{"id":12521,"date":"2025-07-21T15:54:34","date_gmt":"2025-07-21T13:54:34","guid":{"rendered":"https:\/\/blog.wika.com\/fr\/?p=12521"},"modified":"2025-09-12T15:54:57","modified_gmt":"2025-09-12T13:54:57","slug":"dessalement-de-leau-de-mer-une-technologie-de-pointe-au-service-de-leau-potable","status":"publish","type":"post","link":"https:\/\/blog.wika.com\/fr\/general\/dessalement-de-leau-de-mer-une-technologie-de-pointe-au-service-de-leau-potable\/","title":{"rendered":"Dessalement de l\u2019eau de mer : une technologie de pointe au service de l\u2019eau potable"},"content":{"rendered":"<p><strong>Le dessalement de l\u2019eau de mer joue un r\u00f4le essentiel dans l\u2019approvisionnement mondial en eau potable et en eau industrielle. Face \u00e0 la demande croissante, notamment dans les r\u00e9gions arides, les acteurs du secteur multiplient les constructions d\u2019installations.<\/strong><\/p>\n<p><span>Aujourd\u2019hui, plus de 22 000 usines de dessalement fonctionnent \u00e0 travers le monde. Les plus grandes, capables de produire un million de m\u00e8tres cubes d\u2019eau par jour ou plus, se concentrent principalement au Proche et au Moyen-Orient ainsi qu\u2019aux \u00c9tats-Unis. En Europe, l\u2019Espagne et les pays m\u00e9diterran\u00e9ens accueillent la majorit\u00e9 de ces installations.<\/span><\/p>\n<h3><strong>L\u2019osmose inverse, proc\u00e9d\u00e9 phare du dessalement<\/strong>.<\/h3>\n<p>Parmi les diff\u00e9rentes m\u00e9thodes disponibles, l\u2019osmose inverse s\u2019impose comme la plus utilis\u00e9e. Ce proc\u00e9d\u00e9 commence par l\u2019\u00e9limination des composants ind\u00e9sirables pr\u00e9sents dans l\u2019eau de mer, tels que les algues ou les d\u00e9chets. Ensuite, l\u2019eau passe \u00e0 travers des membranes semi-perm\u00e9ables sous une pression de 60 \u00e0 80 bar. Ces membranes retiennent le sel et permettent d\u2019obtenir une eau douce, que les op\u00e9rateurs traitent et stockent comme eau potable, en y ajoutant du fluor et du chlore conform\u00e9ment aux normes en vigueur.<\/p>\n<p>Pendant le processus, la salinit\u00e9 de l\u2019eau augmente en amont des membranes. Les syst\u00e8mes de recirculation g\u00e8rent cette saumure et la rejettent dans la mer de mani\u00e8re biologiquement s\u00fbre.<\/p>\n<h2>Un seul fournisseur &#8211; des instruments de mesure aux vannes d&rsquo;instrumentation<\/h2>\n\n      <div class=\"wp-caption alignright\" style=\"max-width:396px;\"><img decoding=\"async\" src=\"https:\/\/blog.wika.com\/fr\/wp-content\/blogs.dir\/26\/files\/2025\/07\/textbild_desalination_3_neu-e1747925819832.jpg\" alt=\"WIKA est un \"one-stop store\" pour les solutions d'instrumentation pour les usines de dessalement d'eau de mer.\" \/><p class=\"wp-caption-text\">Instrumentation fournit pour l&rsquo;usine de dessalement d&rsquo;eau de mer mentionn\u00e9e dans cet article (de gauche \u00e0 droite) : thermom\u00e8tre \u00e0 r\u00e9sistance mod\u00e8le TR10, s\u00e9parateur \u00e0 bride 990.12, manom\u00e8tre mod\u00e8le 263.30, pressostat diff\u00e9rentiel mod\u00e8le DW et indicateur de niveau magn\u00e9tique mod\u00e8le BNA.<\/p><\/div>\n    \n<p>Pour piloter efficacement chaque \u00e9tape du dessalement, les exploitants s\u2019appuient sur une instrumentation fiable et pr\u00e9cise. WIKA accompagne une grande installation fonctionnant par osmose inverse en fournissant des solutions de mesure pour la pression, le niveau et la temp\u00e9rature. Le client a choisi WIKA pour sa capacit\u00e9 \u00e0 proposer une offre compl\u00e8te \u00e0 partir d\u2019un seul fournisseur.<\/p>\n<p>L\u2019installation int\u00e8gre des pompes, des filtres, des r\u00e9servoirs d\u2019eau et de produits chimiques, ainsi que des structures destin\u00e9es \u00e0 compenser la pression ou \u00e0 amortir les coups de b\u00e9lier. WIKA a con\u00e7u un ensemble sur mesure, compos\u00e9 notamment de :<\/p>\n<ul>\n<li>Manom\u00e8tres, s\u00e9parateurs \u00e0 bride, pressostats et pressostats diff\u00e9rentiels<\/li>\n<li>Indicateurs et d\u00e9tecteurs de niveau<\/li>\n<li>Thermom\u00e8tres \u00e0 r\u00e9sistance, transmetteurs de temp\u00e9rature et doigts de gant<\/li>\n<li>Vannes d&rsquo;instrumentation et anneaux de rin\u00e7age pour une adaptation s\u00fbre des instruments aux points de mesure critiques, ainsi que pour les travaux de maintenance ou de nettoyage sans d\u00e9montage pr\u00e9alable des instruments concern\u00e9s.