The Ohio State University, William G. Lowrie Department of Chemical and Biomolecular Engineering, OH, USA.
Waste Manag. 2012 Aug;32(8):1560-5. doi: 10.1016/j.wasman.2012.03.004. Epub 2012 Mar 31.
Cathode Ray Tube, CRT, waste glass recycling has plagued glass manufacturers, electronics recyclers and electronics waste policy makers for decades because the total supply of waste glass exceeds demand, and the formulations of CRT glass are ill suited for most reuse options. The solutions are to separate the undesirable components (e.g. lead oxide) in the waste and create demand for new products. Achieving this is no simple feat, however, as there are many obstacles: limited knowledge of waste glass composition; limited automation in the recycling process; transportation of recycled material; and a weak and underdeveloped market. Thus one of the main goals of this paper is to advise electronic glass recyclers on how to best manage a diverse supply of glass waste and successfully market to end users. Further, this paper offers future directions for academic and industry research. To develop the recommendations offered here, a combination of approaches were used: (1) a thorough study of historic trends in CRT glass chemistry; (2) bulk glass collection and analysis of cullet from a large-scale glass recycler; (3) conversations with industry members and a review of potential applications; and (4) evaluation of the economic viability of specific uses for recycled CRT glass. If academia and industry can solve these problems (for example by creating a database of composition organized by manufacturer and glass source) then the reuse of CRT glass can be increased.
阴极射线管（CRT）、废玻璃回收一直困扰着玻璃制造商、电子废物回收商和电子废物政策制定者数十年，因为废玻璃的总供应量超过了需求，而且 CRT 玻璃的配方不太适合大多数再利用选择。解决方案是分离废玻璃中的不良成分（例如氧化铅）并创造新产品的需求。然而，实现这一目标并非易事，因为存在许多障碍：对废玻璃成分的了解有限；回收过程中的自动化程度有限；回收材料的运输；以及薄弱和欠发达的市场。因此，本文的主要目标之一是就如何最好地管理各种废玻璃供应以及成功向最终用户销售向电子玻璃回收商提供建议。此外，本文还为学术和行业研究提供了未来的方向。为了制定这里提出的建议，采用了多种方法：（1）对 CRT 玻璃化学的历史趋势进行深入研究；（2）从大型玻璃回收商处收集大块玻璃并分析碎玻璃；（3）与行业成员进行对话并审查潜在应用；（4）评估回收 CRT 玻璃的特定用途的经济可行性。如果学术界和行业能够解决这些问题（例如，通过按制造商和玻璃来源组织成分数据库），那么 CRT 玻璃的再利用就可以增加。
