{"id":8425,"date":"2022-07-05T10:49:00","date_gmt":"2022-07-05T08:49:00","guid":{"rendered":"https:\/\/www.alsys-group.com\/?p=8425"},"modified":"2022-07-12T14:05:59","modified_gmt":"2022-07-12T12:05:59","slug":"diafiltration-par-filtration-tangentielle","status":"publish","type":"post","link":"https:\/\/www.alsys-group.com\/fr\/membranes\/diafiltration-par-filtration-tangentielle\/","title":{"rendered":"Diafiltration par filtration tangentielle"},"content":{"rendered":"<h2>Diafiltration par filtration tangentielle<\/h2>\n<p>Le Principe de la diafiltration par filtration tangentielle est le suivant&nbsp;:<\/p>\n<p style=\"line-height: 18.75pt; background: white; vertical-align: baseline; margin: 0cm 0cm 11.25pt 0cm;\"><span style=\"font-size: 13.5pt; font-family: inherit; color: #323232;\">La diafiltration est un proc\u00e9d\u00e9 de filtration tangentielle membranaire. Il consiste \u00e0 ajouter en continu un volume d\u2019eau d\u00e9min\u00e9ralis\u00e9e au liquide d\u2019alimentation \u00e0 diafiltrer. Ce volume d\u2019eau d\u00e9min\u00e9ralis\u00e9e est \u00e9gal au volume de perm\u00e9at que l&rsquo;on retire. Le liquide d\u2019alimentation reste, quant \u00e0 lui, \u00e0 sa concentration initiale.<\/span><\/p>\n<p>Cette op\u00e9ration permet donc soit&nbsp;:<\/p>\n<ul>\n<li>De purifier un milieu r\u00e9actionnel en retirant la quasi-totalit\u00e9 de ses impuret\u00e9s,<\/li>\n<li>D\u2019extraire ou d\u2019\u00e9puiser le milieu r\u00e9actionnel du produit d\u2019int\u00e9r\u00eat.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>D&rsquo;ailleurs, ce proc\u00e9d\u00e9 s\u2019apparente \u00e0 une dialyse. Il n\u00e9cessite cependant de plus faibles volumes de liquide et est plus rapide. Ce proc\u00e9d\u00e9 de filtration met en \u0153uvre, g\u00e9n\u00e9ralement, des membranes d\u2019UF, MF et quelques fois de NF.<\/p>\n<p>Le volume de diafiltration d\u00e9pend de la concentration de la mol\u00e9cule \u00e0 extraire et du niveau de puret\u00e9 recherch\u00e9. Plus le volume de diafiltration est \u00e9lev\u00e9 et plus la puret\u00e9 est grande.<\/p>\n<p>&nbsp;<\/p>\n<p>Le sch\u00e9ma de principe est le suivant\u00a0:\u00a0<\/p>\n<h3 style=\"text-align: center;\">Sch\u00e9ma de principe de la diafiltration<a href=\"https:\/\/www.alsys-group.com\/app\/uploads\/2022\/07\/2022-13-photo1-schema-de-principe-fr.png\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-9533 size-full\" src=\"https:\/\/www.alsys-group.com\/app\/uploads\/2022\/07\/2022-13-photo1-schema-de-principe-fr.png\" alt=\"Sch\u00e9ma de principe de la diafiltration\" width=\"1134\" height=\"302\" srcset=\"https:\/\/www.alsys-group.com\/app\/uploads\/2022\/07\/2022-13-photo1-schema-de-principe-fr.png 1134w, https:\/\/www.alsys-group.com\/app\/uploads\/2022\/07\/2022-13-photo1-schema-de-principe-fr-300x80.png 300w, https:\/\/www.alsys-group.com\/app\/uploads\/2022\/07\/2022-13-photo1-schema-de-principe-fr-1024x273.png 1024w, https:\/\/www.alsys-group.com\/app\/uploads\/2022\/07\/2022-13-photo1-schema-de-principe-fr-768x205.png 768w\" sizes=\"(max-width: 1134px) 100vw, 1134px\" \/><\/a><\/h3>\n<p>Ci-dessous, nous vous pr\u00e9sentons le dessin qui repr\u00e9sente le fonctionnement d&rsquo;un module de filtration tangentielle K03 en situation de diafiltration&nbsp;:<\/p>\n<h3 style=\"text-align: center;\"><a href=\"https:\/\/www.alsys-group.com\/fr\/services\/conception-et-fabrication-de-systeme-par-membrane\/conception-dequipement\/\">Module de filtration<\/a><a href=\"https:\/\/www.alsys-group.com\/app\/uploads\/2022\/07\/2022-13-photo2-30x15-fr.png\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-9525 size-full\" src=\"https:\/\/www.alsys-group.com\/app\/uploads\/2022\/07\/2022-13-photo2-30x15-fr.png\" alt=\"Module de filtration\" width=\"1134\" height=\"567\" srcset=\"https:\/\/www.alsys-group.com\/app\/uploads\/2022\/07\/2022-13-photo2-30x15-fr.png 1134w, https:\/\/www.alsys-group.com\/app\/uploads\/2022\/07\/2022-13-photo2-30x15-fr-300x150.png 300w, https:\/\/www.alsys-group.com\/app\/uploads\/2022\/07\/2022-13-photo2-30x15-fr-1024x512.png 