{"id":11414,"date":"2025-11-26T08:08:14","date_gmt":"2025-11-26T07:08:14","guid":{"rendered":"https:\/\/dankalk.dk\/ferrous-sulfate-and-iron-powder\/"},"modified":"2026-05-28T08:59:51","modified_gmt":"2026-05-28T06:59:51","slug":"ferrous-sulfate-and-iron-powder","status":"publish","type":"page","link":"https:\/\/dankalk.dk\/en\/ferrous-sulfate-and-iron-powder\/","title":{"rendered":"Ferrous sulfate and iron powder"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"11414\" class=\"elementor elementor-11414 elementor-10442\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-92d6099 white e-flex e-con-boxed e-con e-parent\" data-id=\"92d6099\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;slideshow&quot;,&quot;background_slideshow_gallery&quot;:[{&quot;id&quot;:10737,&quot;url&quot;:&quot;https:\\\/\\\/dankalk.dk\\\/wp-content\\\/uploads\\\/2026\\\/02\\\/Jernsulfat-scaled.jpg&quot;},{&quot;id&quot;:10738,&quot;url&quot;:&quot;https:\\\/\\\/dankalk.dk\\\/wp-content\\\/uploads\\\/2026\\\/02\\\/Grunsalzverladung2-1-scaled.jpg&quot;},{&quot;id&quot;:10739,&quot;url&quot;:&quot;https:\\\/\\\/dankalk.dk\\\/wp-content\\\/uploads\\\/2026\\\/02\\\/fest-02.jpg&quot;}],&quot;background_slideshow_ken_burns&quot;:&quot;yes&quot;,&quot;background_slideshow_loop&quot;:&quot;yes&quot;,&quot;background_slideshow_slide_duration&quot;:5000,&quot;background_slideshow_slide_transition&quot;:&quot;fade&quot;,&quot;background_slideshow_transition_duration&quot;:500,&quot;background_slideshow_ken_burns_zoom_direction&quot;:&quot;in&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0393512 e-flex e-con-boxed e-con e-parent\" data-id=\"0393512\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-64eed2c e-con-full e-flex e-con e-child\" data-id=\"64eed2c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e15aeb0 elementor-widget elementor-widget-text-editor\" data-id=\"e15aeb0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h1 aria-level=\"1\"><b><span data-contrast=\"none\">Iron sulphate and iron powder \u2013 effective solutions for industry and the environment<\/span><\/b><span data-ccp-props=\"{\"134245418\":true,\"134245529\":true,\"335559738\":322,\"335559739\":322}\"> <\/span><\/h1><h2 aria-level=\"3\"><b><span data-contrast=\"none\">Iron products for cleaning and process optimization<\/span><\/b><span data-ccp-props=\"{\"134245418\":true,\"134245529\":true,\"335559738\":281,\"335559739\":281}\"> <\/span><\/h2><p><span data-contrast=\"auto\">How can iron sulfate and iron powder improve purification and process stability \u2013 and why do Danish plants choose to collaborate with Dankalk?<\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><\/p><p><span data-contrast=\"auto\">At<\/span> <b><span data-contrast=\"auto\">Dankalk<\/span><\/b><span data-contrast=\"auto\">  We supply iron-based chemical products to industrial companies, biogas plants and wastewater treatment plants throughout Denmark. The products are used for phosphorus precipitation, hydrogen sulfide control, metal precipitation and process optimization, where operational reliability and documented effect are crucial. <\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><\/p><p><span data-contrast=\"auto\">We combine high-quality products with technical advice, so you achieve an efficient, stable and economical solution tailored to your plant.<\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><span data-ccp-props=\"{}\"> <\/span><\/p><h2 aria-level=\"1\"><b><span data-contrast=\"none\">Iron powder<\/span><\/b><span data-ccp-props=\"{\"134245418\":true,\"134245529\":true,\"335559738\":322,\"335559739\":322}\"> <\/span><\/h2><p aria-level=\"2\"><b><span data-contrast=\"none\">Flexible solution for hydrogen sulfide and metal bonding<\/span><\/b><span data-ccp-props=\"{\"134245418\":true,\"134245529\":true,\"335559738\":299,\"335559739\":299}\"> <\/span><\/p><p><b><span data-contrast=\"auto\">Iron powder<\/span><\/b> <span data-contrast=\"auto\">is a versatile iron product used in a number of technical and biological processes \u2013 including biogas production, water treatment and industrial cleaning.<\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><\/p><p><span data-contrast=\"auto\">In biogas plants, iron powder acts as an effective hydrogen sulfide binder, converting H\u2082S into stable iron compounds. Iron powder can also be used for phosphorus binding and precipitation of metals in process and wastewater. <\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><\/p><p aria-level=\"3\"><b><span data-contrast=\"none\">Benefits of iron powder<\/span><\/b><span data-ccp-props=\"{\"134245418\":true,\"134245529\":true,\"335559738\":281,\"335559739\":281}\"> <\/span><\/p><ul><li><span data-contrast=\"auto\">Reduces hydrogen sulfide and odors<\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><\/li><li><span data-contrast=\"auto\">Protects motors, filters and process equipment<\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><\/li><li><span data-contrast=\"auto\">Can be used for metal and phosphorus precipitation<\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><\/li><li><span data-contrast=\"auto\">High purity and uniform particle size<\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><\/li><\/ul><p><span data-contrast=\"auto\">Dankalk supplies iron powder in several varieties and helps you choose the type that best suits your purpose \u2013 whether it is purification, filtration or process optimization.