{"id":2450,"date":"2025-04-30T07:19:41","date_gmt":"2025-04-30T07:19:41","guid":{"rendered":"https:\/\/injectis.testsparkel.be\/?post_type=references&#038;p=2450"},"modified":"2026-01-14T08:45:09","modified_gmt":"2026-01-14T08:45:09","slug":"a-permeable-reactive-barrier-of-zero-valent-iron","status":"publish","type":"references","link":"https:\/\/injectis.com\/es\/references\/a-permeable-reactive-barrier-of-zero-valent-iron\/","title":{"rendered":"A permeable reactive barrier of Zero Valent Iron"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"2450\" class=\"elementor elementor-2450\" data-elementor-post-type=\"references\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c15e42c e-con-full e-flex e-con e-parent\" data-id=\"c15e42c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-2d24f86 e-con-full container__l e-flex e-con e-child\" data-id=\"2d24f86\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-cf302a4 e-con-full e-flex e-con e-child\" data-id=\"cf302a4\" 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-2272bb8 e-con-full e-flex e-con e-child\" data-id=\"2272bb8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-30cd15b elementor-widget elementor-widget-image\" data-id=\"30cd15b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"536\" height=\"436\" src=\"https:\/\/injectis.com\/wp-content\/uploads\/2025\/04\/web-ref-farum3.png\" class=\"attachment-large size-large wp-image-2242\" alt=\"\" srcset=\"https:\/\/injectis.com\/wp-content\/uploads\/2025\/04\/web-ref-farum3.png 536w, https:\/\/injectis.com\/wp-content\/uploads\/2025\/04\/web-ref-farum3-300x244.png 300w\" sizes=\"(max-width: 536px) 100vw, 536px\" \/>\t\t\t\t\t\t\t\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-d987f59 e-con-full e-flex e-con e-child\" data-id=\"d987f59\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-32e6e5b elementor-widget elementor-widget-heading\" data-id=\"32e6e5b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Summary<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-214cbd9 elementor-widget elementor-widget-text-editor\" data-id=\"214cbd9\" 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<div><strong>Location:<\/strong>\u00a0Farum, Denmark<\/div><div><strong>Geology:<\/strong>very heterogeneous: Alternance of Sandy \/Clay layers<\/div><div><strong>Pollutant(s):\u00a0<\/strong>\u00a0HCOV<\/div><div><strong>Reaction: <\/strong> ISCR<\/div><div><strong>Reagent(s): <\/strong> Zero Valent Iron (ZVI)<\/div><div><strong>Application type:<\/strong>\u00a0Permeable Reactive Barrier (PRB)<\/div><div><strong>Surface\/length:<\/strong>\u00a015 m<\/div><div><strong>Number of points:<\/strong>\u00a04<br \/><strong>Depth interval:<\/strong> 13,5 &#8211; 16,5 m-bgl<\/div><div><strong>Dosage:<\/strong> 1550 l\/m<\/div>\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<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5d270a0 e-con-full e-flex elementor-invisible e-con e-parent\" data-id=\"5d270a0\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;animation&quot;:&quot;fadeIn&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-b48fab2 e-con-full container__l e-flex e-con e-child\" data-id=\"b48fab2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-ac227c8 e-con-full e-flex e-con e-child\" data-id=\"ac227c8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9e02eb0 elementor-widget elementor-widget-heading\" data-id=\"9e02eb0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Context<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-29ca263 elementor-widget elementor-widget-text-editor\" data-id=\"29ca263\" 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 style=\"font-weight: 400;\">In order to test the conditions of injectability and the efficiency of the chemical reduction by the Zero Valent Iron (ZVI) \u00a0in the treatment of water pollution in chlorinated solvents, the SPIN\u00ae Injection Technology was used in this pilot to install a permeable reactive barrier (PRB) .<\/p><p style=\"font-weight: 400;\">The site geology was very heterogeneous, with alternance of sandy layers and clay layers which made the SPIN\u00ae Injection Technology the best solution of injection to guarantee a continuous and homogeneous injection whatever the permeability of the soil. Indeed, traditional injection techniques cannot perform this work with good results. Firstly, injections with injection screens, will preferentially target the more permeable sand layers. Secondly, regarding Direct Push (DP) technology that cannot inject continuously (only each 0,3 to 1 m soil interval) and with very high probability to create fractures in the clay layers preventing an optimal reaction.<\/p><p style=\"font-weight: 400;\">To ensure that the best injection technique was selected for the full-scale project, the pilot was carried out with both techniques: Direct Push vs SPIN\u00ae Injection Technology.<\/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<div class=\"elementor-element elementor-element-05143f6 e-con-full elementor-hidden-desktop elementor-hidden-laptop elementor-hidden-tablet_extra elementor-hidden-tablet elementor-hidden-mobile_extra elementor-hidden-mobile e-flex e-con e-child\" data-id=\"05143f6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5ae986e elementor-widget elementor-widget-image\" data-id=\"5ae986e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"300\" height=\"225\" src=\"https:\/\/injectis.com\/wp-content\/uploads\/2024\/06\/IMG_2310-300x225-1.webp\" class=\"attachment-large size-large wp-image-863\" alt=\"\" \/>\t\t\t\t\t\t\t\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<\/div>\n\t\t<div class=\"elementor-element elementor-element-96f251e e-con-full e-flex elementor-invisible e-con e-parent\" data-id=\"96f251e\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;animation&quot;:&quot;fadeIn&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-f7d1dcc