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    Apr 23 2015  Guiyu in Guangdong Province China is one of the widely known examples of a center of improper recycling of printed circuit boards. Health effects of crude e waste disposal methods have been reported. These include elevated levels of exposure of toxins in air soil water and human tissue.

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    Jul 31 2017  He Recovery of metals from waste printed circuit boards by a mechanical method using a water medium J. Hazard. Mater. 2009 166 478 482 CrossRef CAS PubMed. W. Jiang L. Jia and X. Zhen Ming A new two roll electrostatic separator for recycling of metals nonmetals from waste printed circuit board J

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    Mar 21 2017  Circuit boards go to Japan where precious metals like gold silver and copper are recovered through a heat and chemical process. Computer circuit boards and any data on them are destroyed

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    The Life Cycle of Materials in Mobile Phones

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    Sep 19 2018  The treasure hidden in our gadgets. Please read our republishing guidelines to get started. Gold is the most valuable metal in a phone. One tonne of gold ore contains around 1 5 grams of pure gold but a tonne of mobile phones contains upwards of 300 grams explains Professor Jason Love. In fact an estimated 7 of gold in circulation around

  • Valuable Metals used in Computers

    Even today most Computers electronic devices have circuit boards and other components inside that still contain many types of precious metals including Gold Palladium Platinum and Silver. In modern electronics Silver is the most comonly used of all the precious metals followed by gold then Paladium Platinum Rodium and Ididium.

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