光伏晶硅切割废料中硅资源回收及高值化利用进展

Progress in silicon resource recovery and high-value utilization from photovoltaic silicon cutting waste

  • 摘要: 随着光伏产业的迅猛发展,晶硅切割废料的数量不断增加。对晶硅切割废料中的硅资源进行回收及高值化利用,不仅可以有效降低环境污染风险、保障人体健康,而且可以促进高纯硅资源的循环利用,具有重要的环保与经济价值。本文首先介绍了光伏产业的发展背景以及晶硅切割废料的来源、分类以及废料中硅资源的存在形式。随后,以物理法和化学法为框架梳理了晶硅切割废料中硅资源回收的技术路线,评价了不同回收方法的优点和局限性,评估了晶硅切割废料在不同领域中展现出的应用价值。最后,分析了晶硅切割废料中硅资源回收产业面临的瓶颈问题,并提出了相应的解决建议。本综述所梳理的内容有助于促进光伏产业的高质量可持续发展。

     

    Abstract: With the rapid development of the photovoltaic industry, the amount of silicon-cutting waste is constantly increasing. Recycling and high-value utilization of silicon resources from silicon-cutting waste can not only effectively reduce environmental pollution risks and protect human health but also promote the recycling of high-purity silicon resources, which have significant environmental and economic value. This article first introduces the development background of the photovoltaic industry, as well as the sources, classifications, and forms of silicon resources in silicon-cutting waste. Subsequently, the technical route for silicon resource recovery from silicon-cutting waste was outlined using physical and chemical methods, and the advantages and limitations of different recovery methods were evaluated. The application value of silicon cutting waste in different fields was also assessed. Finally, the bottleneck problems faced by the silicon resource recycling industry in silicon cutting waste were analyzed, and corresponding solutions were proposed. The content summarized in this review will help promote the high-quality and sustainable development of the photovoltaic industry.

     

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