数据受限环境中废弃电子电气设备的潜在物质流--约旦案例

IF 4.6 Q2 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY Recycling Pub Date : 2024-01-09 DOI:10.3390/recycling9010004
L. Al-Khatib, F. Fraige
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引用次数: 0

摘要

对电器和电子设备废弃物(WEEE)的日益关注源于对电器需求的快速增长和设备寿命的缩短。建立一个可持续的 WEEE 管理系统来利用这种二次资源,对于最大限度地提高资源效率、减轻其对环境的影响以及促进循环经济至关重要。本文旨在首次量化回收所产生的废旧电子电器设备的预期物料流,提出回收这种二次资源所需的工厂数量,并概述回收操作可实现的预期经济和环境效益。物料流计算结果表明,废旧电子电器设备的成分中主要是钢、铜和铝。此外,预计 2022 年废弃电子电气设备中的金属含量分别约为 26 千吨、3.3 千吨和 2.5 千吨。预计到 2050 年,这三种金属的含量将分别大幅增至约 109 千吨、11.9 千吨和 9 千吨。其他有价金属的数量在 2022 年至 2050 年间将翻一番,达到约 1133 千克银和 475 千克金。到 2030 年,回收这些材料大约需要四个处理厂,相对安装成本为 1 亿美元。根据生命周期评估 (LCA) 计算了回收废弃电子电气设备所含材料的预测经济收入和环境影响指标。这项研究的结果可作为初步参考,为今后指导该国有效规划废弃电子电器设备的回收和可持续管理提供依据。
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The Potential Material Flow of WEEE in a Data-Constrained Environment—The Case of Jordan
The rising concerns about electric and electronic equipment waste (WEEE) come from the rapid increase in demand for appliances and the decreasing lifetimes of equipment. Setting a sustainable WEEE management system that exploits this secondary resource is paramount to maximize resource efficiency, mitigate its environmental impact, and stimulate the circular economy. This paper aims, for the first time, to quantify the material flow expected from recycling the generated WEEE, propose the number of plants required to recycle this secondary resource, and outline the expected economic and environmental benefits that could be achieved from recycling operations. The findings of material flow calculations show that the amount of steel, copper, and aluminum is predominant in the WEEE composition. Also, the expected metal content in WEEE in 2022 is approximately 26 kt, 3.3 kt, and 2.5 kt, respectively. These are expected to substantially increase to approximately 109 kt, 11.9 kt, and 9 kt for the three metals in 2050, respectively. Other valuable metals are doubling their quantities between 2022 and 2050 to reach approximately 1133 kg silver and 475 kg gold. Approximately, four treatment plants are required to recover these materials in 2030 with relative installation costs of USD 100 million. The forecasted financial revenues of recovering materials included in WEEE and indicators for environmental impact based on life cycle assessment (LCA) are calculated. The results of this study can serve as a preliminary reference for future usage in guiding effective planning for WEEE recycling and sustainable management in the country.
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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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