{"id":357,"date":"2016-11-08T11:54:32","date_gmt":"2016-11-08T10:54:32","guid":{"rendered":"http:\/\/www.serresvaldeloire.com\/actus-conseils\/?p=357"},"modified":"2026-09-14T09:44:54","modified_gmt":"2026-09-14T07:44:54","slug":"gestion-potentiel-hydrogene","status":"publish","type":"post","link":"https:\/\/www.serresvaldeloire.com\/actus-conseils\/irrigation\/traitement-de-leau\/gestion-potentiel-hydrogene\/","title":{"rendered":"Techniques de gestion du pH"},"content":{"rendered":"<p>Si vous avez lu notre <a href=\"https:\/\/www.serresvaldeloire.com\/actus-conseils\/irrigation\/traitement-de-leau\/regulation-ph-eau-reseau-pression\/\" target=\"_blank\" rel=\"noopener\"><strong>r\u00e9cent article sur le pH<\/strong><\/a>, vous savez comment d\u00e9terminer le potentiel hydrog\u00e8ne et vous avez d\u00e9j\u00e0 des informations avanc\u00e9es sur la r\u00e9gulation et le contr\u00f4le de celui-ci.<\/p>\n<p><strong>Pour abaisser ou relever une valeur de pH<\/strong>, un calcul permet de d\u00e9finir une quantit\u00e9 minimum ou maximum de produit \u00e0 injecter et d&rsquo;en d\u00e9duire le mod\u00e8le et la capacit\u00e9 de la pompe \u00e0 mettre en oeuvre.<\/p>\n<h2>R\u00e9duction&nbsp;d&rsquo;un point de pH \u00e0 l&rsquo;acide nitrique<\/h2>\n<p>Un exemple : nous diminuons ici le pH de l&rsquo;eau d&rsquo;un point gr\u00e2ce \u00e0 l&rsquo;utilisation d&rsquo;une solution nitrique concentr\u00e9e \u00e0 1%. Le d\u00e9bit d&rsquo;eau \u00e0 traiter est de 8m3 \/ heure. La courbe d&rsquo;acide \u00e0 5 % (jaune) co\u00efncide avec la courbe maxi d&rsquo;acide \u00e0 10%.<\/p>\n<div class=\"col-sm-6 col-xs-12\">\n<p>D&rsquo;apr\u00e8s les courbes ci-dessous, en suivant la courbe mini et maxi nous pouvons d\u00e9terminer qu&rsquo;il faudra :<\/p>\n<ul>\n<li>au minimum 25l \/ h pour abaisser le pH de 1 pour un volume d&rsquo;eau de 8m3 \/ h<\/li>\n<li>au maximum 50l \/ h pour abaisser le pH de 1 pour un volume d&rsquo;eau de 8m3 \/ h<\/li>\n<\/ul>\n<p><strong>La pompe doseuse s\u00e9lectionn\u00e9e<\/strong>&nbsp;aura donc un d\u00e9bit maximum de 50 l \/ heure.<\/p>\n<p>Avec l&rsquo;utilisation d&rsquo;une solution nitrique \u00e0 10% la quantit\u00e9 mini serait alors de 2.5 l \/ h et la quantit\u00e9 maxi de 4.5 l \/ heure.<\/p>\n<\/div>\n<div class=\"col-sm-6 col-xs-12\">\n<p style=\"text-align: center;\">\n<\/div>\n<h3>A l&rsquo;acide phosphorique ou sulfurique<\/h3>\n<p>M\u00eame exemple ici, mais avec l&rsquo;utilisation d&rsquo;acide phosphorique ou sulfurique :<\/p>\n<div id='gallery-1' class='gallery galleryid-357 gallery-columns-2 gallery-size-medium'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.serresvaldeloire.com\/actus-conseils\/wp-content\/uploads\/2016\/11\/courbes-dacide-phosphorique-necessaire-pour-descendre-le-ph-de-1-point.jpg'><img fetchpriority=\"high\" decoding=\"async\" width=\"300\" height=\"271\" src=\"https:\/\/www.serresvaldeloire.com\/actus-conseils\/wp-content\/uploads\/2016\/11\/courbes-dacide-phosphorique-necessaire-pour-descendre-le-ph-de-1-point-300x271.jpg\" class=\"attachment-medium