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filter-lit-sable filter-facultatif eg-jason-wrapper eg-post-id-1200\" data-date=\"1462371444\">\n    <div class=\"esg-media-cover-wrapper\">\n<div class=\"esg-entry-media\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/lama.es\/wp-content\/plugins\/essential-grid\/public\/assets\/images\/300x200transparent.png\" data-lazysrc=\"https:\/\/lama.es\/wp-content\/uploads\/2016\/05\/lecho-especial-portada.jpg\" alt=\"\" width=\"260\" height=\"260\"><\/div>\n\n            <div class=\"esg-entry-cover\" data-clickable=\"on\">\n\n<a class=\"eg-invisiblebutton\" href=\"https:\/\/lama.es\/fr\/portfolio_page\/special\/\" target=\"_self\"><\/a>                <div class=\"esg-overlay esg-fade eg-jason-container\" data-delay=\"0\"><\/div>\n\n\t\t\t\t<div class=\"esg-center eg-post-1200 eg-jason-element-33 esg-slideshortup\" data-delay=\"0\">Sp\u00e9cial<\/div>\n           <\/div>\n   <\/div>\n\n<\/li>\n<\/ul>\n    <\/div>\n\n<\/article>\n<div class=\"clear\"><\/div>\n<script 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et, certainement le syst\u00e8me le plus efficace parmi ceux appliqu\u00e9s aux traitements industriels. Il est habituellement qualifi\u00e9 de \u00ab Filtration sur lit de sable \u00bb bien que ces filtres peuvent utiliser tout type de lit adapt\u00e9 \u00e0 la r\u00e9tention de particules.<\/p>\n<p>&nbsp;<\/p>\n<p>La filtration consiste en la r\u00e9tention des solides non dissous dans l&rsquo;eau par les trous form\u00e9s entre les grains de sable, \u00e0 travers toute la couche filtrante. Il s&rsquo;agit d&rsquo;une filtration en profondeur, caract\u00e9ristique qui en fait le syst\u00e8me de filtration le plus efficace. Ce syst\u00e8me pr\u00e9sente la particularit\u00e9 de r\u00e9sister aux eaux les plus pollu\u00e9es. Ce filtre peut retenir les solides, organiques et inorganiques, de petite taille gr\u00e2ce aux forces \u00e9lectriques issues du frottement entre les impuret\u00e9s et le lit de filtration.<\/p>\n<p>&nbsp;<\/p>\n<p>L&rsquo;eau doit pouvoir circuler doucement au sein des filtres sur lit. Dans le cas contraire, les chemins de passage de l&rsquo;eau s&rsquo;\u00e9rodent, ralentissant la filtration.<\/p>\n<p>&nbsp;<\/p>\n<p>Pour \u00e9viter que le sable ne passe dans la zone d&rsquo;eau filtr\u00e9e, des bras collecteurs ou des cr\u00e9pines sont install\u00e9s \u00e0 la base de la couche de sable (zone d&rsquo;eau filtr\u00e9e), sur une structure sp\u00e9ciale. Ces \u00e9l\u00e9ments recouvrent toute la surface du lit afin de permettre une circulation uniforme de l&rsquo;eau et de r\u00e9duire la perte de charge de l&rsquo;\u00e9quipement.<\/p>\n<p>&nbsp;<\/p>\n<p>Si les eaux \u00e0 traiter abritent une grande quantit\u00e9 de substances dissoutes ou de pr\u00e9cipit\u00e9s m\u00e9talliques, on a recours \u00e0 la floculation, processus durant lequel ces particules s&rsquo;agglom\u00e8rent pour faciliter leur r\u00e9tention dans le lit. Ainsi, les particules de petites tailles ne traversent pas le lit de filtration. La floculation est obtenue \u00e0 l&rsquo;aide d&rsquo;\u00e9l\u00e9ments chimiques complexes appel\u00e9s poly\u00e9lectrolytes.<\/p>\n<p>&nbsp;<\/p>\n<p>Toutes les pi\u00e8ces en acier au carbone, internes et externes, sont trait\u00e9es par bain d&rsquo;impr\u00e9gnation. Pour finir, elles sont peintes par projection \u00e9lectrostatique de poudre epoxy polyester.<\/p>\n<p>&nbsp;<\/p>\n<p>Chez Lama, nous fabriquons des produits avec la norme ASME.<\/p>\n<p>&nbsp;<\/p>\n<h2>Applications<\/h2>\n<p>&nbsp;<\/p>\n<p>En fonction du type de lit et de la vitesse appliqu\u00e9e :<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li>Filtration pr\u00e9alable \u00e0 l&rsquo;osmose inverse<\/li>\n<li>Potabilisation<\/li>\n<li>Suppression de la turbidit\u00e9<\/li>\n<li>Piscicultures<\/li>\n<li>Industrie alimentaire (normalement, les boissons)<\/li>\n<li>Agro-industrie<\/li>\n<li>Traitement des effluents&#8230;<\/li>\n<\/ul>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][vc_row row_type=\u00a0\u00bbrow\u00a0\u00bb use_row_as_full_screen_section=\u00a0\u00bbno\u00a0\u00bb type=\u00a0\u00bbfull_width\u00a0\u00bb angled_section=\u00a0\u00bbno\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb background_image_as_pattern=\u00a0\u00bbwithout_pattern\u00a0\u00bb