Prospective life cycle assessment of recycling systems for spent photovoltaic panels by combined application of physical separation technologies
Prospective life cycle assessment of recycling systems for spent photovoltaic panels by combined application of physical separation technologies
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DOI：
10.1016/j.resconrec.2023.106922
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发表时间：
2023-05
期刊：
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通讯作者：
Aya Heiho;Izuru Suwa;Yi Dou;Soowon Lim;T. Namihira;T. Koita;K. Mochidzuki;Shinsuke Murakami;I. Daigo;C. Tokoro;Yasunori Kikuchi
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文献类型：
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作者：
Aya Heiho;Izuru Suwa;Yi Dou;Soowon Lim;T. Namihira;T. Koita;K. Mochidzuki;Shinsuke Murakami;I. Daigo;C. Tokoro;Yasunori Kikuchi
设计一个最佳的光伏板回收系统是一个紧迫的问题。本研究使用实验和试点数据进行了前瞻性的生命周期评估，以揭示所提出的技术的有效性。拟议的技术包括铝框架分离;由初级和二级研磨组成的精密机械分离;用于玻璃/乙烯-醋酸乙烯酯分离的热刀法;以及针对电池片中的铜和银的高压脉冲放电。实施资源回收技术减少了垃圾填埋场的废物，因为热刀程序有利于玻璃的再利用或回收。最大浓度的铜母线是由高压脉冲放电产生的，它可以很容易地纳入冶炼过程。低浓度金属废料与其他废物和矿石的混合改变了熔炼操作中可接受的浓度标准。在本次调查中应用详细的清单数据的金属浓度可以提高的结果。
The design of an optimal system for recycling photovoltaic panels is a pressing issue. This study performed a prospective life cycle assessment using experimental and pilot data to reveal the effectiveness of the proposed technologies. The proposed technologies include aluminum frame separation; precise mechanical separation consisting of primary and secondary grinding; the hot-knife method for glass/ethylene-vinyl acetate separation; and high-voltage pulsed discharge that targets copper and silver in cell sheets. Implementing resource recovery technology decreases landfill waste because the hot-knife procedure facilitates the reuse or recycle of glass. The largest concentration of copper busbar is produced by high-voltage pulsed discharge, which can be easily incorporated into smelting processes. The blending of low-concentration metal waste with other trash and ore changes the concentration criteria accepted in the smelting operations. Applying the detailed inventory data for the metal concentrations in this investigation could enhance the outcomes.