<\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-32f5cf6 cta e-transform elementor-widget elementor-widget-button\" data-id=\"32f5cf6\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_transform_scale_effect&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;_transform_scale_effect_laptop&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;_transform_scale_effect_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;_transform_scale_effect_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/dankalk.dk\/en\/contact\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Contact us today<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-440ef52 e-con-full e-flex e-con e-child\" data-id=\"440ef52\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-7500d80 e-con-full dark e-flex e-con e-child\" data-id=\"7500d80\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-ebd323b e-con-full e-flex e-con e-child\" data-id=\"ebd323b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-6fad27e e-con-full e-flex e-con e-child\" data-id=\"6fad27e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-301c7b6 elementor-widget elementor-widget-text-editor\" data-id=\"301c7b6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3>Get in touch with us today!<\/h3><p>We are ready to handle your task. Contact us by phone, email or by filling out the form. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9ae9c58 e-con-full e-flex e-con e-child\" data-id=\"9ae9c58\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0daa774 elementor-icon-list--layout-inline elementor-align-start elementor-mobile-align-start custom-link-color elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"0daa774\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items elementor-inline-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item elementor-inline-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-phone-alt\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M497.39 361.8l-112-48a24 24 0 0 0-28 6.9l-49.6 60.6A370.66 370.66 0 0 1 130.6 204.11l60.6-49.6a23.94 23.94 0 0 0 6.9-28l-48-112A24.16 24.16 0 0 0 122.6.61l-104 24A24 24 0 0 0 0 48c0 256.5 207.9 464 464 464a24 24 0 0 0 23.4-18.6l24-104a24.29 24.29 0 0 0-14.01-27.6z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\"><a href=\"tel:33 68 74 00\" aria-label=\"Telefon nummer\">33 68 74 00<\/a><\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item elementor-inline-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-envelope\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\"><a href=\"mailto:dankalk@dankalk.dk\" aria-label=\"Email adresse\">dankalk@dankalk.dk<\/a><\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-91b2c40 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"91b2c40\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cd765ea elementor-widget elementor-widget-wp-widget-forminator_widget\" data-id=\"cd765ea\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"wp-widget-forminator_widget.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<form id=\"forminator-module-66\" class=\"forminator-custom-form forminator-custom-form-66\" method=\"post\" data-forminator-render=\"0\" data-uid=\"6a18759fd910c\"><div role=\"alert\" aria-live=\"polite\" class=\"forminator-response-message forminator-error\" aria-hidden=\"true\"><\/div><\/form>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-8296174 light e-flex e-con-boxed e-con e-parent\" data-id=\"8296174\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-cc86a19 e-con-full e-flex e-con e-child\" data-id=\"cc86a19\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-b7a38ff e-con-full e-flex e-con e-child\" data-id=\"b7a38ff\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c60e857 elementor-widget elementor-widget-text-editor\" data-id=\"c60e857\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2 aria-level=\"1\"><b><span data-contrast=\"none\">Iron sulfate<\/span><\/b><span data-ccp-props=\"{\"134245418\":true,\"134245529\":true,\"335559738\":322,\"335559739\":322}\"> <\/span><\/h2><p aria-level=\"2\"><b><span data-contrast=\"none\">Phosphorus precipitation and environmental control without chloride load<\/span><\/b><span data-ccp-props=\"{\"134245418\":true,\"134245529\":true,\"335559738\":299,\"335559739\":299}\"> <\/span><\/p><p><b><span data-contrast=\"auto\">Iron sulfate<\/span><\/b><span data-contrast=\"auto\">  is a widely used coagulant in Danish wastewater treatment and is used for the effective precipitation of phosphorus and other nutrients. When added, iron sulfate reacts with phosphorus and forms solid compounds, which are removed together with the sludge. <\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><\/p><p><span data-contrast=\"auto\">Ferrous sulfate is often used where low chloride load and stable pH are required.