Friend or foe: Stakeholder attitudes towards biodegradable plastic packaging in food waste anaerobic digestion
Friend or foe: Stakeholder attitudes towards biodegradable plastic packaging in food waste anaerobic digestion
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朋友还是敌人：利益相关者对食物垃圾厌氧消化中可生物降解塑料包装的态度
DOI：
10.1016/j.resconrec.2021.105529
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Kakadellis S
中科院分区：
文献类型：
--
作者：
Kakadellis S
消费者越来越关注食品供应链中的可持续性问题，并要求零售商跟上他们不断变化的期望。塑料污染的视觉特性加强了公众对塑料包装环境影响的认识。在这种背景下，生物降解塑料已被推广为传统聚合物的替代品，提供了解决难以回收的塑料的潜力，同时与食物垃圾回收兼容。鉴于全球越来越多的人认识到食物垃圾是一种未开发的资源，以及即将出台的政策要求从2023年起在欧盟范围内分别收集家庭和商业食物垃圾，厌氧消化是一种特别有前途的战略，可以为向循环废物管理实践的过渡做出重要贡献。然而，目前还没有“可消化”包装的工业标准。我们的研究解决了利益相关者对食物垃圾厌氧消化中生物降解塑料包装处理的态度。我们对一系列利益相关者进行了19次半结构化访谈，包括生物废物回收部门、零售业、政府机构和环保慈善机构。定性数据被归类为基于归纳和演绎策略的主题节点。内容分析表明，对生物降解塑料的看法存在很大分歧。虽然大多数答复者承认生物可降解塑料的优点，但对它们与目前厌氧消化基础设施的兼容性（例如系统的拆包、保留时间）及其最终的生物可降解性提出了关切。鉴于这些问题，讨论了潜在的解决方案，并强调了立法和消费者教育在确保厌氧消化行业能够容纳这些新材料方面可以发挥的作用。
Consumers are becoming increasingly attuned to sustainability issues in the food supply chain and demanding retailers to keep pace with their changing expectations. The visual nature of plastic pollution has strengthened public awareness of the environmental impact of plastic packaging. Against this backdrop, biodegradable plastics have been promoted as an alternative to conventional polymers, offering the potential to tackle hard-to-recycle plastics while being compatible with food waste recycling. Given increased recognition of food waste as an untapped resource worldwide and the incoming policy mandating separate collections for household and commercial food waste across the EU from 2023, anaerobic digestion is a particularly promising strategy and can make an important contribution to the transition to circular waste management practices. However, currently no industrial standard exists for ‘digestible’ packaging. Our research addresses stakeholder attitudes towards the treatment of biodegradable plastic packaging in food waste anaerobic digestion. We conducted 19 semi-structured interviews with a range of stakeholders, including the biowaste recycling sector, retail, governmental bodies and environmental charities. Qualitative data were categorised into thematic nodes based on inductive and deductive strategies. Content analysis showed significantly divergent views on biodegradable plastics. Though most respondents acknowledged the merits of biodegradable plastics, concerns over their compatibility with the current anaerobic digestion infrastructure (e.g. systematic depackaging, retention times) and their ultimate biodegradability were raised. In light of these issues, potential solutions are discussed and the role that legislation and consumer education can play in ensuring that the anaerobic digestion sector can accommodate these novel materials are highlighted.
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