{"id":34183,"date":"2024-06-17T08:00:29","date_gmt":"2024-06-17T06:00:29","guid":{"rendered":"https:\/\/www.asparagusworld.com\/?post_type=news&#038;p=34183"},"modified":"2025-07-08T09:28:11","modified_gmt":"2025-07-08T09:28:11","slug":"ferruginous-water-and-drip-irrigation","status":"publish","type":"news","link":"https:\/\/befve.com\/es\/news\/ferruginous-water-and-drip-irrigation\/","title":{"rendered":"Eau ferrugineuse et irrigation goutte \u00e0 goutte des asperges"},"content":{"rendered":"\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"field_LQ24868017C\">Le fer est dissous dans l\u2019eau sous forme d\u2019oxyde ferreux et se transforme en oxyde ferrique lors du pompage. Cet oxyde se retrouve en suspension dans l\u2019eau sous forme de particules de 0,5 micron et plus, dont l\u2019accumulation finit par obstruer les goutteurs.<\/p>\n\n\n\n<h3 class=\"wp-block-heading field_LQ25227660C\">Lorsque les teneurs en oxyde ferreux deviennent trop \u00e9lev\u00e9es<\/h3>\n\n\n\n<p class=\"field_LQ24868017C\">Les bact\u00e9ries du fer se d\u00e9veloppent en milieu ana\u00e9robie. Au contact de l\u2019oxyg\u00e8ne, l\u2019oxydation du fer et la mort des bact\u00e9ries provoquent l\u2019apparition d\u2019une masse g\u00e9latineuse orang\u00e9e susceptible de boucher les goutteurs. Cette contamination des eaux souterraines riches en fer est difficile \u00e0 anticiper avec pr\u00e9cision. Toutefois, lorsque la concentration en fer (sous forme d\u2019oxyde ferreux) d\u00e9passe 1,5 ppm (1,5 g\/l), il devient n\u00e9cessaire d\u2019installer une station de d\u00e9ferrisation.<\/p>\n\n\n\n<h3 class=\"wp-block-heading field_LQ25227660C\">Filtres \u00e0 sable<\/h3>\n\n\n\n<p class=\"field_LQ24868017C\">Diff\u00e9rentes m\u00e9thodes de filtration sur sable peuvent \u00eatre mises en \u0153uvre. La plus efficace consiste \u00e0 injecter de l\u2019air dans une tour d\u2019oxydation, puis \u00e0 filtrer les particules d\u2019oxyde ferrique \u00e0 l\u2019aide d\u2019un tamis, de filtres \u00e0 disques ou, de pr\u00e9f\u00e9rence, de filtres \u00e0 sable avec contre-lavage automatique. Ces derniers sont recommand\u00e9s pour les installations de goutte-\u00e0-goutte p\u00e9rennes. Il faut toutefois noter que leur utilisation entra\u00eene une \u00e9l\u00e9vation notable du pH de l\u2019eau, un param\u00e8tre \u00e0 prendre en compte dans les pratiques de ferti-irrigation. Le recours \u00e0 des cascades successives et \u00e0 une d\u00e9cantation dans un bassin avant pompage et filtration peut \u00e9galement \u00eatre envisag\u00e9. L\u2019injection de soude caustique (solution aqueuse d\u2019hydroxyde de sodium) est une autre possibilit\u00e9. En r\u00e9sum\u00e9, en pr\u00e9sence de fer, le fonctionnement du goutte-\u00e0-goutte exige une vigilance accrue et des \u00e9quipements performants afin d\u2019assurer l\u2019efficacit\u00e9 et la durabilit\u00e9 de l\u2019installation.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>The presence of iron in irrigation water is a major problem for the use of drip feed irrigation systems. Oxidation and then filtration of ferric oxide particles is the most effective solution.<\/p>\n","protected":false},"featured_media":36702,"template":"","meta":{"_acf_changed":false},"news_categories":[53],"class_list":["post-34183","news","type-news","status-publish","has-post-thumbnail","hentry","news_categories-production"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Eau ferrugineuse et irrigation goutte \u00e0 goutte des asperges - Befve &amp; Co<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/befve.com\/es\/news\/ferruginous-water-and-drip-irrigation\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Eau ferrugineuse et irrigation goutte \u00e0 goutte des asperges - Befve &amp; Co\" \/>\n<meta property=\"og:description\" content=\"The presence of iron in irrigation water is a major problem for the use of drip feed irrigation systems. 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