{"id":1157,"date":"2009-02-18T18:39:21","date_gmt":"2009-02-18T18:39:21","guid":{"rendered":"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/2009\/02\/18\/un-procd-de-dsa\/"},"modified":"2012-07-12T11:23:12","modified_gmt":"2012-07-12T11:23:12","slug":"un-procd-de-dsa","status":"publish","type":"post","link":"https:\/\/blogs.thesocialmedia.com\/leblogenergie\/2009\/02\/18\/un-procd-de-dsa\/","title":{"rendered":"Un proc\u00e9d\u00e9 de d\u00e9salinisation de l&rsquo;eau \u00e9conome en \u00e9nergie"},"content":{"rendered":"<p>&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; <strong><span style=\"font-size: 1.4em\">A<\/span><\/strong>u premier Janvier 2005, la capacit\u00e9 de d\u00e9salinisation d&rsquo;eau dans le monde \u00e9tait estim\u00e9e \u00e0 35 millions de m3 d&rsquo;eau par jour et le usines en construction ou en projet repr\u00e9sentaient un potentiel de 21 millions de m3 suppl\u00e9mentaires. Il est donc possible d&rsquo;estimer en ce d\u00e9but 2009 la capacit\u00e9 mondiale de production entre<u> 50 et 60 millions de m3 d&rsquo;eau par jour<\/u>. La d\u00e9salinisation de l&rsquo;eau par distillation flash ou par osmose inverse sur membranes n\u00e9cessite de lourds investissements et entra\u00eene une tr\u00e8s forte consommation d&rsquo;\u00e9nergie de 25kWh \u00e0 6 kWh par m3 selon les proc\u00e9d\u00e9s. Il est donc possible d&rsquo;estimer grossi\u00e8rement la consommation d&rsquo;\u00e9nergie pour cette production mondiale entre 600 GWh \u00e0 800 GWh d&rsquo;\u00e9nergie par jour, soit la moiti\u00e9&nbsp; ou les 2\/3 environ de l&rsquo;\u00e9nergie \u00e9lectrique consomm\u00e9e quotidiennement en France. Les besoins croissants en eau pour la consommation et les besoins industriels et agricoles des pays o\u00f9 s\u00e9vit la s\u00e8cheresse fait que ce poste de consommation d&rsquo;\u00e9nergie deviendra rapidement un \u00e9l\u00e9ment non nul de la consommation mondiale en \u00e9nergie. Il est donc urgent de d\u00e9finir des proc\u00e9d\u00e9s \u00e9conomes en \u00e9nergie et de proscrire ceux qui consomment trop d&rsquo;\u00e9nergie, comme les divers proc\u00e9d\u00e9s par distillation flash. <a href=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/yaledesalinationprocess1.jpg\"><img loading=\"lazy\" decoding=\"async\" height=\"390\" alt=\"Yaledesalinationprocess\" src=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/yaledesalinationprocess.jpg\" width=\"480\"  \/><\/a> <\/p>\n<p>&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; Parmi les nouveaux proc\u00e9d\u00e9s prometteurs, il en existe un, invent\u00e9 \u00e0 l&rsquo;Universit\u00e9 de Yale aux Etats-Unis qui repose sur un principe tr\u00e8s simple. Une solution concentr\u00e9e de carbonate d&rsquo;ammonium obtenue par dissolution d&rsquo;ammoniac gazeux et de CO2 dans l&rsquo;eau permet par pression osmotique d&rsquo;attirer l&rsquo;eau d&rsquo;une solution sal\u00e9e d&rsquo;eau de mer au travers d&rsquo;une membrane (FIG. petites fl\u00e8ches blanches). Une boucle en continu de vaporisation sous vide de l&rsquo;ammoniac et du CO2 permet de r\u00e9cup\u00e9rer de l&rsquo;eau pure et de recycler les gaz dans la solution concentr\u00e9e. L&rsquo;int\u00e9r\u00eat du proc\u00e9d\u00e9 r\u00e9side dans la faible \u00e9nergie consomm\u00e9e pour assurer l&rsquo;\u00e9vaporation des gaz, elle est trois fois plus faible que celle n\u00e9cessaire \u00e0 l&rsquo;osmose inverse. Un spin off, appel\u00e9 <strong><span style=\"color: #000099\">Oasys<\/span><\/strong>, vient de trouver les capitaux n\u00e9cessaires pour essayer de valider industriellement ce nouveau proc\u00e9d\u00e9. Deux kWh d&rsquo;\u00e9nergie consomm\u00e9e par m3 d&rsquo;eau serait un bon objectif.<\/p>\n<p>Le 18 F\u00e9vrier 2009.<\/p>\n<p>&#8211;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; Au premier Janvier 2005, la capacit\u00e9 de d\u00e9salinisation d&rsquo;eau dans le monde \u00e9tait estim\u00e9e \u00e0 35 millions de m3 d&rsquo;eau par jour et le usines en construction ou en projet repr\u00e9sentaient un potentiel de 21 millions de m3 suppl\u00e9mentaires. Il est donc possible d&rsquo;estimer en ce d\u00e9but 2009 [&hellip;]<\/p>\n","protected":false},"author":341,"featured_media":11884,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1157","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Un proc\u00e9d\u00e9 de d\u00e9salinisation de l&#039;eau \u00e9conome en \u00e9nergie - leblogenergie.com<\/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:\/\/blogs.thesocialmedia.com\/leblogenergie\/2009\/02\/18\/un-procd-de-dsa\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Un proc\u00e9d\u00e9 de d\u00e9salinisation de l&#039;eau \u00e9conome en \u00e9nergie - leblogenergie.com\" \/>\n<meta name=\"twitter:description\" content=\"&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; Au premier Janvier 2005, la capacit\u00e9 de d\u00e9salinisation d&rsquo;eau dans le monde \u00e9tait estim\u00e9e \u00e0 35 millions de m3 d&rsquo;eau par jour et le usines en construction ou en projet repr\u00e9sentaient un potentiel de 21 millions de m3 suppl\u00e9mentaires. 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