<\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><\/p><p aria-level=\"3\"><b><span data-contrast=\"none\">Benefits of ferrous sulfate<\/span><\/b><span data-ccp-props=\"{\"134245418\":true,\"134245529\":true,\"335559738\":281,\"335559739\":281}\"> <\/span><\/p><ul><li><span data-contrast=\"auto\">Efficient phosphorus precipitation with low residual phosphorus<\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><\/li><li><span data-contrast=\"auto\">Stable pH regulation and low corrosion risk<\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><\/li><li><span data-contrast=\"auto\">Suitable for municipal and industrial facilities<\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><\/li><li><span data-contrast=\"auto\">Good effect at high salinity<\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><\/li><li><span data-contrast=\"auto\">Can be combined with polymers for optimal floc formation<\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><\/li><\/ul><p><span data-contrast=\"auto\">Ferric sulfate is a strong alternative to ferric chloride and can be used advantageously where a more gentle chemical solution for installations and the environment is desired.<\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><\/p><p><span data-contrast=\"auto\">Dankalk advises on the correct selection and dosage based on load, temperature and process conditions.<\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8db0f1f cta elementor-mobile-align-justify elementor-widget-mobile__width-inherit elementor-tablet-align-left elementor-widget elementor-widget-button\" data-id=\"8db0f1f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/dankalk.dk\/en\/contact\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Get a quote<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b4f605f e-con-full e-flex e-con e-child\" data-id=\"b4f605f\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-550da17 e-flex e-con-boxed e-con e-parent\" data-id=\"550da17\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-5a717c2 e-con-full e-flex e-con e-child\" data-id=\"5a717c2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-845a5b1 e-con-full e-flex e-con e-child\" data-id=\"845a5b1\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-75f4825 light elementor-widget elementor-widget-n-accordion\" data-id=\"75f4825\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;n_accordion_animation_duration&quot;:{&quot;unit&quot;:&quot;ms&quot;,&quot;size&quot;:200,&quot;sizes&quot;:[]},&quot;default_state&quot;:&quot;all_collapsed&quot;,&quot;max_items_expended&quot;:&quot;one&quot;}\" data-widget_type=\"nested-accordion.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"e-n-accordion\" aria-label=\"Accordion. Open links with Enter or Space, close with Escape, and navigate with Arrow Keys\">\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1230\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"1\" tabindex=\"0\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1230\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Uses of iron products   <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><i aria-hidden=\"true\" class=\"far fa-minus\"><\/i><\/span>\n\t\t\t<span class='e-closed'><i aria-hidden=\"true\" class=\"far fa-plus\"><\/i><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1230\" class=\"elementor-element elementor-element-a9299bb e-con-full no-padding e-flex e-con e-child\" data-id=\"a9299bb\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-68055c6 elementor-widget elementor-widget-text-editor\" data-id=\"68055c6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p aria-level=\"2\"><b><span data-contrast=\"none\">Iron sulfate and iron powder in practice<\/span><\/b><span data-ccp-props=\"{\"134245418\":true,\"134245529\":true,\"335559738\":299,\"335559739\":299}\"> <\/span><\/p><p><span data-contrast=\"auto\">Iron sulfate and iron powder are often used separately \u2013 but in certain processes, a combination provides extra effect.<\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><\/p><p aria-level=\"3\"><b><span data-contrast=\"none\">Combination of ferrous sulfate and iron powder<\/span><\/b><span data-ccp-props=\"{\"134245418\":true,\"134245529\":true,\"335559738\":281,\"335559739\":281}\"> <\/span><\/p><ul><li><span data-contrast=\"auto\">Ferrous sulfate is used for chemical precipitation and pH stabilization<\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><\/li><li><span data-contrast=\"auto\">Iron powder is used for the reduction of sulfur compounds and metal precipitation<\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><\/li><li><span data-contrast=\"auto\">The combination reduces hydrogen sulfide, protects installations against corrosion and ensures cleaner emissions.