{"id":4108,"date":"2025-07-14T10:33:07","date_gmt":"2025-07-14T08:33:07","guid":{"rendered":"https:\/\/ingmark.com\/corporate\/fr\/?p=4108"},"modified":"2025-07-14T10:40:10","modified_gmt":"2025-07-14T08:40:10","slug":"nettoyage-chimique-preventif","status":"publish","type":"post","link":"https:\/\/ingmark.com\/corporate\/en\/nettoyage-chimique-preventif\/","title":{"rendered":"PREVENTIVE CHEMICAL CLEANING"},"content":{"rendered":"<p>GDES nuclear services carry out the preventive chemical cleaning operation in the PWR steam generators.<\/p>\n<p>Aim of this project was to formulate and develop a chemical cleaning procedure that significantly reduces the obstruction level generated by the presence of magnetite in the PWR steam generators.<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li>Qualification: 2010 &#8211; 2013<\/li>\n<li>First intervention: CNPE Dampierre 1 (2013)<\/li>\n<li>Last intervention: CNPE Dampierre 2 (2016)<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>Chemical cleaning procedure developed by GDES. IT is intended to dissolve at least 200 kg of deposits by steam generator with the objective of 500 kg and with a maximum corrosion of 100 \u03bcm over carbon steel.<\/p>\n<p>PACCO procedure is a preventive chemical cleaning process that consists of two stages:<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li>Partial magnetite deposits removal at low temperature (between 30-40\u00baC) by combination of weak organic acids and Nitrogen sparging.<\/li>\n<li>Elimination of metallic copper (initially present in the deposits or resulting from copper-plating phenomenon occurred during the acid phase).<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter wp-image-4002 size-large\" src=\"https:\/\/ingmark.com\/corporate\/wp-content\/uploads\/sites\/3\/2025\/07\/GDES_LimpiezaQuimica-1024x574.jpg\" alt=\"GDES_Servicios_nucleares_limpiezas qu\u00edmicas\" width=\"1024\" height=\"574\" srcset=\"https:\/\/ingmark.com\/corporate\/wp-content\/uploads\/sites\/3\/2025\/07\/GDES_LimpiezaQuimica-1024x574.jpg 1024w, https:\/\/ingmark.com\/corporate\/wp-content\/uploads\/sites\/3\/2025\/07\/GDES_LimpiezaQuimica-300x168.jpg 300w, https:\/\/ingmark.com\/corporate\/wp-content\/uploads\/sites\/3\/2025\/07\/GDES_LimpiezaQuimica-768x431.jpg 768w, https:\/\/ingmark.com\/corporate\/wp-content\/uploads\/sites\/3\/2025\/07\/GDES_LimpiezaQuimica-1536x861.jpg 1536w, https:\/\/ingmark.com\/corporate\/wp-content\/uploads\/sites\/3\/2025\/07\/GDES_LimpiezaQuimica-2048x1149.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>GDES nuclear services carry out the preventive chemical cleaning operation in the PWR steam generators. Aim of this project was to formulate and develop a chemical cleaning procedure that significantly reduces the obstruction level generated by the presence of magnetite in the PWR steam generators. &nbsp; Qualification: 2010 &#8211; 2013 First intervention: CNPE Dampierre 1 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":4112,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[53,55,1],"tags":[],"class_list":["post-4108","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-proyectos-general","category-proyectos-servicios-nucleares","category-sin-categoria"],"_links":{"self":[{"href":"https:\/\/ingmark.com\/corporate\/en\/wp-json\/wp\/v2\/posts\/4108","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ingmark.com\/corporate\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ingmark.com\/corporate\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ingmark.com\/corporate\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/ingmark.com\/corporate\/en\/wp-json\/wp\/v2\/comments?post=4108"}],"version-history":[{"count":4,"href":"https:\/\/ingmark.com\/corporate\/en\/wp-json\/wp\/v2\/posts\/4108\/revisions"}],"predecessor-version":[{"id":4113,"href":"https:\/\/ingmark.com\/corporate\/en\/wp-json\/wp\/v2\/posts\/4108\/revisions\/4113"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ingmark.com\/corporate\/en\/wp-json\/wp\/v2\/media\/4112"}],"wp:attachment":[{"href":"https:\/\/ingmark.com\/corporate\/en\/wp-json\/wp\/v2\/media?parent=4108"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ingmark.com\/corporate\/en\/wp-json\/wp\/v2\/categories?post=4108"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ingmark.com\/corporate\/en\/wp-json\/wp\/v2\/tags?post=4108"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}