Abstract：
The explosive growth of China\'s express delivery industry has greatly increased plastic waste, with low-value plastics not effectively utilized, such as PE packaging bags, which are often not recycled and end up in landfills or incinerators, causing significant resource waste and severe plastic pollution. A gate -to- grave life cycle assessment was adopted to assess the impacts of express delivery plastic waste (EDPW) management models (S1, landfill; S2, incineration; S3, mechanical pelletization), with Suzhou, China as a case. Results showed that mechanical pelletization, was the most environmentally advantageous, exhibiting a comprehensive environmental impact potential of -215.54 Pt, significantly lower than that of landfill (S1, 78.45 Pt) and incineration (S2, -121.77 Pt). The analysis identified that the end-of-life disposal and sorting stages were the principal contributors to environmental impacts in all three models, with transportation and transfer stages of residual waste having minimal effects. In terms of all environmental impact categories, human carcinogenic toxicity (HTc) emerged as the most significant contributor in all three scenarios. Specifically, S1 exhibited the most detrimental effect on human health, while S2 and S3 showed positive environmental impacts. Based on these findings, it is recommended that the application and innovation in mechanical recycling technologies be enhanced, the promotion of the eco-friendly transformation of packaging materials be pursued, and a sustainable express delivery packaging recycling management system be established. These strategies are essential for achieving more eco-friendly management of EDPW, reducing its environmental pollution, and moving towards more sustainable express delivery management practices.
摘要：
中国快递业的爆炸式增长大大增加了塑料垃圾，低价值塑料没有得到有效利用，如PE包装袋，通常不会被回收并最终进入垃圾填埋场或焚化炉，造成严重的资源浪费和严重的塑料污染。采用了从大门到坟墓的生命周期评估，以评估快递塑料垃圾（EDPW）管理模式（S1，垃圾填埋场；S2，焚烧；S3，机械造粒）的影响。苏州，中国作为一个案例。结果表明，机械造粒，对环境最有利，表现出-215.54Pt的综合环境影响潜力，显著低于填埋(S1，78.45Pt)和焚烧(S2，-121.77Pt)。分析确定，在所有三个模型中，报废处置和分类阶段是对环境影响的主要贡献者，剩余废物的运输和转移阶段影响最小。就所有环境影响类别而言，人类致癌毒性（HTc）在所有三种情况下都是最重要的因素。具体来说,S1对人类健康表现出最有害的影响，而S2和S3显示出积极的环境影响。基于这些发现,建议加强机械回收技术的应用和创新，推行包装材料的环保改造，建立可持续的快递包装回收管理体系。这些策略对于实现更环保的EDPW管理至关重要，减少环境污染，并走向更可持续的快递管理实践。
