![]() ![]() © The Author(s) 2015.Ģ1 CFR 870.2450 - Medical cathode-ray tube display. 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. 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. 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. This review covers existing and emerging management practices for end-of-life cathode ray tubes. Mitigating such environmental contamination will require sound management strategies that are environmentally friendly and economically feasible. 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. 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. 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. Management practices for end-of-life cathode ray tube glass: Review of advances in recycling and best available technologies.Ĭathode ray tubes are image display units found in computer monitors and televisions. Schematic displays with the equivalent tabular displays are compared. The displaying of Spacelab information on the space shuttle orbiter multifunction cathode ray tube display system is used to illustrate this procedure. Schematic displays for the Space Shuttle Orbiter multifunction cathode-ray-tube display systemĪ standardized procedure for developing cathode ray tube displayed schematic diagrams. After vaporization and baking, the polymerized material is stable under vacuum and under temperatures required for tube fabrication. The resins contain sufficient methyl or phenyl groups for solubility in organic solvents. Multilayer screen gives cathode ray tube high contrastįabrication method for cathode ray tubes uses low-cost siloxane resin formulations. ![]()
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