<\/span><\/li><\/ul><p aria-level=\"3\"><b><span data-contrast=\"none\">Typical areas of application<\/span><\/b><span data-ccp-props=\"{\"134245418\":true,\"134245529\":true,\"335559738\":281,\"335559739\":281}\"> <\/span><\/p><ul><li><span data-contrast=\"auto\">Municipal wastewater treatment plants<\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><\/li><li><span data-contrast=\"auto\">Biogas plants and energy production<\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><\/li><li><span data-contrast=\"auto\">Industrial wastewater treatment plants<\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><\/li><li><span data-contrast=\"auto\">Flue gas and water purification systems<\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><\/li><\/ul><p><span data-contrast=\"auto\">Dankalk offers testing, dosage guidance and full-scale testing so that the solution is adapted both technically, economically and environmentally.<\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c8e8436 cta elementor-mobile-align-justify elementor-widget-mobile__width-inherit elementor-tablet-align-left elementor-widget elementor-widget-button\" data-id=\"c8e8436\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/dankalk.dk\/en\/contact\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Get a quote<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0148330 e-con-full e-flex e-con e-child\" data-id=\"0148330\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7d1f32f elementor-widget elementor-widget-text-editor\" data-id=\"7d1f32f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2 aria-level=\"2\"><b><span data-contrast=\"none\">Contact Dankalk &#8211; get advice on iron products<\/span><\/b><span data-ccp-props=\"{\"134245418\":true,\"134245529\":true,\"335559738\":299,\"335559739\":299}\"> <\/span><\/h2><p><span data-contrast=\"auto\">Do you want to optimize your system with iron sulfate or iron powder?<\/span><br\/> <span data-contrast=\"auto\">Contact<\/span> <b><span data-contrast=\"auto\">Dankalk<\/span><\/b> <span data-contrast=\"auto\">for technical advice and a non-binding offer for delivery throughout Denmark.<\/span><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><\/p><p><span data-contrast=\"auto\">\ud83d\udcde<\/span> <a href=\"phone: (+45) 33 68 74 00\"><b><span data-contrast=\"auto\">(+45) 33 68 74 00<\/span><\/b><\/a><br\/> <span data-contrast=\"auto\">\u2709\ufe0f<\/span> <a href=\"mailto:dankalk@dankalk.dk\"><b><span data-contrast=\"none\">dankalk@dankalk.dk<\/span><\/b><\/a><span data-ccp-props=\"{\"335559738\":240,\"335559739\":240}\"> <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Iron sulphate and iron powder \u2013 effective solutions for industry and the environment Iron products for cleaning and process optimization How can iron sulfate and iron powder improve purification and process stability \u2013 and why do Danish plants choose to collaborate with Dankalk? At Dankalk We supply iron-based chemical products to industrial companies, biogas plants &#8230; <a title=\"Ferrous sulfate and iron powder\" class=\"read-more\" href=\"https:\/\/dankalk.dk\/en\/ferrous-sulfate-and-iron-powder\/\" aria-label=\"Read more about Ferrous sulfate and iron powder\">Read more<\/a><\/p>\n","protected":false},"author":5,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"class_list":["post-11414","page","type-page","status-publish"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ferrous sulfate and iron powder | DANKALK K\/S<\/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:\/\/dankalk.dk\/en\/ferrous-sulfate-and-iron-powder\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ferrous sulfate and iron powder | DANKALK K\/S\" \/>\n<meta property=\"og:description\" content=\"Iron sulphate and iron powder \u2013 effective solutions for industry and the environment Iron products for cleaning and process optimization How can iron sulfate and iron powder improve purification and process stability \u2013 and why do Danish plants choose to collaborate with Dankalk? At Dankalk We supply iron-based chemical products to industrial companies, biogas plants ... Read more\" \/>\n<meta property=\"og:url\" content=\"https:\/\/dankalk.dk\/en\/ferrous-sulfate-and-iron-powder\/\" \/>\n<meta property=\"og:site_name\" content=\"DANKALK K\/S\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-28T06:59:51+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/dankalk.dk\\\/en\\\/ferrous-sulfate-and-iron-powder\\\/\",\"url\":\"https:\\\/\\\/dankalk.dk\\\/en\\\/ferrous-sulfate-and-iron-powder\\\/\",\"name\":\"Ferrous sulfate and iron powder | DANKALK