of the Tecoblock that shows the glass aggregate and the water on top demonstrates how it repels water. Image courtesy of Casafico

B-roll video

CSIRO Chief Executive Dr Larry Marshall interacting through science experiments with Year 6 students from Marrickville Public School at the University of Technology Sydney.

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