{"id":44872,"date":"2026-08-04T09:20:30","date_gmt":"2026-08-04T07:20:30","guid":{"rendered":"https:\/\/www.odyssee-environnement.fr\/?p=44872"},"modified":"2026-08-04T15:10:55","modified_gmt":"2026-08-04T13:10:55","slug":"cleaning-corrosionprotection-for-glycol-systems","status":"publish","type":"post","link":"https:\/\/www.odyssee-environnement.fr\/en\/cleaning-corrosionprotection-for-glycol-systems\/","title":{"rendered":"Cleaning &amp; Corrosionprotection for glycol systems"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Technical Insight &#8211; Glycol Systems Under Pressure<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Closed-loop glycol systems, commonly used for HVAC and industrial cooling, face two critical challenges:<strong> fouling<\/strong> and <strong>corrosion<\/strong>. Over time, glycol degrades into organic acids, lowering pH and accelerating metal attack. Simultaneously, biofilm and particulate accumulation impair heat transfer, leading to performance drift and energy inefficiency. Without proactive chemical cleaning and corrosion protection, these systems become costly liabilities\u2014both in terms of maintenance and asset longevity.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">As water treatment professionals, it is our responsibility to ensure long-term system integrity through rigorous monitoring, targeted cleaning procedures, and tailored corrosion inhibitor programs.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Client Case &#8211; Major North American Wastewater Facility<\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\">A major wastewater treatment plant, one of the largest in North America, operates multiple glycol heating loops integrated across both facility buildings and critical process zones.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"495\" src=\"https:\/\/www.odyssee-environnement.fr\/wp-content\/files\/2026\/08\/Nouvelle-note-1024x495.jpeg\" alt=\"\" class=\"wp-image-44873\" title=\"\" srcset=\"https:\/\/www.odyssee-environnement.fr\/wp-content\/files\/2026\/08\/Nouvelle-note-1024x495.jpeg 1024w, https:\/\/www.odyssee-environnement.fr\/wp-content\/files\/2026\/08\/Nouvelle-note-300x145.jpeg 300w, https:\/\/www.odyssee-environnement.fr\/wp-content\/files\/2026\/08\/Nouvelle-note-768x371.jpeg 768w, https:\/\/www.odyssee-environnement.fr\/wp-content\/files\/2026\/08\/Nouvelle-note.jpeg 1140w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption><\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">System<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">BOILER HOUSE : 5 boilers, one of which is always down for maintenance.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Process Heating (Heating up sludges)<\/li>\n\n\n\n<li>Estimated System Volume: 80\u2019000 gal<\/li>\n\n\n\n<li>Contains: City Water + Glycol<\/li>\n\n\n\n<li>Equipment: 1 Filter Housing<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"391\" src=\"https:\/\/www.odyssee-environnement.fr\/wp-content\/files\/2026\/08\/Nouvelle-note-1-1024x391.jpeg\" alt=\"\" class=\"wp-image-44874\" title=\"\" srcset=\"https:\/\/www.odyssee-environnement.fr\/wp-content\/files\/2026\/08\/Nouvelle-note-1-1024x391.jpeg 1024w, https:\/\/www.odyssee-environnement.fr\/wp-content\/files\/2026\/08\/Nouvelle-note-1-300x115.jpeg 300w, https:\/\/www.odyssee-environnement.fr\/wp-content\/files\/2026\/08\/Nouvelle-note-1-768x293.jpeg 768w, https:\/\/www.odyssee-environnement.fr\/wp-content\/files\/2026\/08\/Nouvelle-note-1.jpeg 1246w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Solution<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Treatment Strategy:<\/strong><br>The corrosion control program implemented relied on a formulation fully compatible with glycols. The dual-action mechanism includes:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Filming amines <\/strong>to create a protective molecular layer on metallic surfaces.<\/li>\n\n\n\n<li><strong>Alkalizinf amines<\/strong> to stabilize pH and buffer glycol degradation byproducts.<\/li>\n\n\n\n<li><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">This approach rapidly became a standard treatment model for glycol-based systems in North-America.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Implementation Notes:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Progressive injection<\/strong> was initiated to promote controlled cleaning and avoid mobilizing excessive deposits too quickly.<\/li>\n\n\n\n<li><strong>Weekly filter replacements<\/strong> were scheduled to capture suspended solids and corrosion products released during the initial film formation phase.<\/li>\n\n\n\n<li><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Technical Outcome:<\/strong><br>The strategy enabled both system cleaning and long-term corrosion protection without shutdown, while maintaining stable pH and minimal turbidity\u2014a robust operational benchmark for similar facilities.