School of Civil Engineering, University of Leeds, Woodhouse Lane, LS2 9JT Leeds, United Kingdom.
School of Civil Engineering, University of Leeds, Woodhouse Lane, LS2 9JT Leeds, United Kingdom.
Waste Manag. 2018 May;75:149-159. doi: 10.1016/j.wasman.2018.02.009. Epub 2018 Feb 10.
The European Commission (EC) recently introduced a 'Circular Economy Package', setting ambitious recycling targets and identifying waste plastics as a priority sector where major improvements are necessary. Here, the authors explain how different collection modalities affect the quantity and quality of recycling, using recent empirical data on household (HH) post-consumer plastic packaging waste (PCPP) collected for recycling in the devolved administration of England over the quarterly period July-September 2014. Three main collection schemes, as currently implemented in England, were taken into account: (i) kerbside collection (KS), (ii) household waste recycling centres (HWRCs) (also known as 'civic amenity sites'), and (iii) bring sites/banks (BSs). The results indicated that: (a) the contribution of KS collection scheme in recovering packaging plastics is higher than HWRCs and BBs, with respective percentages by weight (wt%) 90%, 9% and 1%; (b) alternate weekly collection (AWC) of plastic recyclables in wheeled bins, when collected commingled, demonstrated higher yield in KS collection; (c) only a small percentage (16%) of the total amount of post-consumer plastics collected in the examined period (141 kt) was finally sent to reprocessors (22 kt); (c) nearly a third of Local Authorities (LAs) reported insufficient or poor data; and (d) the most abundant fractions of plastics that finally reached the reprocessors were mixed plastic bottles and mixed plastics.
欧盟委员会(EC)最近推出了“循环经济一揽子计划”,设定了雄心勃勃的回收目标,并将废塑料确定为需要大幅改进的优先领域。在这里,作者利用 2014 年 7 月至 9 月期间在英格兰权力下放地区收集的家庭消费后塑料包装废物(PCPP)的最新经验数据,解释了不同的收集方式如何影响回收的数量和质量。在英格兰,目前有三种主要的收集方案:(i)路边收集(KS),(ii)家庭废物回收中心(HWRC)(也称为“公民便利场所”),以及(iii)带来地点/银行(BS)。结果表明:(a)KS 收集方案在回收包装塑料方面的贡献高于 HWRC 和 BS,各自的重量百分比(wt%)为 90%、9%和 1%;(b)当用轮式垃圾桶混合收集时,可回收塑料的隔周收集(AWC)在 KS 收集方面表现出更高的产量;(c)在所检查的时期(141kt)内,收集的消费后塑料总量(141kt)中只有一小部分(16%)最终被送到回收商(22kt);(c)近三分之一的地方当局(LAs)报告说数据不足或数据不佳;(d)最终到达回收商的最丰富的塑料部分是混合塑料瓶和混合塑料。