{"id":23989,"date":"2023-09-08T17:02:35","date_gmt":"2023-09-08T15:02:35","guid":{"rendered":"https:\/\/asso.graie.org\/portail\/?p=23989"},"modified":"2025-09-23T14:16:17","modified_gmt":"2025-09-23T12:16:17","slug":"kit-pedagogique-deversoirs-d-orage","status":"publish","type":"post","link":"https:\/\/asso.graie.org\/portail\/kit-pedagogique-deversoirs-d-orage\/","title":{"rendered":"Instrumentation des d\u00e9versoirs d&rsquo;orage | Kit p\u00e9dagogique &#8211; \u00c9l\u00e9ments cl\u00e9s"},"content":{"rendered":"\n<div style=\"height:45px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">La vid\u00e9o du kit p\u00e9dagogique sur l&rsquo;instrumentation des d\u00e9versoirs d&rsquo;orage est d\u00e8s maintenant disponible sur la cha\u00eene youtube du Graie !<\/h2>\n\n\n\n<div style=\"height:45px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-1 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-white-color has-vivid-cyan-blue-background-color has-text-color has-background wp-element-button\" href=\"https:\/\/www.youtube.com\/watch?v=CwFl6il5eyQ&amp;feature=youtu.be\"><strong>VOIR LA VID\u00c9O<\/strong> (15 min.)<\/a><\/div>\n<\/div>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<div class=\"wp-block-image is-style-default\">\n<figure class=\"aligncenter size-medium\"><img decoding=\"async\" loading=\"lazy\" width=\"300\" height=\"169\" src=\"https:\/\/asso.graie.org\/portail\/wp-content\/uploads\/2023\/09\/Vignette_youtube_Kit_DO-300x169.png\" alt=\"\" class=\"wp-image-23990\" srcset=\"https:\/\/asso.graie.org\/portail\/wp-content\/uploads\/2023\/09\/Vignette_youtube_Kit_DO-300x169.png 300w, https:\/\/asso.graie.org\/portail\/wp-content\/uploads\/2023\/09\/Vignette_youtube_Kit_DO-1024x576.png 1024w, https:\/\/asso.graie.org\/portail\/wp-content\/uploads\/2023\/09\/Vignette_youtube_Kit_DO-768x432.png 768w, https:\/\/asso.graie.org\/portail\/wp-content\/uploads\/2023\/09\/Vignette_youtube_Kit_DO-390x220.png 390w, https:\/\/asso.graie.org\/portail\/wp-content\/uploads\/2023\/09\/Vignette_youtube_Kit_DO.png 1280w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/figure><\/div>\n\n\n<div style=\"height:45px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-2 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-fill\"><a class=\"wp-block-button__link has-white-color has-text-color wp-element-button\" href=\"https:\/\/www.graie.org\/graie\/graiedoc\/reseaux\/autosurv\/KIT-DO-METROLOGIE%20EN%20SYSTEME%20ASSAINISSEMENT-dec22v4-2lg.pdf\">Version PDF en fran\u00e7ais <\/a><\/div>\n\n\n\n<div class=\"wp-block-button is-style-fill\"><a class=\"wp-block-button__link has-white-color has-text-color wp-element-button\" href=\"https:\/\/www.graie.org\/graie\/graiedoc\/reseaux\/autosurv\/KIT-DO-METROLOGIE%20EN%20SYSTEME%20ASSAINISSEMENT-dec22v4-2lg%20en.pdf\">Version PDF in english<\/a><\/div>\n<\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Le principe de fonctionnement d\u2019un d\u00e9versoir d\u2019orage<\/h3>\n\n\n\n<p>Un d\u00e9versoir d\u2019orage (DO) est un <strong>ouvrage de d\u00e9bordement des eaux <\/strong>install\u00e9 sur un syst\u00e8me de collecte unitaire (ou pseudo-s\u00e9paratif), c\u2019est-\u00e0-dire collectant des eaux us\u00e9es et pluviales.<\/p>\n\n\n\n<p>Son objectif initial est essentiellement hydraulique&nbsp;: il s\u2019agit de <strong><u>soulager le syst\u00e8me d\u2019assainissement \u00e0 l\u2019aval<\/u><\/strong>, en cas de fortes pluies, que ce soit pour \u00e9viter des inondations par d\u00e9bordement de r\u00e9seau non maitris\u00e9es ou pour prot\u00e9ger les installations de traitement du lessivage.<\/p>\n\n\n\n<p>Ainsi, en cas de fortes pluies, les d\u00e9versoirs d\u2019orage permettent le rejet direct vers le milieu r\u00e9cepteur d\u2019un m\u00e9lange d\u2019eaux us\u00e9es et d\u2019eaux pluviales.<\/p>\n\n\n\n<div style=\"height:42px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Optimiser le fonctionnement des d\u00e9versoirs d&rsquo;orage<\/h3>\n\n\n\n<p>Cependant, la conception et la gestion des d\u00e9versoirs d\u2019orage doivent \u00e9galement int\u00e9grer des <strong><u>objectifs de pr\u00e9servation de la qualit\u00e9 des milieux r\u00e9cepteurs<\/u>. <\/strong>Il s\u2019agit de prendre en compte la pollution v\u00e9hicul\u00e9e par les rejets urbains de temps de pluie et leur impact possible sur les milieux r\u00e9cepteurs.