Center for Energy and Environmental Policy, University of Delaware, 278 Graham Hall, Newark, 19716, United States.
Department of Civil and Environmental Engineering, University of Delaware, Newark, 19711, United States.
Waste Manag. 2014 Nov;34(11):2321-6. doi: 10.1016/j.wasman.2014.07.011. Epub 2014 Aug 15.
The cessation of production and replacement of cathode ray tube (CRT) displays with flat screen displays have resulted in the proliferation of CRTs in the electronic waste (e-waste) recycle stream. However, due to the nature of the technology and presence of hazardous components such as lead, CRTs are the most challenging of electronic components to recycle. In the State of Delaware it is due to this challenge and the resulting expense combined with the large quantities of CRTs in the recycle stream that electronic recyclers now charge to accept Delaware's e-waste. Therefore it is imperative that the Delaware Solid Waste Authority (DSWA) understand future quantities of CRTs entering the waste stream. This study presents the results of an assessment of CRT obsolescence in the State of Delaware. A prediction model was created utilizing publicized sales data, a variety of lifespan data as well as historic Delaware CRT collection rates. Both a deterministic and a probabilistic approach using Monte Carlo Simulation (MCS) were performed to forecast rates of CRT obsolescence to be anticipated in the State of Delaware. Results indicate that the peak of CRT obsolescence in Delaware has already passed, although CRTs are anticipated to enter the waste stream likely until 2033.
随着平板显示器取代阴极射线管（CRT）显示器，CRT 在电子废物（电子垃圾）回收流中的数量不断增加。然而，由于该技术的性质以及存在铅等危险组件，CRT 是最难回收的电子组件。在特拉华州，由于这种挑战以及随之而来的高昂费用，再加上回收流中大量的 CRT，电子回收商现在开始对接受特拉华州的电子垃圾收费。因此，特拉华州固体废物管理局（DSWA）必须了解未来进入废物流的 CRT 数量。本研究介绍了对特拉华州 CRT 过时情况的评估结果。利用公布的销售数据、各种使用寿命数据以及历史上特拉华州 CRT 收集率创建了一个预测模型。使用蒙特卡罗模拟（MCS）进行了确定性和概率两种方法，以预测预计在特拉华州 CRT 过时的速度。结果表明，特拉华州 CRT 过时的高峰期已经过去，尽管 CRT 可能会一直进入废物流，直到 2033 年。
