塑料食品包装的环境性能:生命周期评估扩展到对海洋生态系统服务的成本
Lieselot Boone1, Nils Préat1, Trang T Nhu1
1Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Gent, Belgium.
The Science of the total environment
|June 15, 2023
概括
传统的法拉菲尔聚烯 (PP) 包装比生物基聚3-基酸-co-3-基酸 (PHBV) 包装更可持续,尽管PHBV.
科学领域:
- 可持续的食品包装 可持续的食品包装
- 生命周期评估 生命周期评估
- 塑料对环境的影响.
背景情况:
- 塑料包装对食物损失和浪费产生重大影响,但传统的塑料会引起环境问题,如化石资源枯竭和海洋垃圾.
- 基于生物的可生物降解材料,如聚3-基酸-co-3-基酸 (PHBV),为化石塑料提供了潜在的替代品.
- 评估食品包装的环境可持续性需要考虑生产,食品保存和使用寿命末期 (EoL) 的命运.
研究的目的:
- 对PHBV和传统的聚烯 (PP) 食品包装进行全面的环境可持续性比较.
- 在生命周期评估 (LCA) 中,开发和应用一个新的指标来评估塑料垃圾对海洋生态系统的环境负担.
- 通过量化海洋生态系统服务的生命周期成本,使塑料包装能够得到更平衡的评估.
主要方法:
- 使用生命周期评估 (LCA) 方法来评估环境绩效.
- 开发了一种新的指标,量化"海洋生态系统服务的终身成本",并纳入LCA.
- 分析的重点是PHBV包装的法拉菲尔和传统的PP,考虑每公斤消费产品的影响.
主要成果:
- 食品成分对包装法拉菲尔每公斤的整体环境影响贡献最大.
- 传统的PP托盘在包装生产,EOL处理和包装相关影响方面表现出优于PHBV托盘,主要是由于质量和体积较低.
- 尽管PHBV包装质量更大,但由于其环境持久性有限,与PP相比,PHBV包装的海洋生态系统服务寿命成本约为七倍.
结论:
- 传统的PP包装在考虑生产和EOL处理时,对于falafel包装,显示出一个比PHBV更明显的环境偏好.
- 新开发的海洋生态系统服务成本指标显著改善了对塑料包装的EOL命运的评估.
- 虽然PHBV在减少海洋垃圾影响方面提供了好处,但其更高的质量和体积目前使PP成为这个特定应用中的更有利的选择,凸显了进一步材料开发和LCA改进的需要.
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