{"id":8389,"date":"2018-04-13T12:43:24","date_gmt":"2018-04-13T10:43:24","guid":{"rendered":"https:\/\/staging.ggba.swiss\/scientifiques-de-lepfl-purifient-leau-metaux-lourds\/"},"modified":"2023-07-04T13:43:07","modified_gmt":"2023-07-04T11:43:07","slug":"scientifiques-de-lepfl-purifient-leau-metaux-lourds","status":"publish","type":"post","link":"https:\/\/staging.ggba.swiss\/fr\/scientifiques-de-lepfl-purifient-leau-metaux-lourds\/","title":{"rendered":"Des scientifiques de l’EPFL purifient l\u2019eau des m\u00e9taux lourds"},"content":{"rendered":"

Le Laboratoire des mat\u00e9riaux inorganiques fonctionnels de l’EPFL a mis au point une nouvelle m\u00e9thode rapide et \u00e9conomique pour \u00e9liminer les m\u00e9taux lourds dans l\u2019eau. Cette solution pourrait changer la vie de pr\u00e8s d\u2019un milliard de personnes dans le monde qui n’ont pas acc\u00e8s \u00e0 de l’eau potable propre.<\/strong><\/h4>\n

La contamination de l’eau potable par des m\u00e9taux lourds, en particulier le plomb, est un probl\u00e8me croissant dans le monde entier, avec de graves cons\u00e9quences pour la sant\u00e9 publique. Les m\u00e9thodes de purification actuellement disponibles pour rendre l’eau municipale potable sont co\u00fbteuses, \u00e9nergivores ou inefficaces.<\/p>\n

Le laboratoire de la Professeure Wendy Queen<\/a> \u00e0 l’EPFL Valais Wallis<\/a> a d\u00e9velopp\u00e9 une solution pour d\u00e9polluer l\u2019eau et la rendre potable en quelques secondes. L\u2019innovation fait appel \u00e0 des charpentes m\u00e9tallo-organiques (MOF) \u2013 des mat\u00e9riaux constitu\u00e9s de n\u0153uds m\u00e9talliques interconnect\u00e9s par des \u00ab entretoises \u00bb, explique un communiqu\u00e9 de presse<\/a>. Gr\u00e2ce \u00e0 une surface interne in\u00e9gal\u00e9e et un ajustement chimique ais\u00e9, les MOF peuvent \u00ab soustraire \u00bb la vapeur d\u2019eau et d\u2019autres gaz de l\u2019air.<\/p>\n

En gardant ceci en t\u00eate, un doctorant du p\u00f4le EPFL Valais Wallis, Daniel T. Sun, a con\u00e7u un composite MOF\/polym\u00e8re stable dans l\u2019eau, en faisant recours \u00e0 des mat\u00e9riaux peu co\u00fbteux, respectueux de l\u2019environnement et biologiquement inoffensifs. Le composite peut rapidement et s\u00e9lectivement \u00e9liminer les quantit\u00e9s \u00e9lev\u00e9es de m\u00e9taux lourds dans des \u00e9chantillons d\u2019eau r\u00e9elle, comme le plomb et le mercure. Des essais concluants ont \u00e9t\u00e9 effectu\u00e9s avec divers \u00e9chantillons d\u2019eau r\u00e9elle provenant du Rh\u00f4ne, de la M\u00e9diterran\u00e9e et d\u2019usines de traitement des eaux us\u00e9es en Suisse et aux \u00c9tats-Unis.<\/p>\n

L’\u00e9tude, men\u00e9e en partenariat avec des scientifiques de l\u2019Universit\u00e9 de Californie \u00e0 Berkeley et du Lawrence Berkeley National Laboratory, a \u00e9t\u00e9 publi\u00e9e dans ACS Central Science<\/a>. \u00ab\u00a0Mon souhait le plus profond serait que ce mat\u00e9riel soit distribu\u00e9 dans les pays \u00e9mergents par des entreprises conscientes du probl\u00e8me et d\u00e9sireuses d\u2019am\u00e9liorer la situation,\u00a0\u00bb a d\u00e9clar\u00e9 Wendy Queen au journal Le Nouvelliste<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

Le Laboratoire des mat\u00e9riaux inorganiques fonctionnels de l’EPFL a mis au point une nouvelle m\u00e9thode rapide et \u00e9conomique pour \u00e9liminer les m\u00e9taux lourds dans l\u2019eau. Cette solution pourrait changer la vie de pr\u00e8s d\u2019un milliard de personnes dans le monde qui n’ont pas acc\u00e8s \u00e0 de l’eau potable propre. La contamination de l’eau potable par […]<\/p>\n","protected":false},"author":3,"featured_media":8390,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"mc4wp_mailchimp_campaign":[]},"categories":[842],"tags":[],"acf":[],"yoast_head":"\nDes scientifiques de l'EPFL purifient l\u2019eau des m\u00e9taux lourds - Greater Geneva Bern area<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Des scientifiques de l'EPFL purifient l\u2019eau des m\u00e9taux lourds - Greater Geneva Bern area\" \/>\n<meta property=\"og:description\" content=\"Le Laboratoire des mat\u00e9riaux inorganiques fonctionnels de l’EPFL a mis au point une nouvelle m\u00e9thode rapide et \u00e9conomique pour \u00e9liminer les m\u00e9taux lourds dans l\u2019eau. Cette solution pourrait changer la vie de pr\u00e8s d\u2019un milliard de personnes dans le monde qui n’ont pas acc\u00e8s \u00e0 de l’eau potable propre. 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