size-medium\" alt=\"\" srcset=\"https:\/\/www.serresvaldeloire.com\/actus-conseils\/wp-content\/uploads\/2016\/11\/courbes-dacide-phosphorique-necessaire-pour-descendre-le-ph-de-1-point-300x271.jpg 300w, https:\/\/www.serresvaldeloire.com\/actus-conseils\/wp-content\/uploads\/2016\/11\/courbes-dacide-phosphorique-necessaire-pour-descendre-le-ph-de-1-point-768x693.jpg 768w, https:\/\/www.serresvaldeloire.com\/actus-conseils\/wp-content\/uploads\/2016\/11\/courbes-dacide-phosphorique-necessaire-pour-descendre-le-ph-de-1-point.jpg 943w\" sizes=\"(max-width: 300px) 100vw, 300px\" style=\"width:100%;height:90.24%;max-width:943px;\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.serresvaldeloire.com\/actus-conseils\/wp-content\/uploads\/2016\/11\/courbes-dacide-sulfurique-necessaire-pour-descendre-le-ph-de-1-point.jpg'><img decoding=\"async\" width=\"300\" height=\"270\" src=\"https:\/\/www.serresvaldeloire.com\/actus-conseils\/wp-content\/uploads\/2016\/11\/courbes-dacide-sulfurique-necessaire-pour-descendre-le-ph-de-1-point-300x270.jpg\" class=\"attachment-medium size-medium\" alt=\"\" srcset=\"https:\/\/www.serresvaldeloire.com\/actus-conseils\/wp-content\/uploads\/2016\/11\/courbes-dacide-sulfurique-necessaire-pour-descendre-le-ph-de-1-point-300x270.jpg 300w, https:\/\/www.serresvaldeloire.com\/actus-conseils\/wp-content\/uploads\/2016\/11\/courbes-dacide-sulfurique-necessaire-pour-descendre-le-ph-de-1-point-768x692.jpg 768w, https:\/\/www.serresvaldeloire.com\/actus-conseils\/wp-content\/uploads\/2016\/11\/courbes-dacide-sulfurique-necessaire-pour-descendre-le-ph-de-1-point.jpg 943w\" sizes=\"(max-width: 300px) 100vw, 300px\" style=\"width:100%;height:90.14%;max-width:943px;\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\n<p>Prot\u00e9gez-vous (yeux, mains, appareil respiratoire&#8230;) en utilisant ces produits, qui ne sont pas anodins.<\/p>\n<h2>Conclusion<\/h2>\n<p><strong>Le contr\u00f4le et la r\u00e9gulation du pH est une discipline pr\u00e9cise<\/strong>, qui ne souffre pas d&rsquo;approximations. Si vous avez besoin d&rsquo;aide, nous sommes \u00e0 votre service pour intervenir en experts sur vos chantiers.<\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.serresvaldeloire.com\/content\/nous-contacter-svl.html\"><button><strong>Contactez-nous !<\/strong><\/button><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Comment contr\u00f4ler le pH (potentiel hydrog\u00e8ne) d&rsquo;une solution ? Nous vous donnons des \u00e9l\u00e9ments professionnels ici-m\u00eame.<\/p>\n","protected":false},"author":2,"featured_media":390,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"class_list":["post-357","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-traitement-de-leau","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Gestion du pH sur des syst\u00e8mes d&#039;irrigation professionnels<\/title>\n<meta name=\"description\" content=\"Pour abaisser, relever une valeur et mettre en oeuvre une bonne gestion du pH, un calcul permet de d\u00e9finir une quantit\u00e9 de produit \u00e0 injecter.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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