<\/p>\n\n\n\n<p>Ainsi, tout en assurant la fonction initiale de protection du syst\u00e8me \u00e0 l\u2019aval, le fonctionnement des d\u00e9versoirs d\u2019orage doit \u00eatre optimis\u00e9 au regard de la protection du milieu, en limitant la fr\u00e9quence, les volumes des d\u00e9versements et les flux de pollution ainsi rejet\u00e9s dans le milieu naturel.<\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">La r\u00e8glementation autour des d\u00e9versoirs d&rsquo;orage<\/h3>\n\n\n\n<p>Ce sont des ouvrages soumis \u00e0 une autosurveillance r\u00e9glementaire par les collectivit\u00e9s. La r\u00e9glementation fran\u00e7aise, par d\u00e9clinaison de la Directive europ\u00e9enne Eaux R\u00e9siduaires Urbaines, DERU, pr\u00e9voit que les collectivit\u00e9s surveillent les d\u00e9versements au droit des DO les plus impactant. La directive europ\u00e9enne est d\u2019ailleurs en cours de r\u00e9vision, avec des objectifs encore plus ambitieux quant \u00e0 la r\u00e9duction des rejets urbains de temps de pluie.<\/p>\n\n\n\n<p>Actuellement, selon la charge brute de pollution organique collect\u00e9e par temps sec au droit d\u2019un d\u00e9versoir, les collectivit\u00e9s doivent soit estimer, soit mesurer, ce d\u00e9bit. De plus pour les DO \u2265 600 kg\/j de DBO5 et d\u00e9versant plus de 10 j\/an en moyenne quinquennale, il est aussi demand\u00e9 d\u2019estimer la charge polluante (DBO5, DCO, MES, NTK, Ptot).<\/p>\n\n\n\n<div style=\"height:54px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading has-light-green-cyan-background-color has-background\">Instrumenter correctement les d\u00e9versoirs d&rsquo;orage<\/h3>\n\n\n\n<p class=\"has-white-background-color has-background\">I<strong>nstrumenter un DO est une d\u00e9marche complexe<\/strong>, qui n\u00e9cessite d\u2019avoir en t\u00eate quelques <strong>\u00e9tapes cl\u00e9s <\/strong>avant de se lancer&nbsp;!<br>L\u2019objectif de ce Kit p\u00e9dagogique, sous forme d\u2019une vid\u00e9o de 15min, est tout d\u2019abord d\u2019exposer la <strong>d\u00e9marche, d\u00e9clin\u00e9e en 5 \u00e9tapes cl\u00e9s<\/strong>.<br>Il pr\u00e9sente et explicite ensuite les diff\u00e9rentes <strong>mesures et estimations<\/strong> possibles du d\u00e9bit en r\u00e9seaux d\u2019assainissement, afin de permettre aux gestionnaires de faire un choix \u00e9clair\u00e9 sur les m\u00e9thodes de mesure ou d\u2019estimation qu\u2019ils retiendront.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-light-green-cyan-color has-css-opacity has-light-green-cyan-background-color has-background\"\/>\n\n\n\n<div style=\"height:41px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Contributeurs :<\/h3>\n\n\n\n<p>Ce Kit a \u00e9t\u00e9 r\u00e9alis\u00e9 par le groupe de travail Autosurveillance des syst\u00e8mes d\u2019assainissement, avec notamment la contribution des organismes suivants :<br><strong>Agence de l\u2019eau RMC, Agence de l\u2019eau Loire Bretagne, Agglo Villefranche, G2C environnement- Alt\u00e9r\u00e9o ,Grand Chamb\u00e9ry, INSA Lyon DEEP, M\u00e9tropole de Lyon, SUEZ Eau France, Suez Consulting, Valence Romans Agglo, Veolia EAU, Vienne Condrieu Agglom\u00e9ration, 3DEAU, AEGIR &amp; le Graie.<\/strong><\/p>\n\n\n\n<p><em><em>RAPPEL : Les publications du groupe de travail autosurveillance du GRAIE sont des documents courts, notes et fiches, m\u00e9thodologiques ou techniques ou kits p\u00e9dagogiques. L\u2019objectif est de capitaliser des retours d\u2019exp\u00e9rience, notamment sur des technologies de mesure, de fa\u00e7on synth\u00e9tique et pragmatique, afin d\u2019aider les collectivit\u00e9s \u00e0 mettre en \u0153uvre l\u2019autosurveillance de leur syst\u00e8me d\u2019assainissement.