<\/p>\n\n\n\n<div class=\"lien-odyssee align wp-block-odyssee-lien-odyssee\">\n    <a href=\"https:\/\/mcusercontent.com\/ca8442e2f7066e9c765bbb9e2\/files\/827f4bba-3fe8-208f-0978-05f4b50457d6\/En_CL_ODYTHERM_FS_510P_Product_Bulletin_24.08_1.pdf\" target=\"_blank\" rel=\"noopener\">\n        Download the ODYTHERM FS 510P Product Bulletin        <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"14.269\" height=\"10.33\" viewBox=\"0 0 14.269 10.33\">\n            <path id=\"Path_13247\" data-name=\"Path 13247\" d=\"M14.138,4.827,9.71.152a.5.5,0,0,0-.7-.019.511.511,0,0,0-.019.7l3.636,3.844H.492a.492.492,0,0,0,0,.984H12.631L8.995,9.5a.513.513,0,0,0,.019.7.5.5,0,0,0,.7-.019L14.138,5.5A.5.5,0,0,0,14.138,4.827Z\" transform=\"translate(0 0)\" fill=\"#fff\"\/>\n        <\/svg>\n    <\/a>\n<\/div>\n\n\n\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"370\" src=\"https:\/\/www.odyssee-environnement.fr\/wp-content\/files\/2026\/08\/Nouvelle-note-2-1024x370.jpeg\" alt=\"\" class=\"wp-image-44875\" title=\"\" srcset=\"https:\/\/www.odyssee-environnement.fr\/wp-content\/files\/2026\/08\/Nouvelle-note-2-1024x370.jpeg 1024w, https:\/\/www.odyssee-environnement.fr\/wp-content\/files\/2026\/08\/Nouvelle-note-2-300x108.jpeg 300w, https:\/\/www.odyssee-environnement.fr\/wp-content\/files\/2026\/08\/Nouvelle-note-2-768x277.jpeg 768w, https:\/\/www.odyssee-environnement.fr\/wp-content\/files\/2026\/08\/Nouvelle-note-2.jpeg 1429w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption><\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">After <strong>4 weeks of treatment<\/strong>, the filters showed no visible fouling\u2014indicating successful deposit removal and stabilization of the system. <strong>Dissolved iron levels<\/strong> were consistently under control, confirming the effectiveness of the corrosion inhibition and cleaning program.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At this stage, <strong>Boiler #3<\/strong>\u2014which had remained offline\u2014was brought back into operation. This reactivation triggered a <strong>new cleaning phase<\/strong> lasting several weeks, during which similar monitoring protocols (filter changes, iron tracking) were maintained to ensure uniform protection and system-wide cleanliness<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"344\" src=\"https:\/\/www.odyssee-environnement.fr\/wp-content\/files\/2026\/08\/Nouvelle-note-3-1024x344.jpeg\" alt=\"\" class=\"wp-image-44876\" title=\"\" srcset=\"https:\/\/www.odyssee-environnement.fr\/wp-content\/files\/2026\/08\/Nouvelle-note-3-1024x344.jpeg 1024w, https:\/\/www.odyssee-environnement.fr\/wp-content\/files\/2026\/08\/Nouvelle-note-3-300x101.jpeg 300w, https:\/\/www.odyssee-environnement.fr\/wp-content\/files\/2026\/08\/Nouvelle-note-3-768x258.jpeg 768w, https:\/\/www.odyssee-environnement.fr\/wp-content\/files\/2026\/08\/Nouvelle-note-3.jpeg 1350w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption><\/figcaption><\/figure>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Visual Confirmation of System Cleaning<\/strong><br>The cleaning process significantly improved water clarity.<br>The image below illustrates the impact of the treatment: <strong>on the left<\/strong>, the initial water appearance at the start of the film-forming amine (FFA) injection; <strong>on the right<\/strong>, the clear water condition observed at the end of the cleaning phase.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This visual transition confirms both the <strong>efficacy of deposit dispersion and the restoration of hydraulic cleanliness<\/strong> within the glycol loop.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"472\" height=\"354\" src=\"https:\/\/www.odyssee-environnement.fr\/wp-content\/files\/2026\/08\/Nouvelle-note-4.jpeg\" alt=\"\" class=\"wp-image-44877\" title=\"\" srcset=\"https:\/\/www.odyssee-environnement.fr\/wp-content\/files\/2026\/08\/Nouvelle-note-4.jpeg 472w, https:\/\/www.odyssee-environnement.fr\/wp-content\/files\/2026\/08\/Nouvelle-note-4-300x225.jpeg 300w\" sizes=\"auto, (max-width: 472px) 100vw, 472px\" \/><figcaption><\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"video-odyssee\">\n       \n<\/div>\n\n\n<div class=\"video-odyssee\">\n       \n<\/div>\n\n\n<div class=\"video-odyssee\">\n       \n<\/div>\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Technical Insight &#8211; Glycol Systems Under Pressure Closed-loop glycol systems, commonly used for HVAC and industrial cooling, face two critical challenges: fouling and corrosion. Over time, glycol degrades into organic [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":44927,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[223],"tags":[],"class_list":["post-44872","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-newsletter"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.odyssee-environnement.fr\/en\/wp-json\/wp\/v2\/posts\/44872","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.odyssee-environnement.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.odyssee-environnement.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.odyssee-environnement.fr\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.odyssee-environnement.fr\/en\/wp-json\/wp\/v2\/comments?post=44872"}],"version-history":[{"count":1,"href":"https:\/\/www.odyssee-environnement.fr\/en\/wp-json\/wp\/v2\/posts\/44872\/revisions"}],"predecessor-version":[{"id":44878,"href":"https:\/\/www.odyssee-environnement.fr\/en\/wp-json\/wp\/v2\/posts\/44872\/revisions\/44878"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.odyssee-environnement.fr\/en\/wp-json\/wp\/v2\/media\/44927"}],"wp:attachment":[{"href":"https:\/\/www.odyssee-environnement.fr\/en\/wp-json\/wp\/v2\/media?parent=44872"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.odyssee-environnement.fr\/en\/wp-json\/wp\/v2\/categories?post=44872"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.odyssee-environnement.fr\/en\/wp-json\/wp\/v2\/tags?post=44872"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}