14
1.6.7 Smelting Flux
Smelting process is suitable to avoid removal of glass coatings prior to recycling of
funnel glass. It promotes fluidity through the use of a large amount of silica from
lead and copper smelter, thus extract and convey impurities to the processed slag
(Yu et al. 2016). The assorted cathode-ray tube glass is a suitable replacement for
fluxing materials such as silica flux (Mostaghel et al. 2011).
1.7 Conclusion
Recycling of cathode-ray tube glass has been a major challenge both at developed
and developing countries as cathode-ray tubes continue to enter the waste stream,
while recyclers are finding it hard to manage cathode-ray tube waste. Heavy metals
and other toxins within cathode-ray tubes such as lead, strontium, and phosphor are
extremely hazardous possessing a serious health threat to the human being and the
surrounding environment. The most likely method of these toxins entering into the
human system is by leaching from landfills into the soil and groundwater. Research
into new and more effective methods of recycling is needed to handle the volume of
E-waste that is created on a daily basis. Older technology requires special attention
because as the volume of the devices going into the recycling industry falls, the
financial viability of the recycling effort drops faster than the number of devices left.
We need processes that work on specific problems like the separation of glass and
lead into two sellable components that make a positive impact on toxic global problems. The emerging technology using a furnace and chemicals for extraction of
toxic lead from the cathode-ray tube in an environmentally sustainable way without
any residual waste as introduced by the Nulife Glass Company and the Sweeep
Kuusakoski Company in the United Kingdom looks promising. However, a combination of regulatory enforcement, better funding mechanisms, and creative problem-solving could be the key to moving cathode-ray tube recycling forward in a
healthy way. Besides, finding good solutions for cathode-ray tube glass recycling
will help set a precedent for the next end-of-life electronics that have their own challenges, such as used electronics that contain mercury or other hazardous
substances.
References
Andreola F, Barbieri L, Corradi A, Lancellotti I (2005) Cathode ray tube glass recycling: an
example of clean technology. Waste Manag Res 23:314–321. https://doi.org/10.1177/07342
42X05054422
Baldé CP, Wang F, Kuehr R, Huisman J (2015) The global e-waste monitor-2014. United Nations
University, IAS–SCYCLE, Bonn, Germany. Available at https://i.unu.edu/media/unu.edu/
news/52624/UNU-1stGlobal-E-Waste-Monitor-2014-small.pdf
S. Shams
1.6.7 Smelting Flux
Smelting process is suitable to avoid removal of glass coatings prior to recycling of
funnel glass. It promotes fluidity through the use of a large amount of silica from
lead and copper smelter, thus extract and convey impurities to the processed slag
(Yu et al. 2016). The assorted cathode-ray tube glass is a suitable replacement for
fluxing materials such as silica flux (Mostaghel et al. 2011).
1.7 Conclusion
Recycling of cathode-ray tube glass has been a major challenge both at developed
and developing countries as cathode-ray tubes continue to enter the waste stream,
while recyclers are finding it hard to manage cathode-ray tube waste. Heavy metals
and other toxins within cathode-ray tubes such as lead, strontium, and phosphor are
extremely hazardous possessing a serious health threat to the human being and the
surrounding environment. The most likely method of these toxins entering into the
human system is by leaching from landfills into the soil and groundwater. Research
into new and more effective methods of recycling is needed to handle the volume of
E-waste that is created on a daily basis. Older technology requires special attention
because as the volume of the devices going into the recycling industry falls, the
financial viability of the recycling effort drops faster than the number of devices left.
We need processes that work on specific problems like the separation of glass and
lead into two sellable components that make a positive impact on toxic global problems. The emerging technology using a furnace and chemicals for extraction of
toxic lead from the cathode-ray tube in an environmentally sustainable way without
any residual waste as introduced by the Nulife Glass Company and the Sweeep
Kuusakoski Company in the United Kingdom looks promising. However, a combination of regulatory enforcement, better funding mechanisms, and creative problem-solving could be the key to moving cathode-ray tube recycling forward in a
healthy way. Besides, finding good solutions for cathode-ray tube glass recycling
will help set a precedent for the next end-of-life electronics that have their own challenges, such as used electronics that contain mercury or other hazardous
substances.
References
Andreola F, Barbieri L, Corradi A, Lancellotti I (2005) Cathode ray tube glass recycling: an
example of clean technology. Waste Manag Res 23:314–321. https://doi.org/10.1177/07342
42X05054422
Baldé CP, Wang F, Kuehr R, Huisman J (2015) The global e-waste monitor-2014. United Nations
University, IAS–SCYCLE, Bonn, Germany. Available at https://i.unu.edu/media/unu.edu/
news/52624/UNU-1stGlobal-E-Waste-Monitor-2014-small.pdf
S. Shams