” Ask Samsung to stop the destruction of 4.3 million phones Galaxy Note 7 “ : this is the label for the petition launched by Greenpeace. The request is justified, since this mass smartphones would be ” 730 tonnes of high-technology “ according to theassociation. In this mountain, gathering rare materials and metals pollutants. The problem is thus twofold : that of the recovery and release into the environment.
That will make the south Korean company, which has ceased manufacturing this model after a series of explosions, and recalled more than a million devices ? Solicited, she replied… the question is in the study. ” We recognize the problem caused by the stoppage of the Galaxy Note 7 and we’re currently reviewing the possible options that can minimize the environmental impact and in full compliance of the local regulations “ she explained in a press release reported by the agency Reuters, November 3. In 1995, the company had destroyed 150.000 phones and fax by fire, and in front of 2,000 employees, to show the requirement of brand quality…
The components of a smartphone are difficult to recycle, and the industrial accident of Samsung has the merit of posing the issue for all manufacturers. A current phone contains a collection of contents first, which can be rare and pollutants, such as metals : cadmium, cobalt, indium, nickel, lead, zinc… the cameraman also rare earths, that is to say 17 chemical elements that exhibit a range of interesting properties, in particular in the field of electromagnetic.
They are not especially rare at the scale of the planet, they are rather equally distributed on the planet. However, the extraction of these rare earths, in rocks where they are less concentrated, is extremely polluting to the image of the neodymium or other, which is recovered by spreading thesulfuric acid. In the rich countries, this work requires extreme care to respect the health of workers and does not pollute the environment. In China, these criteria are very little taken into account, which enables very low prices and this country is today, by far the first exporter in the world.
recycle the millions of smartphones, obsolescence more or less programmed (such as theiPhone 4 which Apple has pronounced the death sentence last October 31), would therefore be of certain interest. Samsung is not inactive in this field (see his report 2015 on the management of environmental issues), and says, for example, that thealuminum comes to 100% of the recycling since the Galaxy S6. But there is still much to be done and it will be necessary in future to achieve our many devices, electronic or not, taking into account at the design stage, the recycling operations. This is the principle of the circular economy, defended for example by the ex-sailor british Ellen MacArthur. The idea is well-known, and well-theorized, but is still embryonic.
Chemistry : top 5 reactions to the spectacular chemistry is a fantasy world. All it takes sometimes is mix a few products to generate precipitates, color changes, and sometimes even explosions… Put on your coat for a ride video in the universe of chemical reactions.
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