{"id":10741,"date":"2022-06-09T08:30:26","date_gmt":"2022-06-09T06:30:26","guid":{"rendered":"https:\/\/ggba.swiss\/eldorado-2-0-lepfl-valais-wallis-recupere-lor-qui-se-trouve-dans-vos-poches\/"},"modified":"2023-07-04T13:43:58","modified_gmt":"2023-07-04T11:43:58","slug":"eldorado-2-0-lepfl-valais-wallis-recupere-lor-qui-se-trouve-dans-vos-poches","status":"publish","type":"post","link":"https:\/\/ggba.swiss\/fr\/eldorado-2-0-lepfl-valais-wallis-recupere-lor-qui-se-trouve-dans-vos-poches\/","title":{"rendered":"El Dorado 2.0 : l’EPFL Valais\/Wallis r\u00e9cup\u00e8re l’or qui se trouve dans vos poches"},"content":{"rendered":"\n

Presque tout le monde a un peu d’or sur soi. Mais pas n\u00e9cessairement sous forme de bijoux : l’or se cache aussi dans nos t\u00e9l\u00e9phones portables.<\/p>\n

Selon Wendy Queen, chimiste et responsable du Laboratoire des mat\u00e9riaux inorganiques fonctionnels<\/a> de l’EPFL Valais\/Wallis<\/a>, nous devrions tous \u00eatre conscients de ce \u00ab\u00a0tr\u00e9sor\u00a0\u00bb et de l’importance du recyclage des appareils \u00e9lectroniques. Le recyclage permet de r\u00e9cup\u00e9rer les m\u00e9taux pr\u00e9cieux contenus dans les appareils.<\/p>\n

Dans cette optique, Queen et son coll\u00e8gue Mirko Bischofberger ont soumis leur projet intitul\u00e9 \u00ab\u00a0El Dorado 2.0 – unlock the gold in your pocket\u00a0\u00bb au programme de financement Agora<\/a>. Cette ann\u00e9e, le projet a remport\u00e9 le grand prix Agora Optimus.<\/p>\n

Sensibilisation du public \u00e0 la question du recyclage des m\u00e9taux pr\u00e9cieux<\/h4>\n

Il faut pr\u00e8s d’une tonne de minerai pour obtenir suffisamment d’or pour fabriquer 40 t\u00e9l\u00e9phones portables. Si les appareils \u00e9lectroniques ne sont pas recycl\u00e9s en fin de vie – ce qui est le cas pour 80% d’entre eux – l’or qu’ils contiennent est perdu. L’or par appareil est tr\u00e8s faible, mais cumul\u00e9, il repr\u00e9sente plus de EUR 10 milliards d’euros.<\/p>\n

En travaillant sur la r\u00e9cup\u00e9ration du mercure, Wendy Queen a eu l’id\u00e9e d’optimiser les \u00e9ponges du laboratoire pour les tester sur l’or, dont les propri\u00e9t\u00e9s sont similaires \u00e0 celles du mercure, ce qui a fonctionn\u00e9. Bien que la technique soit encore en cours d’affinage, un gramme d’\u00e9ponge permet de r\u00e9cup\u00e9rer un gramme d’or.<\/p>\n

L’\u00e9quipe de l’EPFL Valais\/Wallis veut trouver un moyen ludique de d\u00e9montrer en temps r\u00e9el comment l’or peut \u00eatre r\u00e9cup\u00e9r\u00e9 dans un t\u00e9l\u00e9phone portable.<\/p>\n

Ces d\u00e9monstrations auront lieu dans des lieux ouverts au public, comme l’EPFL ou des mus\u00e9es scientifiques. L’\u00e9quipe envisage \u00e9galement de pr\u00e9senter le projet Eldorado 2.0 au Glattzentrum de Zurich, l’un des centres commerciaux les plus populaires de Suisse. Ainsi, de nombreuses personnes, notamment des familles avec enfants, c’est-\u00e0-dire les futurs consommateurs de produits \u00e9lectroniques, seront sensibilis\u00e9es \u00e0 l’importance du recyclage des m\u00e9taux pr\u00e9cieux.<\/p>\n","protected":false},"excerpt":{"rendered":"

Le projet \u00ab El Dorado 2.0 – unlock the gold in your pocket \u00bb de l’EPFL Valais\/Wallis a remport\u00e9 le prix Agora Optimus 2022, soulignant l’importance du recyclage des d\u00e9chets \u00e9lectroniques pour r\u00e9cup\u00e9rer leur or.<\/p>\n","protected":false},"author":3,"featured_media":10742,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"mc4wp_mailchimp_campaign":[],"footnotes":""},"categories":[845],"tags":[1038,1114,1081],"class_list":["post-10741","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tech","tag-education-fr","tag-electronics-semi-conductors-2","tag-sustainability-fr"],"acf":[],"yoast_head":"\nEl Dorado 2.0 : l'EPFL Valais\/Wallis r\u00e9cup\u00e8re l'or qui se trouve dans vos poches - Greater Geneva Bern area<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ggba.swiss\/fr\/eldorado-2-0-lepfl-valais-wallis-recupere-lor-qui-se-trouve-dans-vos-poches\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"El Dorado 2.0 : l'EPFL Valais\/Wallis r\u00e9cup\u00e8re l'or qui se trouve dans vos poches - 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