css_animation=\u00a0\u00bb\u00a0\u00bb css=\u00a0\u00bb.vc_custom_1504699100411{margin-top: 30px !important;}\u00a0\u00bb][vc_column][\/vc_column][\/vc_row]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[vc_row row_type=\u00a0\u00bbrow\u00a0\u00bb use_row_as_full_screen_section=\u00a0\u00bbno\u00a0\u00bb type=\u00a0\u00bbfull_width\u00a0\u00bb angled_section=\u00a0\u00bbno\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb background_image_as_pattern=\u00a0\u00bbwithout_pattern\u00a0\u00bb css_animation=\u00a0\u00bb\u00a0\u00bb][vc_column width=\u00a0\u00bb1\/2&Prime;][vc_column_text][\/vc_column_text][\/vc_column][vc_column width=\u00a0\u00bb1\/2&Prime;][vc_column_text]La filtration sur couche ou lit granulaire est universellement connue et, certainement le syst\u00e8me le plus efficace parmi ceux appliqu\u00e9s aux traitements industriels. Il est habituellement qualifi\u00e9 de \u00ab Filtration sur lit de sable \u00bb bien&#8230;<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1998","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Filtres \u00e0 lit-sable | Lama<\/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:\/\/lama.es\/fr\/filtres-a-lit-sable\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Filtres \u00e0 lit-sable | Lama\" \/>\n<meta property=\"og:description\" content=\"[vc_row row_type=\u00a0\u00bbrow\u00a0\u00bb use_row_as_full_screen_section=\u00a0\u00bbno\u00a0\u00bb type=\u00a0\u00bbfull_width\u00a0\u00bb angled_section=\u00a0\u00bbno\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb background_image_as_pattern=\u00a0\u00bbwithout_pattern\u00a0\u00bb css_animation=\u00a0\u00bb\u00a0\u00bb][vc_column width=\u00a0\u00bb1\/2&Prime;][vc_column_text][\/vc_column_text][\/vc_column][vc_column width=\u00a0\u00bb1\/2&Prime;][vc_column_text]La filtration sur couche ou lit granulaire est universellement connue et, certainement le syst\u00e8me le plus efficace parmi ceux appliqu\u00e9s aux traitements industriels. Il est habituellement qualifi\u00e9 de \u00ab Filtration sur lit de sable \u00bb bien...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/lama.es\/fr\/filtres-a-lit-sable\/\" \/>\n<meta property=\"og:site_name\" content=\"LAMA Sistema de Filtrado\" \/>\n<meta property=\"article:modified_time\" content=\"2017-12-21T03:33:17+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/lama.es\/fr\/filtres-a-lit-sable\/\",\"url\":\"https:\/\/lama.es\/fr\/filtres-a-lit-sable\/\",\"name\":\"Filtres \u00e0 lit-sable | Lama\",\"isPartOf\":{\"@id\":\"https:\/\/lama.es\/fr\/#website\"},\"datePublished\":\"2017-09-28T08:48:14+00:00\",\"dateModified\":\"2017-12-21T03:33:17+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/lama.es\/fr\/filtres-a-lit-sable\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/lama.es\/fr\/filtres-a-lit-sable\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/lama.es\/fr\/filtres-a-lit-sable\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Portada\",\"item\":\"https:\/\/lama.es\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Filtres \u00e0 lit-sable\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/lama.es\/fr\/#website\",\"url\":\"https:\/\/lama.es\/fr\/\",\"name\":\"LAMA Sistema de Filtrado\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/lama.es\/fr\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Filtres \u00e0 lit-sable | Lama","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/lama.es\/fr\/filtres-a-lit-sable\/","og_locale":"fr_FR","og_type":"article","og_title":"Filtres \u00e0 lit-sable | Lama","og_description":"[vc_row row_type=\u00a0\u00bbrow\u00a0\u00bb use_row_as_full_screen_section=\u00a0\u00bbno\u00a0\u00bb type=\u00a0\u00bbfull_width\u00a0\u00bb angled_section=\u00a0\u00bbno\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb background_image_as_pattern=\u00a0\u00bbwithout_pattern\u00a0\u00bb css_animation=\u00a0\u00bb\u00a0\u00bb][vc_column width=\u00a0\u00bb1\/2&Prime;][vc_column_text][\/vc_column_text][\/vc_column][vc_column width=\u00a0\u00bb1\/2&Prime;][vc_column_text]La filtration sur couche ou lit granulaire est universellement connue et, certainement le syst\u00e8me le plus efficace parmi ceux appliqu\u00e9s aux traitements industriels. 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