{"id":7527,"date":"2026-01-06T09:32:02","date_gmt":"2026-01-06T08:32:02","guid":{"rendered":"https:\/\/www.stradal.fr\/?p=7527"},"modified":"2026-06-04T13:04:35","modified_gmt":"2026-06-04T11:04:35","slug":"valenciennes-metropole-choisit-ddselect","status":"publish","type":"actualites_chantiers","link":"https:\/\/www.stradal.fr\/en\/actualites-chantiers\/valenciennes-metropole-choisit-ddselect\/","title":{"rendered":"Valenciennes M\u00e9tropole choisit la solution DDselect\u00ae pour pr\u00e9server la Rhonnelle"},"content":{"rendered":"\n

Dans le cadre de sa politique de gestion durable des eaux pluviales, Valenciennes M\u00e9tropole a lanc\u00e9 d\u00e9but octobre 2025 un chantier \u00e0 Marly (59) visant \u00e0 am\u00e9liorer la qualit\u00e9 des rejets dans le milieu naturel.<\/p>\n\n\n\n

D\u00e9connecter les r\u00e9seaux pour mieux traiter<\/strong><\/p>\n\n\n\n

Jusqu\u2019alors, lors des \u00e9pisodes pluviaux intenses, le r\u00e9seau unitaire \u00e9tait satur\u00e9 et une partie des eaux souill\u00e9es \u00e9tait rejet\u00e9e dans la Rhonelle. La d\u00e9connexion des r\u00e9seaux permet d\u00e9sormais d\u2019assurer un bon traitement des eaux us\u00e9es via la station d\u2019\u00e9puration et de garantir un rejet de qualit\u00e9 des eaux pluviales dans la rivi\u00e8re.<\/p>\n\n\n\n

Des dispositifs innovants de d\u00e9pollution<\/strong><\/p>\n\n\n\n

Deux \u00e9quipements de d\u00e9cantation hydrodynamique ont \u00e9t\u00e9 install\u00e9s sur le nouveau r\u00e9seau des eaux pluviales. Fournis par Stradal<\/a> et coconstruits avec la technologie d’Hydro International<\/a>, ces dispositifs DDselect\u00ae<\/a> peuvent g\u00e9rer jusqu\u2019\u00e0 750 litres par seconde. Ils captent les macrod\u00e9chets, les mati\u00e8res en suspension<\/a> et les micropolluants<\/a>, jusqu\u2019\u00e0 des particules de taille m\u00e9diane de 63 microns \u2013 soit l\u2019\u00e9quivalent du diam\u00e8tre d\u2019un cheveu humain. Ce niveau de finesse assure une protection renforc\u00e9e du milieu r\u00e9cepteur<\/p>\n\n\n\n

Concilier urbanisme et environnement<\/strong><\/p>\n\n\n\n

Au-del\u00e0 de la performance technique, ce chantier illustre une volont\u00e9 forte de concilier am\u00e9nagement urbain et respect de l\u2019environnement. Il contribue \u00e0 la pr\u00e9servation de la biodiversit\u00e9 locale et \u00e0 la qualit\u00e9 des cours d\u2019eau, tout en r\u00e9pondant aux d\u00e9fis du changement climatique.<\/p>\n\n\n\n

Comme le souligne J\u00e9r\u00f4me Bourgoin, responsable eau et assainissement \u00e0 la Direction du Cycle de l\u2019Eau de Valenciennes M\u00e9tropole :<\/p>\n\n\n\n

\u00ab Il est vital de r\u00e9infiltrer une eau saine dans nos rivi\u00e8res pour pr\u00e9server nos ressources en eau. \u00bb<\/p>\n\n\n\n

Ce projet t\u00e9moigne de l\u2019importance croissante accord\u00e9e \u00e0 la gestion des eaux pluviales, enjeu majeur pour les territoires urbains. Valenciennes M\u00e9tropole confirme ainsi son engagement pour une transition \u00e9cologique durable et la protection de ses ressources en eau.<\/p>\n\n\n\n

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POSE D’UN DECANTEUR HYDRODYNAMIQUES DDSELECT , DDS POUR DEPOLLUER LES EAUX PLUVIALES ET DE RUISSELLEMENT, MARLY, VALENCIENNES METROPOLE (59), STRADAL<\/p>\n\n\n\n

D\u00e9couvrez l’article de La Voix du Nord, d\u00e9di\u00e9 \u00e0 ce chantier : https:\/\/www.lavoixdunord.fr\/1672604\/article\/2026-02-07\/hydrocarbures-plastiques-megots-face-la-pollution-un-chantier-innovant-pour<\/a><\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

La pollution des eaux de ruissellement constitue un enjeu majeur pour la protection des milieux aquatiques et la pr\u00e9servation de la ressource en eau, particuli\u00e8rement pour les collectivit\u00e9s confront\u00e9es \u00e0 l\u2019urbanisation et au changement climatique<\/p>\n","protected":false},"featured_media":7530,"template":"","actualites_chantiers_category":[27],"class_list":["post-7527","actualites_chantiers","type-actualites_chantiers","status-publish","has-post-thumbnail","hentry","actualites_chantiers_category-realisations"],"acf":[],"yoast_head":"\nValenciennes M\u00e9tropole choisit la solution DDselect\u00ae pour pr\u00e9server la Rhonnelle - Stradal<\/title>\n<meta name=\"description\" content=\"Valenciennes M\u00e9tropole a lanc\u00e9 d\u00e9but octobre 2025 un chantier \u00e0 Marly (59) visant \u00e0 am\u00e9liorer la qualit\u00e9 des rejets dans le milieu naturel.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.stradal.fr\/actualites-chantiers\/valenciennes-metropole-choisit-ddselect\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Valenciennes M\u00e9tropole choisit la solution DDselect\u00ae pour pr\u00e9server la Rhonnelle - 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