K\\\/S\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/dankalk.dk\\\/en\\\/#website\"},\"datePublished\":\"2025-11-26T07:08:14+00:00\",\"dateModified\":\"2026-05-28T06:59:51+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/dankalk.dk\\\/en\\\/ferrous-sulfate-and-iron-powder\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/dankalk.dk\\\/en\\\/ferrous-sulfate-and-iron-powder\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/dankalk.dk\\\/en\\\/ferrous-sulfate-and-iron-powder\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Forside\",\"item\":\"https:\\\/\\\/dankalk.dk\\\/en\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Ferrous sulfate and iron powder\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/dankalk.dk\\\/en\\\/#website\",\"url\":\"https:\\\/\\\/dankalk.dk\\\/en\\\/\",\"name\":\"DANKALK K\\\/S\",\"description\":\"Kalk fra dansk kalkv\u00e6rk med over 100 \u00e5rs erfaring\",\"publisher\":{\"@id\":\"https:\\\/\\\/dankalk.dk\\\/en\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/dankalk.dk\\\/en\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/dankalk.dk\\\/en\\\/#organization\",\"name\":\"DANKALK K\\\/S\",\"url\":\"https:\\\/\\\/dankalk.dk\\\/en\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/dankalk.dk\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/dankalk.dk\\\/wp-content\\\/uploads\\\/2025\\\/11\\\/Dankalk_160x.png\",\"contentUrl\":\"https:\\\/\\\/dankalk.dk\\\/wp-content\\\/uploads\\\/2025\\\/11\\\/Dankalk_160x.png\",\"width\":524,\"height\":100,\"caption\":\"DANKALK K\\\/S\"},\"image\":{\"@id\":\"https:\\\/\\\/dankalk.dk\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Ferrous sulfate and iron powder | DANKALK K\/S","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/dankalk.dk\/en\/ferrous-sulfate-and-iron-powder\/","og_locale":"en_US","og_type":"article","og_title":"Ferrous sulfate and iron powder | DANKALK K\/S","og_description":"Iron sulphate and iron powder \u2013 effective solutions for industry and the environment Iron products for cleaning and process optimization How can iron sulfate and iron powder improve purification and process stability \u2013 and why do Danish plants choose to collaborate with Dankalk? At Dankalk We supply iron-based chemical products to industrial companies, biogas plants ... Read more","og_url":"https:\/\/dankalk.dk\/en\/ferrous-sulfate-and-iron-powder\/","og_site_name":"DANKALK K\/S","article_modified_time":"2026-05-28T06:59:51+00:00","twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/dankalk.dk\/en\/ferrous-sulfate-and-iron-powder\/","url":"https:\/\/dankalk.dk\/en\/ferrous-sulfate-and-iron-powder\/","name":"Ferrous sulfate and iron powder | DANKALK K\/S","isPartOf":{"@id":"https:\/\/dankalk.dk\/en\/#website"},"datePublished":"2025-11-26T07:08:14+00:00","dateModified":"2026-05-28T06:59:51+00:00","breadcrumb":{"@id":"https:\/\/dankalk.dk\/en\/ferrous-sulfate-and-iron-powder\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/dankalk.dk\/en\/ferrous-sulfate-and-iron-powder\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/dankalk.dk\/en\/ferrous-sulfate-and-iron-powder\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Forside","item":"https:\/\/dankalk.dk\/en\/"},{"@type":"ListItem","position":2,"name":"Ferrous sulfate and iron powder"}]},{"@type":"WebSite","@id":"https:\/\/dankalk.dk\/en\/#website","url":"https:\/\/dankalk.dk\/en\/","name":"DANKALK K\/S","description":"Kalk fra dansk kalkv\u00e6rk med over 100 \u00e5rs erfaring","publisher":{"@id":"https:\/\/dankalk.dk\/en\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/dankalk.dk\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/dankalk.dk\/en\/#organization","name":"DANKALK K\/S","url":"https:\/\/dankalk.dk\/en\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/dankalk.dk\/en\/#\/schema\/logo\/image\/","url":"https:\/\/dankalk.dk\/wp-content\/uploads\/2025\/11\/Dankalk_160x.png","contentUrl":"https:\/\/dankalk.dk\/wp-content\/uploads\/2025\/11\/Dankalk_160x.png","width":524,"height":100,"caption":"DANKALK K\/S"},"image":{"@id":"https:\/\/dankalk.dk\/en\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/dankalk.dk\/en\/wp-json\/wp\/v2\/pages\/11414","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dankalk.dk\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/dankalk.dk\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/dankalk.dk\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/dankalk.dk\/en\/wp-json\/wp\/v2\/comments?post=11414"}],"version-history":[{"count":5,"href":"https:\/\/dankalk.dk\/en\/wp-json\/wp\/v2\/pages\/11414\/revisions"}],"predecessor-version":[{"id":11511,"href":"https:\/\/dankalk.dk\/en\/wp-json\/wp\/v2\/pages\/11414\/revisions\/11511"}],"wp:attachment":[{"href":"https:\/\/dankalk.dk\/en\/wp-json\/wp\/v2\/media?parent=11414"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dankalk.dk\/en\/wp-json\/wp\/v2\/categories?post=11414"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}