全球南方国家废旧电器和电气设备回收的塑料管理挑战:欧洲和拉丁美洲的案例比较

IF 4.6 Q2 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY
Recycling Pub Date : 2023-09-15 DOI:10.3390/recycling8050071
Cecilia Chaine, Andrew S. Hursthouse, Iain McLellan, Evi Viza, Jan Miller
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引用次数: 0

摘要

正在制定关于废弃电气和电气设备(WEEE)的立法,但基础设施有限的国家可能会在其他更强大的系统中找到制定适应性强且在社会经济上可行的管理计划的工具。在电子产品的塑料中发现的添加剂,如溴化阻燃剂(BFRs),是安全系统的组成部分,但引入的特性导致其废物是危险的。已建立的和正在形成的监管体系需要实施影响报废电子电气设备管理的立法,以减少对人类健康和环境的风险,同时最大限度地利用从各种各样的材料中回收资源的机会。为了评估发达和新兴监管体系的背景,对苏格兰和乌拉圭的报废电子电气设备塑料进行了基线研究。为了鉴定塑料中的溴化阻燃剂,在不同的加工操作中采用了一种国际认可的x射线荧光筛选方法。据观察,在苏格兰,Br作为BFR示踪剂的阈值为830 mg/kg,超过70%的塑料可回收,而在乌拉圭,这一比例降至50%。这些结果以及更广泛的文献讨论强调了监管框架对回收材料的质量和可回收性的影响。我们确定了决策者为实现更可持续的监管方法而应考虑的未来行动。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Challenge of Plastic Management for Waste Electrical and Electric Equipment Recycling in the Global South: A Case Comparison between Europe and Latin America
Countries with emerging legislation on the waste electrical and electric equipment (WEEE), but limited infrastructure, may find in other, more robust, systems the tools to develop adaptable and socioeconomically viable management schemes. Additives found in the plastics in electronic goods, such as brominated flame retardants (BFRs), are components of a safety system, but introduce characteristics that result in their waste being hazardous. Established and emerging regulatory systems need to implement legislation that impacts the management of WEEE, to reduce risks to human health and the environment, while maximising opportunities for resource recovery from widely varying materials. To assess the context of developed and emerging regulatory systems, a baseline study was undertaken of WEEE plastics in Scotland and Uruguay. For the identification of BFRs in plastics, an internationally validated screening methodology using X-ray fluorescence was adopted at different processing operations. It was observed that, using a threshold of 830 mg/kg for Br as a BFR tracer, in Scotland, more than 70% of the plastics would be recyclable, while, in Uruguay, that fraction dropped to 50%. These results, and the wider literature discussion, highlight the impact that regulatory frameworks have on the quality and recyclability of recovered material. We identify future actions to be considered by policy-makers for a more sustainable regulatory approach.
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来源期刊
Recycling
Recycling Environmental Science-Management, Monitoring, Policy and Law
CiteScore
6.80
自引率
7.00%
发文量
84
审稿时长
11 weeks
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