CSIRO and partners take aim at ending plastic waste

CSIRO and partners take aim at ending plastic waste CSIRO is developing a major research program to tackle plastic waste and reimagine the future of plastics. The Plastics Mission, one of 12 missions in development by CSIRO, is using science and technology to address Australia’s plastics waste issue.

Each year, 90 billion tonnes of primary materials are extracted and used globally for plastics. Only 9% is recycled, with economic, social, environmental and health impacts. In Australia, we generate an estimated 67m tonnes of waste every year. CSIRO Senior Principal Research Scientist Dr Denise Hardesty said CSIRO was working with collaborators through the Plastics Mission to apply technological solutions to the entire plastics supply chain and prevent rubbish ending up in the environment. “Our research is helping to understand the extent of plastic pollution in Australia and globally, and how to reduce it,” Dr Hardesty said. “Rethinking plastic packaging is just one way of reducing waste, through better design, materials and logistics. We can also transform the way we use, manufacture and recycle plastics by creating new products and more value for plastics.” New solutions under development include plastics detection using artificial intelligence, implementing and optimising waste monitoring systems, and establishing recycling standards and best practices to reduce contamination. Machine learning and camera sensor technologies Machine learning and camera sensor technologies are fasttracking data collection to detect and classify items of rubbish in our rivers. This project, in partnership with Microsoft, helps inform waste management strategies, highlighting where intervention is needed to stop plastic from entering waterways. Microsoft Australia chief technology officer Lee Hickin highlighted the importance of supporting the efforts to aid in the development of a national baseline to measure litter accumulation in the environment, which was key for measuring and reacting to change. “Microsoft artificial intelligence image recognition is underpinning the identification of plastic pollution,” Hickin said. “By using AI to accelerate the detection and classification of rubbish in our waterways, we can simply react more quickly and work to improve the quality of water faster than if done manually.” Camera sensor technologies are also being applied to waste traps, commonly used by councils to prevent rubbish flowing through stormwater drains into the environment. City of Hobart Lord Mayor Anna Reynolds said the City was working with CSIRO to develop an autonomous sensor network to provide real-time reporting on the amount of rubbish being captured. “Gross pollutant traps capture rubbish that ends up in stormwater drains,” Reynolds said. “But maintenance can be costly and timeconsuming. By tapping into CSIRO’s modelling capabilities, we can optimise our operations to avoid the release of pollutants, while improving safety and reducing environmental harm.” Turning resources to riches CSIRO is also collaborating with Chemistry Australia and their Plastics Stewardship Australia initiative to inform ways to more sustainably use, re-use and recycle plastic products. Director Strategy Energy and Research for Chemistry Australia Peter Bury said new technologies and initiatives to recover and transform what are important resources into commodities supports the UN’s Sustainability Development Goals and can help drive Australia’s circular economy. “With a pending export ban for Australian waste, the time is now to address the plastic waste problem,” Bury said. “Leading science will help establish standards to ensure product security and inform decisionmaking. Leveraging the capability of industry for plastic products at their end of life will also generate new types of products and design, and help build new industries and jobs across a range of sectors.” CSIRO Missions Program CSIRO is working with government, universities, industry and the community on a new missions program to bolster Australia’s COVID-19 recovery and build long-term resilience. The program of large-scale, major scientific and collaborative research initiatives is aimed at solving some of Australia’s greatest challenges, focused on outcomes that lead to positive impacts, new jobs and economic growth. CSIRO’s Plastics Mission to end plastic waste is one of 12 missions in development. Early collaborators working to co-design a mission to end plastic waste include: • Chemistry Australia and Plastics Stewardship Australia.

Working together on initiatives to support the sustainable use and recovery of plastics. This includes establishing best practices and standards to ensure product reliability, food security, sustainability; and partnering with Operation Clean

Sweep to prevent plastic pellet loss into the environment. • Hobart City Council. Pilot project partner for cameras to measure waste flows and smart sensor and decision support technologies to reduce costs, increase safety and better manage gross pollutant trap assets. • Microsoft. Computer vision technologies from Microsoft are enabling CSIRO researchers to detect and classify the rubbish in rivers, infer litter abundance and distribution, and inform councils and decision makers in order to build more suitable policies and waste management systems. • NSW Government. CSIRO is supporting the Regional Growth

NSW Development Corporation on a program of long-term engagement in the NSW Special Activation Precincts in Parkes,

Wagga Wagga, Moree, Snowy Mountains and Williamtown.

Its collaboration with the NSW Government as well as NSW universities and industry in these Precincts will assist to accelerate NSW economic recovery by creating future industries and highly skilled jobs. • Ocean Protect. Ocean Protect is an implementing partner for gross pollutant traps in stormwater drains to optimise performance, reduce costs and increase safety. • Standards Australia. CSIRO is working with Standards

Australia to design and implement a clear set of guidelines for plastics recycling and recycled content to decrease contamination and increase the value of recycled stocks.

Coles and Victorian recycling organisations RED Group and Replas plan to install a concrete slab carpark made partly out of recycled soft plastics.

Under installation at Coles Horsham, the carpark is the first commercial construction project in Australia to make use of Polyrok – a sustainable alternative to aggregate minerals used in concrete, such as stone. Made from plastic bags and soft plastic packaging recovered from the REDcycle program, Polyrock has the potential to divert 105,000 tons of soft plastics from landfill each year, if used in commercial concrete projects across Australia. Fiona Lloyd, Coles State Construction Manager – Victoria, said this was the first time the product had been used in a commercial environment. “As one of Australia’s largest food retailers, we know how important it is to support initiatives that help to close the loop with soft plastics,” she said. “This project alone will help repurpose approximately 900,000 pieces of soft plastic, to be used in the carpark at the soon-to-be-competed Coles Horsham redevelopment. We’ve worked with RED Group, Replas and RMIT University throughout the whole development process and we’re excited to see how we can use this technology in more of our stores.” Replas Joint Managing Director Mark Jacobsen said: “Coles, Replas and RED Group are leading the way on recycling the soft plastics that are returned to Coles supermarkets. This new carpark will be built using Polyrok, a sustainable alternative to mineral aggregate in concrete, made from the soft plastic packaging returned to REDcycle bins at Coles. “Polyrok reduces the carbon footprint due to the reduced thermal mass it provides. This tackles the plastic problem and climate change all while being fit for purpose. If innovative products like this were adopted in all buildings and car parks, the collective reduction in greenhouse gasses would be enormous.” Trevor Evans, Assistant Minister for Waste Reduction and Environmental Management, welcomed the collaboration to find innovative and practical ways to reuse soft plastics. “There is huge potential and opportunity for infrastructure projects to help us build a more circular economy,” Assistant Minister Evans said. “This is why the Federal Government has prioritised the development of new national standards and guidelines to encourage the use of recycled content in roads and other projects.” Coles has worked with REDcycle since 2011, becoming the first major Australian supermarket to have REDcycle bins in every supermarket. Since the partnership began, Coles and its customers have diverted over 1.3bn pieces of soft plastic from landfill.

Fiona Lloyd, Coles State Construction Manager Victoria, at Coles Horsham with polyrock aggregate made from recycled plastic.