{"id":1838,"date":"2025-04-11T17:04:35","date_gmt":"2025-04-11T09:04:35","guid":{"rendered":"http:\/\/www.luckywwtp.com\/?p=1838"},"modified":"2025-05-14T14:58:50","modified_gmt":"2025-05-14T06:58:50","slug":"the-pretreatment-system-of-reverse-osmosis-seawater-desalination-swro-dafdmf-process","status":"publish","type":"post","link":"https:\/\/www.luckywwtp.com\/fr\/the-pretreatment-system-of-reverse-osmosis-seawater-desalination-swro-dafdmf-process\/","title":{"rendered":"Le syst\u00e8me de pr\u00e9traitement du dessalement de l'eau de mer par osmose inverse (SWRO) - proc\u00e9d\u00e9 DAF+DMF"},"content":{"rendered":"

Fonction : \u00c9liminer les impuret\u00e9s telles que les boues granuleuses, les collo\u00efdes, les micro-organismes, etc. dans l'eau de mer ;
Objectif : la qualit\u00e9 de l'eau trait\u00e9e r\u00e9pond aux exigences de qualit\u00e9 de l'eau d'entr\u00e9e de la membrane d'osmose inverse, de sorte que la membrane d'osmose inverse puisse conserver de bonnes performances et un bon fonctionnement, pr\u00e9venir la pollution de surface et l'entartrage des \u00e9l\u00e9ments de la membrane d'osmose inverse, prolonger la dur\u00e9e de vie et faire en sorte que la qualit\u00e9 de l'eau produite r\u00e9ponde aux normes.
A propos du processus :
1 La flottation \u00e0 l'air dissous (DAF), \u00e9galement connue sous le nom de \"syst\u00e8me de flottation\", est le pr\u00e9traitement de premier niveau du dessalement de l'eau de mer. Elle comprend principalement des bassins de s\u00e9dimentation, des bassins de coagulation, des unit\u00e9s de flottation, des syst\u00e8mes de compresseurs d'air et des syst\u00e8mes de dosage de produits chimiques, etc.
1.1 Les m\u00e9dicaments de dosage chimique comprennent une solution d'acide sulfurique (pour ajuster la valeur du pH), une solution de FeCl3 (coagulant) et un \u00e9lectrolyte polym\u00e8re PAM (floculant).
1.2 Objets \u00e0 traiter : turbidit\u00e9 de l'eau de mer, p\u00e9trole, algues, total des solides en suspension (TSS)
1.3 L'eau trait\u00e9e contient des mati\u00e8res en suspension et des collo\u00efdes
1.4 Organigramme du proc\u00e9d\u00e9 DAF<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

2 DMF (dual medium filter) Le syst\u00e8me de filtration \u00e0 double milieu est le syst\u00e8me de deuxi\u00e8me \u00e9tape du pr\u00e9traitement du dessalement de l'eau de mer. Il comprend principalement des ventilateurs, des r\u00e9servoirs de filtration et des pompes d'eau de lavage \u00e0 contre-courant, etc.
2.1 Les types de m\u00e9dias filtrants comprennent l'anthracite, le sable de quartz (sable) et la r\u00e9sine (r\u00e9sine), etc.
2.2 Fonction : intercepter ou adsorber les mati\u00e8res en suspension et les polluants collo\u00efdaux.
2.3 Objets trait\u00e9s : turbidit\u00e9, total des solides en suspension (TSS), indice de pollution (SDI) de la production d'eau en amont
2.4 L'eau trait\u00e9e peut entrer directement dans la membrane d'osmose inverse.
2.5 Organigramme du processus DMF<\/p>\n\n\n\n

\"DMF<\/figure>","protected":false},"excerpt":{"rendered":"

Function: Remove impurities such as granular mud, colloids, microorganisms, etc. in seawater;Purpose: The treated water quality meets the inlet water quality requirements of the reverse osmosis membrane, so that the reverse osmosis membrane can maintain good performance and operation, prevent surface pollution and scaling precipitation of the reverse osmosis membrane elements, extend the service life,…<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[1,32],"tags":[273,269,274,254,275,83,272,271],"class_list":["post-1838","post","type-post","status-publish","format-standard","hentry","category-categorized","category-waste-water-treatment-news","tag-chemical-dosing-system","tag-daf","tag-daf-process","tag-dissolved-air-flotation","tag-dual-medium-filter","tag-reverse-osmosis","tag-seawatear-desalination","tag-swro"],"_links":{"self":[{"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/posts\/1838","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/comments?post=1838"}],"version-history":[{"count":1,"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/posts\/1838\/revisions"}],"predecessor-version":[{"id":1842,"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/posts\/1838\/revisions\/1842"}],"wp:attachment":[{"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/media?parent=1838"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/categories?post=1838"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.luckywwtp.com\/fr\/wp-json\/wp\/v2\/tags?post=1838"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}