Plastic waste is the last straw, says UK
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Plastic waste is the last straw, says UK www.ukri.org
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elevision programs rarely change thinking on materials policy let alone provoke new research initiatives. But that is exactly what happened in the wake of Sir David Attenborough’s latest BBC TV series, Blue Planet II, which aired last fall. Among many images, these episodes—a follow-up to the first series broadcast in 2001—showed scenes of empty bottles and other plastic debris littering the seabed and the shorelines, and killing sea life. The impact of these images in the UK, with front page coverage, prompting speeches from the Prime Minister, Theresa May, along with statements in Parliament by the Chancellor of the Exchequer (chief financial minister), with promises of policies to discourage the UK’s use of single-use plastics. The most important move on research was the announcement of a new Plastics Research and Innovation Fund (PRIF).
The media interest also prompted businesses to jump in. Ikea, the global home furnishings retailer, announced that by October 2018, stores in the UK and Ireland would “no longer offer and sell single-use plastic straws.” Fast food outlets such as McDonald’s, which had already announced trials of paper straws, quickly followed suit. The research focus was £20 million for the PRIF, managed by UK Research and Innovation (UKRI) and delivered through the Engineering and Physical Sciences Research Council (EPSRC), Innovate UK, and the Natural Environment Research Council (NERC). Science Minister Sam Gyimah said that the aim of the research will be “to come up with new technology and also new plastics that do not harm the environment so much.” A further impetus to quell the uncontrolled disposal of plastic waste came in a
report last spring from the Organisation for Economic Co-operation and Development (OECD), Improving Markets for Recycled Plastics (doi:10.1787/9789264301016). This report put the failure to recycle some plastic down to the fact that it is still cheaper to make new plastic than to recycle plastic. The OECD highlighted several areas where research is needed, including chemical recycling, “technological processes that convert polymers into their constituent molecules, which can then be used as feedstock for new plastics, fuels or other petrochemicals.” One project in this area was the subject of a recent article in the Journal of Cleaner Production (doi:10.1016/j. jclepro.2018.03.205). Researchers at Aston University described work that created road surfacing material by the pyrolysis of “real municipal waste samples received from a local waste treatment plant” to create a material that they call bio-bitumen. The researchers believe that their research could add to the armory of recycling technologies. According to lead author Yang Yang, a researcher in biomass pyrolysis, “If the product is largely produced and widely applied, we would have a better way to convert our waste, including nonbiodegradable plastic waste, into a high-value construction material, instead of current disposal practices such as landfill
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