Friday 6 February 2015

How Austin E-Waste Can Become An Asset

By Ines Flores


Electronic waste is more than improperly discarded batteries. The term encompasses nearly all appliances and digital devices that have the potential to become part of a landfill, and includes kitchen accessories as well as outdated computers. Once a limited issue, the problem is no longer restricted to wealthier consumer countries. Recycling and disposing of Austin e-waste efficiently and economically is a shared goal of most large Texas cities.

The primary driving force behind this explosion in consumer electronics is improved economics that expands buying ability while keeping prices down. Most types of these devices are constantly being improved, and there is no effort made to repair the old ones that fail. There have been many sensational news stories regarding the highly toxic substances they contain, but that issue is only one part of the picture.

Within discarded appliances are a host of precious metals. The old cathode ray computer displays are now phased out, but any device containing a printed circuit also holds a small but significant amount of platinum, palladium, gold, and silver. Substances with generally unfamiliar names such as gallium and indium play an important role in flat-screen technology and other innovations, and all have considerable after-market value.

Although melting down unused cell phones to extract valuable metals does not make sense individually, in large quantities the process produces more refined metal than the original ore that bore it. Costly and comparatively rare elements are only a fraction of the metals used during manufacturing a mobile phone, which also contains copper and tin. The plastics used to create housings can also be partially reused.

The key to successful recycling is profitability. It can be performed on smaller scales by individuals, but the most efficient operations employ numbers of people. Most centers begin by separating individual components manually, removing both processors and microchips from the original housing. The remaining fragments are then run through a specialized chipper that shreds them and makes more intense separation possible.

After being re-mined in this fashion, the purified materials are resold to manufacturers. Business owners benefit because this saves them from buying new metals on the world market, and consumers also benefit from lowered production costs. While it is vitally important to recycle this form of waste properly to prevent environmental degradation, that is only one benefit of recycling.

As the amount of this discarded material increases, efforts to promote recycling have been scaled up, but the amount of waste alone still poses health hazards. The effects have been widely documented, and include both mercury and lead poisoning. Children exposed over time to these toxins often have developmental issues, and adults may suffer brain issues or respiratory problems.

The total amount of used electronic parts worldwide is very difficult to calculate or track using current methods. The problem was created in part by economic realities, and can be solved by using the same motivations. While it is important to remind populations about the physical health hazards of non-recycling, the best long-term solution is the continued development of industries that thrive on processing e-waste.




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