Impact of plastic bag bans on retail return polyethylene film recycling contamination rates and speciation.
Impact of plastic bag bans on retail return polyethylene film recycling contamination rates and speciation.
复制标题
塑料袋禁令对零售退货聚乙烯薄膜回收污染率和形态的影响。
DOI：
10.1016/j.wasman.2021.08.043
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发表时间：
2021
期刊：
影响因子：
8.1
通讯作者：
J. Atkinson
中科院分区：
文献类型：
--
作者：
Jenna Meert;Austin Izzo;J. Atkinson
塑料薄膜是丰富的，但很少在美国回收。回收塑料薄膜在经济上和操作上都具有挑战性，因为它们重量轻，难以积累材料。此外，在美国的大多数路边回收计划中，不允许使用薄膜，因为它们缠绕在材料回收设施（MRF）使用的设备上，并影响MRF有效分类其他材料的能力。因此，美国消费后塑料薄膜的唯一回收途径是零售退货收集计划。目前，在美国，只有最丰富的消费后塑料薄膜聚乙烯（PE）被这些计划接受。虽然PE薄膜有多种形式，但杂货袋是最知名的，因此也是零售回收流中最丰富的薄膜。纽约州（NYS）塑料袋废物减少法禁止分发一次性塑料袋。这项工作探讨了如何结束分发杂货袋影响零售返回回收计划的PE电影在西纽约。我们发现，最可识别和丰富的PE薄膜的损失导致污染率增加1.4 - 2.8倍，使仍然收集的薄膜贬值。因此，污染率的增加可能会威胁到这一回收途径的可行性。这项研究还提供了一个完整的物种形成这种再循环流与一个新的细节水平，因为现有的研究对这种再循环途径是有限的。
Plastic films are abundant, but seldom recycled in the United States (US). It is both economically and operationally challenging to recycle plastic films because their light weight makes accumulating material difficult. Additionally, films are not allowed in most curbside recycling programs in the US because they tangle around equipment used at material recovery facilities (MRFs) and effect a MRFs’ ability to effectively sort other materials. As a result, the only recycling pathway for post-consumer plastic films in the US is retail return collection programs. Currently, only the most abundant type of post-consumer plastic film, polyethylene (PE), is accepted by these programs in the US. Although PE films come in many forms, grocery bags are the most well-known, and therefore most abundant, film in the retail return recycling stream. The New York State (NYS) Plastic Bag Waste Reduction Law prohibits the distribution of single use plastic bags. This work explored how ending the distribution of grocery bags impacted retail return recycling programs for PE films in Western New York. We show that a loss of the most recognizable and abundant PE film results in a 1.4 – 2.8x increase in contamination rates, devaluing films that are still collected. As a result, increased contamination rates may threaten the viability of this recycling pathway. The study also provides a complete speciation of this recycling stream with a novel level of detail, as existing research on this recycling pathway is limited.
影响因子：
4.8
作者：
Amienyo, David;Gujba, Haruna;Azapagic, Adisa
通讯作者：
Azapagic, Adisa