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Comprehensive evaluation of plastic flows and stocks in South Africa
Resources, Conservation and Recycling ( IF 13.2 ) Pub Date : 2021-03-29 , DOI: 10.1016/j.resconrec.2021.105567
Kunle Ibukun Olatayo , Paul T. Mativenga , Annlizé L. Marnewick

There is an urgent need to tackle the major challenge of plastic waste, as the increase in production and consumption of plastics is generating higher levels of waste. The South African government formulated a Waste Research Development and Innovation (RDI) Roadmap to facilitate the transition to a circular economy. To support this roadmap, this paper defines the plastic material flows within the country to enable the benchmarking of plastic footprints and to inform the transition to a circular economy. The flows and stocks of plastic were quantified using material flow analysis for a reference year with the most complete and recent data available. The paper presents the first known case of a Sankey diagram for plastic materials in South Africa and pioneers an approach to embed data uncertainty in a Sankey diagram and resource flows. The flow results for 2017 show an estimated 1,350,000 tons of primary plastic (24 kg/capita) and 2,742,970 tons of plastic product (49 kg/capita) were produced in South Africa, about 1,805,780 tons of primary plastic (32 kg/capita) were consumed and 2,247,323 tons (40 kg/capita) of plastic waste were generated. Furthermore, the study identified data and information gaps and underlying assumptions on waste evaluation that need to be revisited, and also proposes a new approach for a comprehensive evaluation of the recycling rate in South Africa.



中文翻译:

全面评估南非的塑料流动量和库存量

迫切需要解决塑料废物的主要挑战,因为塑料的生产和消费的增加正在产生更高水平的废物。南非政府制定了废物研究发展与创新(RDI)路线图,以促进向循环经济的过渡。为了支持该路线图,本文定义了该国内部的塑料流,以实现塑料足迹的基准化,并为向循环经济的过渡提供信息。使用参考年份的材料流量分析方法,可以利用最完整和最新的数据对塑料的流量和库存量进行量化。本文介绍了南非塑料材料Sankey图的第一个已知案例,并率先提出了将数据不确定性嵌入Sankey图和资源流的方法。2017年的流量结果显示,南非估计生产了1,350,000吨的初级塑料(24公斤/人均)和2,742,970吨的塑料产品(49公斤/人均),约有1,805,780吨的初级塑料(32公斤/人均)消耗了2,247,323吨(人均40公斤)的塑料废物。此外,该研究确定了需要重新评估的数据和信息缺口以及有关废物评估的基本假设,并提出了一种对南非的回收率进行综合评估的新方法。

更新日期:2021-03-29
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