Electronic Waste Treatment Flows in Norway: Investigating recycling rates and embodied emissions

IF 1.2 Q4 ENGINEERING, ENVIRONMENTAL
Kim Rainer Mattson, Lærke Lindgreen Lauritsen, Johan Berg Pettersen
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Abstract

Norway is one of the countries in Europe generating the most waste from electrical and electronic equipment (WEEE) per capita. Extended producer responsibility schemes are incorporated as part of the national waste policy, with clear goals towards recovery of materials from the waste fraction. Investigating the WEEE flows in Norway, we observe clear improvements needed in the transparency of the sector, and based on the information gathered, we estimate lower recycling of materials than provided through official statistics based on reporting. 68% of WEEE sent to recycling treatments are recycled into reusable material. Accounting for WEEE occurring outside of the treatment system, only 58% is recovered for recycling. We also estimate the CO2-eq emissions of different End-of-Life treatments of WEEE, and the embodied CO2-equivalent emissions of each WEEE category, illustrating 1) what category carry the largest environmental burden with respect to its embedded materials, and 2) the environmental impact of specific treatment options within the system. We show how the recycling rate of precious metals have significant influence over the environmental impact recovery potential of the system. Its not just the amount of material that is recycled that is important, including a proxy for expended emissions effectively illustrates the need for more precise policy implementation to ensure a functional circular economy.
挪威的电子废物处理流程:调查回收率和内含排放量
挪威是欧洲人均产生电气和电子设备废物(WEEE)最多的国家之一。生产者延伸责任计划是国家废物政策的一部分,其明确目标是从废物中回收材料。通过调查挪威的废弃电子电气设备(WEEE)流向,我们发现该行业的透明度明显有待提高,而且根据收集到的信息,我们估计材料的回收率低于基于报告的官方统计数据。在送往回收处理的废旧电子电器设备中,68%被回收为可再利用材料。如果将处理系统之外的废弃电子电气设备计算在内,则只有 58% 被回收用于循环利用。我们还估算了废弃电器和电子设备不同报废处理方式的二氧化碳当量排放量,以及每类废弃电器和电子设备的二氧化碳当量内含排放量,从而说明:1)哪类废弃电器和电子设备的内含材料对环境造成的负担最大;2)系统内特定处理方案对环境的影响。我们展示了贵金属的回收率如何对系统的环境影响回收潜力产生重大影响。重要的不仅仅是回收材料的数量,还包括消耗排放的替代物,这有效地说明了需要更精确的政策实施,以确保循环经济的功能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Detritus
Detritus ENGINEERING, ENVIRONMENTAL-
CiteScore
3.30
自引率
23.50%
发文量
45
审稿时长
15 weeks
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