Department of Environmental Science & Engineering, Tsinghua University, Beijing 100084, China.
J Environ Manage. 2011 Mar;92(3):392-9. doi: 10.1016/j.jenvman.2010.10.057. Epub 2010 Nov 16.
The dismantling of printed circuit board assemblies (PCBAs) and the recovery of their useful materials can lead to serious environmental impacts mainly due to their complicated physical structure and the variety of toxic elements contained in their material composition. So far, less attention has been paid to their responsible recycling compared to that of bare printed circuit boards. Combined with other materials recovery process, proper dismantling of PCBAs is beneficial to conserve scarce resources, reuse the components, and eliminate or safely dispose of hazardous materials. In analyzing the generation, resources potential and hazardous risk of scrap PCBAs, technologies used for the dismantling of waste PCBAs have been widely investigated and reviewed from the aspects of both industrial application and laboratory-scale studies. In addition, the feasibility of PCBA dismantling has been discussed, the determinants of which, including the heating conditions and mechanical properties have been identified. Moreover, this paper evaluates the environmental consequences caused by the dismantling of PCBAs.
印刷电路板组件（PCBA）的拆卸和有用材料的回收可能会对环境造成严重影响，主要是因为它们复杂的物理结构和材料成分中包含的各种有毒元素。到目前为止，与裸印刷电路板相比，人们对其负责任的回收关注较少。与其他材料回收过程相结合，适当拆卸 PCBA 有利于节约稀缺资源、再利用组件、消除或安全处理危险材料。在分析报废 PCBA 的产生、资源潜力和危险风险时，从工业应用和实验室规模研究两个方面广泛研究和综述了用于拆卸废 PCBA 的技术。此外，还讨论了 PCBA 拆卸的可行性，确定了其决定因素，包括加热条件和机械性能。此外，本文还评估了拆卸 PCBA 所造成的环境后果。
