...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Waste management & research >Management practices for end-of-life cathode ray tube glass: Review of advances in recycling and best available technologies
【24h】

Management practices for end-of-life cathode ray tube glass: Review of advances in recycling and best available technologies

机译：寿命终止的阴极射线管玻璃的管理实践：对回收技术和现有最佳技术的回顾

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Cathode ray tubes are image display units found in computer monitors and televisions. In recent years, cathode ray tubes have been generated as waste owing to the introduction of newer and advanced technologies in image displays, such as liquid crystal displays and high definition televisions, among others. Generation and subsequent disposal of end-of-life cathode ray tubes presents a challenge owing to increasing volumes and high lead content embedded in the funnel and neck sections of the glass. Disposal in landfills and open dumping are anti-environmental practices considering the large-scale contamination of environmental media by the potential of toxic metals leaching from glass. Mitigating such environmental contamination will require sound management strategies that are environmentally friendly and economically feasible. This review covers existing and emerging management practices for end-of-life cathode ray tubes. An in-depth analysis of available technologies (glass smelting, detoxification of cathode ray tube glass, lead extraction from cathode ray tube glass) revealed that most of the techniques are environmentally friendly, but are largely confined to either laboratory scale, or are often limited owing to high cost to mount, or generate secondary pollutants, while a closed-looped method is antiquated. However, recycling in cementitious systems (cement mortar and concrete) gives an added advantage in terms of quantity of recyclable cathode ray tube glass at a given time, with minimal environmental and economic implications. With significant quantity of waste cathode ray tube glass being generated globally, cementitious systems could be economically and environmentally acceptable as a sound management practice for cathode ray tube glass, where other technologies may not be applicable.
机译：阴极射线管是计算机显示器和电视中的图像显示单元。近年来，由于在诸如液晶显示器和高清晰度电视的图像显示器中引入了更新的和先进的技术，阴极射线管已经作为废物产生。寿命终止的阴极射线管的产生和随后的处理由于增加的体积和嵌入玻璃漏斗和颈部的高铅含量而带来了挑战。考虑到从玻璃中浸出的有毒金属的潜能，对环境介质进行了大规模污染，因此将其运往垃圾填埋场和露天倾倒是一种反环境的做法。减轻这种环境污染将需要合理的管理策略，该策略必须对环境友好且在经济上可行。这篇评论涵盖了寿命终止的阴极射线管的现有和新兴管理实践。对可用技术（玻璃熔炼，阴极射线管玻璃的解毒，阴极射线管玻璃的铅提取）的深入分析表明，大多数技术是环境友好的，但在很大程度上仅限于实验室规模，或者经常受到限制由于安装或产生二次污染物的成本较高，而闭环方法已过时。但是，在给定时间内，在水泥系统（水泥砂浆和混凝土）中的回收利用在可回收阴极射线管玻璃的数量方面具有额外的优势，对环境和经济的影响最小。随着全球产生大量废阴极射线管玻璃，水泥系统可以作为阴极射线管玻璃的声音管理实践在经济和环境上得到接受，而其他技术可能不适用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号