电子废物开采和向生物经济过渡:灯粉的案例
1Centre for Mineral Technology, Av. Pedro Calmon 900, Rio de Janeiro, RJ Brasil.
MRS energy & sustainability : a review journal
|July 31, 2023
概括
生物水电金技术为电子废物 (E-waste) 的回收提供了一个可持续的替代方案,可以回收关键金属. 这种方法支持通过利用生物工艺提取金属来转向生物循环经济.
科学领域:
- 金与材料科学 金与材料科学
- 环境科学与工程环境科学与工程
- 生物技术是生物技术.
背景情况:
- 电子废物 (E-waste) 是一个日益严重的全球问题,含有有价值的关键金属,稀土元素 (REE) 和有毒化合物.
- 自然资源的枯竭需要成本效益高的技术来回收电子废物和回收关键元素.
- 转向生物循环经济是一个关键的全球目标.
研究的目的:
- 探索生物水电金技术在电子废物回收利用中的潜力.
- 评估用生物基替代品取代传统的水电金和火电金工艺的可行性.
- 突出电子废物作为关键金属的二次来源的重要性,特别是废光灯粉中的 REE.
主要方法:
- 关于电子废物回收和生物水电金学的现有文献的综述.
- 全球电子废物产生和REE发生情况的分析.
- 案例研究侧重于从粉中REE生物吸收作为城市生物开采的一个例子.
主要成果:
- 生物水电金工艺,包括生物洗和生物吸收,有可能取代传统的电子废物回收步骤.
- 电子废物,特别是使用过的灯具中的粉,是可再生能源回收的可行的二次来源.
- 城市生物开采,以 REE 生物吸收为例,显示了可持续金属回收的希望.
结论:
- 金行业可以转向用于电子废物回收的生物水电金技术.
- 从电子废物中生物回收关键金属有助于生物循环经济和可持续发展.
- 对生物基过程的进一步研究对于推进城市采矿和实现联合国可持续发展目标至关重要.
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