<\/em><\/em><\/p>\n\n\n\n<div style=\"height:41px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>Contact &amp; informations <\/strong>: <a href=\"https:\/\/asso.graie.org\/portail\/laetitia-bacot\/\">La\u00ebtitia BACOT<\/a> \u2013 Graie<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<div style=\"height:41px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img decoding=\"async\" loading=\"lazy\" width=\"6000\" height=\"1300\" src=\"https:\/\/asso.graie.org\/portail\/wp-content\/uploads\/2023\/10\/Kit_DO_part-1.png\" alt=\"\" class=\"wp-image-24377\" srcset=\"https:\/\/asso.graie.org\/portail\/wp-content\/uploads\/2023\/10\/Kit_DO_part-1.png 6000w, https:\/\/asso.graie.org\/portail\/wp-content\/uploads\/2023\/10\/Kit_DO_part-1-300x65.png 300w, https:\/\/asso.graie.org\/portail\/wp-content\/uploads\/2023\/10\/Kit_DO_part-1-1024x222.png 1024w, https:\/\/asso.graie.org\/portail\/wp-content\/uploads\/2023\/10\/Kit_DO_part-1-768x166.png 768w, https:\/\/asso.graie.org\/portail\/wp-content\/uploads\/2023\/10\/Kit_DO_part-1-1536x333.png 1536w, https:\/\/asso.graie.org\/portail\/wp-content\/uploads\/2023\/10\/Kit_DO_part-1-2048x444.png 2048w\" sizes=\"(max-width: 6000px) 100vw, 6000px\" \/><\/figure>\n\n\n\n<div style=\"height:68px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-3 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-white-color has-vivid-cyan-blue-background-color has-text-color has-background wp-element-button\" href=\"https:\/\/www.youtube.com\/watch?v=CwFl6il5eyQ&amp;feature=youtu.be\"><strong>VOIR LA VID\u00c9O<\/strong><\/a><\/div>\n<\/div>\n\n\n\n<div style=\"height:141px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Instrumenter un DO est complexe, et n\u00e9cessite d\u2019avoir en t\u00eate quelques \u00e9tapes cl\u00e9s avant de se lancer\u00a0!<\/p>\n<p>L\u2019objectif de ce Kit p\u00e9dagogiques sous forme de vid\u00e9o de 15min est d\u2019expliquer la d\u00e9marche (d\u00e9clinaison de la d\u00e9marche en 5 \u00e9tapes cl\u00e9s) puis d\u2019expliciter et de montrer les diff\u00e9rentes mesures\/estimations possibles du d\u00e9bit en r\u00e9seaux d\u2019assainissement . Pour permettre aux gestionnaires de faire un choix \u00e9clair\u00e9 sur la m\u00e9thode de mesure ou d\u2019estimation qu\u2019ils choisiront.<\/p>\n","protected":false},"author":16,"featured_media":8646,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"footnotes":""},"categories":[24,38,577,26,29,28],"tags":[279,867,1919,998,1918,1594],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.13 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Instrumentation des d\u00e9versoirs d&#039;orage | Kit p\u00e9dagogique - \u00c9l\u00e9ments cl\u00e9s | Graie<\/title>\n<meta name=\"description\" content=\"La vid\u00e9o du kit p\u00e9dagogique sur les d\u00e9versoirs d&#039;orage est d\u00e8s maintenant disponible sur la cha\u00eene youtube du Graie !\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/asso.graie.org\/portail\/kit-pedagogique-deversoirs-d-orage\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Instrumentation des d\u00e9versoirs d&#039;orage | Kit p\u00e9dagogique - \u00c9l\u00e9ments cl\u00e9s | Graie\" \/>\n<meta property=\"og:description\" content=\"La vid\u00e9o du kit p\u00e9dagogique sur les d\u00e9versoirs d&#039;orage est d\u00e8s maintenant disponible sur la cha\u00eene youtube du Graie !\" \/>\n<meta property=\"og:url\" content=\"https:\/\/asso.graie.org\/portail\/kit-pedagogique-deversoirs-d-orage\/\" \/>\n<meta property=\"og:site_name\" content=\"Graie\" \/>\n<meta property=\"article:published_time\" content=\"2023-09-08T15:02:35+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-09-23T12:16:17+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/asso.graie.org\/portail\/wp-content\/uploads\/2017\/06\/ObsAutosurv_1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"500\" \/>\n\t<meta property=\"og:image:height\" content=\"375\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Maureen Carpentier\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@asso_graie\" \/>\n<meta name=\"twitter:site\" content=\"@asso_graie\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Maureen Carpentier\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/asso.graie.org\/portail\/kit-pedagogique-deversoirs-d-orage\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/asso.graie.org\/portail\/kit-pedagogique-deversoirs-d-orage\/\"},\"author\":{\"name\":\"Maureen Carpentier\",\"@id\":\"https:\/\/asso.graie.org\/portail\/#\/schema\/person\/486e14d091ff09d12f2b31bad560eb4f\"},\"headline\":\"Instrumentation des d\u00e9versoirs d&rsquo;orage | Kit p\u00e9dagogique &#8211; 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