<\/li>\n<\/ul>\n<h2>Rev\u00eatement PTFE pour les applications avec des concentrations de sel tr\u00e8s \u00e9lev\u00e9es<\/h2>\n<p>Un autre facteur qui a jou\u00e9 en faveur de WIKA \u00e9tait sa capacit\u00e9 \u00e0 concevoir des pi\u00e8ces en contact avec des fluides agressifs \u00e0 partir de mat\u00e9riaux sp\u00e9ciaux adapt\u00e9s. Sur les sites de mesure pr\u00e9sentant une tr\u00e8s forte concentration en sel, par exemple, les raccords et les membranes des syst\u00e8mes de s\u00e9parateurs, ainsi que les composants en contact avec le fluide des indicateurs de niveau magn\u00e9tique, ont \u00e9t\u00e9 recouverts d&rsquo;un rev\u00eatement en PTFE. Le Monel a \u00e9t\u00e9 choisi pour les doigts de gant des thermom\u00e8tres dans les applications impliquant des produits chimiques.<\/p>\n<p>Le dessalement de l&rsquo;eau de mer est pratiqu\u00e9 dans le monde entier. WIKA dispose de sites de production dans tous les march\u00e9s cl\u00e9s et d&rsquo;un r\u00e9seau de vente tr\u00e8s dense. Les exploitants d&rsquo;installations b\u00e9n\u00e9ficient donc non seulement de la vaste expertise du groupe en mati\u00e8re de technologie de mesure, mais aussi de d\u00e9lais de livraison courts dans le monde entier.<\/p>\n<p><strong>Note<\/strong><br \/>\nSur le site Internet WIKA, vous pouvez obtenir un aper\u00e7u de l&rsquo;ensemble de notre <a href=\"https:\/\/www.wika.com\/fr-fr\/produits.WIKA\" rel=\"external\" target=\"_blank\">gamme de produits<\/a>. Nous y pr\u00e9sentons \u00e9galement d&rsquo;autres solutions de mesure pour <a href=\"https:\/\/www.wika.com\/fr-fr\/eau_et_eaux_usees.WIKA\" rel=\"external\" target=\"_blank\">l&rsquo;industrie de l&rsquo;eau et des eaux us\u00e9es.<\/a> Si vous avez d&rsquo;autres questions, n&rsquo;h\u00e9sitez pas \u00e0 <a href=\"https:\/\/www.wika.com\/fr-fr\/contact.WIKA\" rel=\"external\" target=\"_blank\">nous contacter<\/a>.<\/p>\n<p><strong>Lisez aussi nos articles<\/strong><\/p>\n<p><a href=\"https:\/\/blog.wika.com\/fr\/general\/une-solution-complte-pour-la-mesure-de-pression\/\">Une solution compl\u00e8te pour la mesure de pression &#8211; Blog WIKA<\/a><br \/>\n<a href=\"https:\/\/blog.wika.com\/fr\/applications\/mesure-niveau-eaux-souterraines\/\">Mesure de niveau dans les eaux souterraines &#8211; Blog WIKA<\/a><br \/>\n<a href=\"https:\/\/blog.wika.com\/fr\/applications\/les-capteurs-de-pression-dans-les-applications-d-eau-potable-de-quoi-faut-il-tenir-compte\/\">Capteurs de pression dans les applications d&rsquo;eau potable<\/a><br \/>\n<a href=\"https:\/\/blog.wika.com\/fr\/general\/revetements-des-instruments-de-mesure-utilisation-et-avantages\/\">Rev\u00eatements des instruments de mesure &#8211; Blog WIKA<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le dessalement de l\u2019eau de mer joue un r\u00f4le essentiel dans l\u2019approvisionnement mondial en eau potable et en eau industrielle. Face \u00e0 la demande croissante, notamment dans les r\u00e9gions arides, les acteurs du secteur multiplient les constructions d\u2019installations. Aujourd\u2019hui, plus de 22 000 usines de dessalement fonctionnent \u00e0 travers le monde. Les plus grandes, capables [&hellip;]<\/p>\n","protected":false},"author":164,"featured_media":12524,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[232,1],"tags":[430,360,394,396],"class_list":["post-12521","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-applications","category-general","tag-instruments-de-mesure","tag-mesure-de-niveau","tag-mesure-de-pression","tag-mesure-de-temprature"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Dessalement de l\u2019eau de mer : Instrumentations - Blog WIKA<\/title>\n<meta name=\"description\" content=\"Le dessalement de l&#039;eau de mer par osmose inverse pose des d\u00e9fis\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.wika.com\/fr\/general\/dessalement-de-leau-de-mer-une-technologie-de-pointe-au-service-de-leau-potable\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Dessalement de l\u2019eau de mer : Instrumentations - 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