Two Birds with One Stone: Bioplastics and Food Waste Anaerobic Co-Digestion

Environments

Sarah Kakadellis¹  Zoe M. Harris¹  Po-Heng Lee² 

[1] Centre for Environmental Policy, Imperial College London, London SW7 1NE, UK;Department of Civil & Environmental Engineering, Imperial College London, London SW7 2AZ, UK;

关键词: bioplastics;    food waste;    anaerobic digestion;    biodegradation;    waste management;    circular economy;   

DOI  :  10.3390/environments9010009

来源: DOAJ

【 摘 要 】

Following the BBC’s Blue Planet II nature documentary series on marine ecosystems, plastic packaging has come under public fire, with consumers demanding greener alternatives. The biodegradable properties of some bioplastics have offered a potential solution to the global challenge of plastic pollution, while enabling the capture of food waste through anaerobic digestion as a circular and energy-positive waste treatment strategy. However, despite their increasing popularity, currently bioplastics are being tested in environments that do not reflect real-life waste management scenarios. Bioplastics find their most useful, meaningful and environmentally-sound application in food packaging—why is there so little interest in addressing their anaerobic co-digestion with food waste? Here, we provide a set of recommendations to ensure future studies on bioplastic end-of-life are fit for purpose. This perspective makes the link between the environmental sustainability of bioplastics and the role of food waste anaerobic digestion as we move towards an integrated food–energy–water–waste nexus. It shines light on a novel outlook in the field of bioplastic waste management while uncovering the complexity of a successful path forward. Ultimately, this research strives to ensure that the promotion of bioplastics within a circular economy framework is supported across waste collection and treatment stages.

【 授权许可】

Unknown