{"id":5097,"date":"2020-12-17T09:30:26","date_gmt":"2020-12-17T09:30:26","guid":{"rendered":"http:\/\/hydroitalia.com\/impianti\/deshuileurs\/"},"modified":"2022-11-02T14:58:53","modified_gmt":"2022-11-02T14:58:53","slug":"deshuileurs","status":"publish","type":"impianti","link":"https:\/\/www.hydroitalia.com\/fr\/installations\/deshuileurs\/","title":{"rendered":"Deshuileurs"},"content":{"rendered":"\n<p>Les <strong>huiles<\/strong> et les <strong>graisses<\/strong> sont pr\u00e9sentes dans de nombreux rejets civils et sont typiquement pr\u00e9sentes dans de nombreuses <strong>eaux us\u00e9es industrielles<\/strong>.<\/p>\n\n<h2 class=\"has-black-color has-text-color\" style=\"font-size:30px\">Syst\u00e8mes de d\u00e9shuilage : s\u00e9paration de la phase huileuse<\/h2>\n\n<p>L&rsquo;\u00e9limination des huiles et des graisses de l&rsquo;eau est n\u00e9cessaire, mais avec des objectifs diff\u00e9rents : s\u00e9parer la phase huileuse de la phase aqueuse avec des <strong>d\u00e9shuileurs<\/strong> appropri\u00e9s avant d&rsquo;\u00eatre introduite dans une masse d&rsquo;eau naturelle ou avant de proc\u00e9der au <strong>traitement d&rsquo;\u00e9puration des eaux us\u00e9es<\/strong>, si ceux-ci contiennent des <strong>huiles<\/strong> et des <strong>hydrocarbures<\/strong>.<\/p>\n\n<p>Les huiles et graisses sont pr\u00e9sentes dans de nombreuses eaux us\u00e9es issues de proc\u00e9d\u00e9s industriels et notamment dans celles relatives \u00e0 des utilisateurs particuliers tels que les usines, les ateliers automobiles, les lave-autos, etc.<\/p>\n\n<p>Leur \u00e9limination est n\u00e9cessaire avant de p\u00e9n\u00e9trer dans un plan d&rsquo;eau r\u00e9cepteur naturel ou un \u00e9gout. L&rsquo;opportunit\u00e9 d&rsquo;une \u00e9limination pr\u00e9ventive avant de proc\u00e9der au traitement d&rsquo;\u00e9puration des eaux us\u00e9es est \u00e9vidente si l&rsquo;on consid\u00e8re que les huiles et les graisses peuvent causer de s\u00e9rieux inconv\u00e9nients dans toutes les phases du traitement d&rsquo;\u00e9puration ult\u00e9rieur.<\/p>\n\n<p>De plus, des probl\u00e8mes d&rsquo;accumulation et de colmatage peuvent survenir sur les \u00e9gouts d&rsquo;alimentation de la station d&rsquo;\u00e9puration et sur les syst\u00e8mes de relevage ; de lourds probl\u00e8mes peuvent survenir dans les phases de traitement biologique a\u00e9robie, o\u00f9 des difficult\u00e9s d&rsquo;\u00e9puration peuvent survenir. Il en est de m\u00eame dans la phase de digestion ana\u00e9robie des boues, car les huiles et les graisses, surtout si elles ne sont pas biod\u00e9gradables, restent accumul\u00e9es dans les digesteurs, inhibant les r\u00e9actions biologiques ; m\u00eame lors de la d\u00e9shydratation m\u00e9canique des boues, les huiles et les graisses ont tendance \u00e0 obstruer les toiles des machines de d\u00e9shydratation.<\/p>\n\n<h2>Types de d\u00e9shuileurs<\/h2>\n\n<p>Dans les applications pratiques, on distingue principalement deux types de <strong>s\u00e9parateurs d&rsquo;huile<\/strong>:<\/p>\n\n<ol><li><strong>d\u00e9shuileurs<\/strong> gravitaires statiques \u00e0 pression atmosph\u00e9rique ; sans l&rsquo;aide de machines en mouvement ou la n\u00e9cessit\u00e9 de doser des produits chimiques<\/li><li><strong>d\u00e9shuileurs<\/strong> par coalescence<\/li><\/ol>\n<div class=\"wp-container-2 wp-block-columns\">\n<div class=\"wp-container-1 wp-block-column\">\n<p>Nos syst\u00e8mes garantissent la s\u00e9paration de l&rsquo;huile non \u00e9mulsionn\u00e9e et l&rsquo;\u00e9limination compl\u00e8te de l&rsquo;huile s\u00e9par\u00e9e pr\u00e9sente \u00e0 proximit\u00e9 imm\u00e9diate du flotteur.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>S\u00e9parer les huiles et les graisses des eaux us\u00e9es civiles et industrielles. <\/p>\n","protected":false},"featured_media":2464,"template":"","meta":[],"categories":[],"tags":[92,95,100,102,103,105],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.2.1 - 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