1024w, https:\/\/www.alsys-group.com\/app\/uploads\/2022\/07\/2022-13-photo2-30x15-fr-768x384.png 768w\" sizes=\"(max-width: 1134px) 100vw, 1134px\" \/><\/a><\/h3>\n<h3 style=\"text-align: center;\">R\u00e9sultat de la diafiltration<a href=\"https:\/\/www.alsys-group.com\/app\/uploads\/2022\/07\/2022-13-photo3-30x11-1.png\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-9529 size-full\" src=\"https:\/\/www.alsys-group.com\/app\/uploads\/2022\/07\/2022-13-photo3-30x11-1.png\" alt=\"Diafiltration en filtration tangentielle\" width=\"1134\" height=\"416\" srcset=\"https:\/\/www.alsys-group.com\/app\/uploads\/2022\/07\/2022-13-photo3-30x11-1.png 1134w, https:\/\/www.alsys-group.com\/app\/uploads\/2022\/07\/2022-13-photo3-30x11-1-300x110.png 300w, https:\/\/www.alsys-group.com\/app\/uploads\/2022\/07\/2022-13-photo3-30x11-1-1024x376.png 1024w, https:\/\/www.alsys-group.com\/app\/uploads\/2022\/07\/2022-13-photo3-30x11-1-768x282.png 768w\" sizes=\"(max-width: 1134px) 100vw, 1134px\" \/><\/a><\/h3>\n<p><em>A gauche&nbsp;: Produit \u00e0 diafiltrer (concentrat)<br \/>\n<\/em><\/p>\n<p><em>A droite&nbsp;: Perm\u00e9at apr\u00e8s diafiltration (avec les mol\u00e9cules venant du concentrat)<br \/>\n<\/em><\/p>\n<p>&nbsp;<\/p>\n<p>Parmi les applications de cette technique on retrouve\u00a0:<\/p>\n<ul>\n<li>Extraction \/ \u00e9puisement de mol\u00e9cules d\u2019int\u00e9r\u00eat d\u2019un mo\u00fbt de fermentation,<\/li>\n<li>Lavage des sels pr\u00e9sents dans une solution de colorants,<\/li>\n<li>Extraction du lactose du petit-lait.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>Enfin, une op\u00e9ration de concentration pour diminuer les volumes compl\u00e8te g\u00e9n\u00e9ralement les op\u00e9rations de diafiltration.<\/p>\n<p>&nbsp;<\/p>\n<p>Confiez-nous votre projet et nous d\u00e9terminerons ensemble les services et produits qui vous conviennent le mieux&nbsp;: <a href=\"mailto:orelis@alsys-group.com\">orelis@alsys-group.com<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Diafiltration par filtration tangentielle Le Principe de la diafiltration par filtration tangentielle est le suivant&nbsp;: La diafiltration est un proc\u00e9d\u00e9 de filtration tangentielle membranaire. Il consiste \u00e0 ajouter en continu un volume d\u2019eau d\u00e9min\u00e9ralis\u00e9e au liquide d\u2019alimentation \u00e0 diafiltrer. Ce volume d\u2019eau d\u00e9min\u00e9ralis\u00e9e est \u00e9gal au volume de perm\u00e9at que l&rsquo;on retire. Le liquide d\u2019alimentation [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":9517,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[68],"tags":[],"acf":[],"taxonomies":{"categories":[{"term_id":68,"name":"Membranes","slug":"membranes","term_group":0,"term_taxonomy_id":68,"taxonomy":"category","description":"","parent":0,"count":62,"filter":"raw","term_order":"0","cat_ID":68,"category_count":62,"category_description":"","cat_name":"Membranes","category_nicename":"membranes","category_parent":0}]},"_links":{"self":[{"href":"https:\/\/www.alsys-group.com\/fr\/wp-json\/wp\/v2\/posts\/8425"}],"collection":[{"href":"https:\/\/www.alsys-group.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.alsys-group.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.alsys-group.com\/fr\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alsys-group.com\/fr\/wp-json\/wp\/v2\/comments?post=8425"}],"version-history":[{"count":51,"href":"https:\/\/www.alsys-group.com\/fr\/wp-json\/wp\/v2\/posts\/8425\/revisions"}],"predecessor-version":[{"id":9589,"href":"https:\/\/www.alsys-group.com\/fr\/wp-json\/wp\/v2\/posts\/8425\/revisions\/9589"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alsys-group.com\/fr\/wp-json\/wp\/v2\/media\/9517"}],"wp:attachment":[{"href":"https:\/\/www.alsys-group.com\/fr\/wp-json\/wp\/v2\/media?parent=8425"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alsys-group.com\/fr\/wp-json\/wp\/v2\/categories?post=8425"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alsys-group.com\/fr\/wp-json\/wp\/v2\/tags?post=8425"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}