e-con-full container__l e-flex e-con e-child\" data-id=\"f7d1dcc\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-ff34833 e-con-full e-flex e-con e-child\" data-id=\"ff34833\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-133d323 elementor-widget elementor-widget-image\" data-id=\"133d323\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"252\" height=\"179\" src=\"https:\/\/injectis.com\/wp-content\/uploads\/2025\/04\/web-ref-farum2.png\" class=\"attachment-large size-large wp-image-2238\" alt=\"\" \/>\t\t\t\t\t\t\t\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-a0bb749 e-con-full e-flex e-con e-child\" data-id=\"a0bb749\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ebb2fab elementor-widget elementor-widget-heading\" data-id=\"ebb2fab\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Reaction<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fe8bc76 elementor-widget elementor-widget-text-editor\" data-id=\"fe8bc76\" 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>Zero valent iron (ZVI) was used as a reducing agent playing the role of electron acceptors in the reduction chemical reaction. ZVI particles are small enough to remain suspended in water and facilitate injection directly into aquifers at low pressures. A thickener an adjuvant (guar-based liquid) was added to the mixture to ensure and prolong the suspension of the iron in the injected solution and optimize the injectability and guaranty an optimal contact.<\/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<\/div>\n\t\t<div class=\"elementor-element elementor-element-ff2dfe1 e-con-full e-flex elementor-invisible e-con e-parent\" data-id=\"ff2dfe1\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;animation&quot;:&quot;fadeIn&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-e2a1724 e-con-full container__l e-flex e-con e-child\" data-id=\"e2a1724\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-c1f0b9b e-con-full e-flex e-con e-child\" data-id=\"c1f0b9b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b7fb652 elementor-widget elementor-widget-heading\" data-id=\"b7fb652\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Particularity<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e23c612 elementor-widget elementor-widget-text-editor\" data-id=\"e23c612\" 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 style=\"font-weight: 400;\">For this pilot test, in addition to the significant depths at which the PRB had to be installed, namely between 13.5 and 16.5m-bgl, Injectis succeeded in installing the barrier achieving injections with high dosage of 1550 L\/m (whereas most traditional injections reach 200-300 L\/m).<\/p><p style=\"font-weight: 400;\">During this injection, it was discovered that also in the <em>morene<\/em> sand layer underneath the gravel layer, there are some stones\/gravel which could not be handled with the standard SPIN\u00ae Injection Technology injector. To overcome the need for predrilling the injection points and to overcome the problem of getting stuck on stones underneath the gravel layer, the \u201cGravel-SPIN\u00ae Injection Technology\u00bb injection head has been successfully used to deal with the individual stones in the <em>morene<\/em> sands underneath the gravel layer and inject the desired volumes homogeneously<\/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<div class=\"elementor-element elementor-element-874f6da e-con-full e-flex e-con e-child\" data-id=\"874f6da\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e4ae130 elementor-widget elementor-widget-image\" data-id=\"e4ae130\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"536\" height=\"436\" src=\"https:\/\/injectis.com\/wp-content\/uploads\/2025\/04\/web-ref-farum3.png\" class=\"attachment-large size-large wp-image-2242\" alt=\"\" srcset=\"https:\/\/injectis.com\/wp-content\/uploads\/2025\/04\/web-ref-farum3.png 536w, https:\/\/injectis.com\/wp-content\/uploads\/2025\/04\/web-ref-farum3-300x244.png 300w\" sizes=\"(max-width: 536px) 100vw, 536px\" \/>\t\t\t\t\t\t\t\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<\/div>\n\t\t<div class=\"elementor-element elementor-element-9891f38 e-con-full e-flex elementor-invisible e-con e-parent\" data-id=\"9891f38\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;animation&quot;:&quot;fadeIn&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-7714b1d e-con-full container__l e-flex e-con e-child\" data-id=\"7714b1d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-b58514b e-con-full e-flex e-con e-child\" data-id=\"b58514b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8299d48 elementor-widget elementor-widget-image\" data-id=\"8299d48\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"259\" height=\"249\" src=\"https:\/\/injectis.com\/wp-content\/uploads\/2025\/04\/web-ref-farum4.png\" class=\"attachment-large size-large wp-image-2246\" alt=\"\" \/>\t\t\t\t\t\t\t\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-33bab60 e-con-full e-flex e-con e-child\" data-id=\"33bab60\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d56314c elementor-widget elementor-widget-heading\" data-id=\"d56314c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Results<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ce62565 elementor-widget elementor-widget-text-editor\" data-id=\"ce62565\" 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 style=\"font-weight: 400;\">During the injections of the different type of ZVI and combinaison of concentrations, the radius of influence (ROI) was observed with an overlap on the observation wells.<\/p><p style=\"font-weight: 400;\">The post-intervention monitoring showed the effectiveness of the SPIN\u00ae Injection Technology in setting up the permeable barrier reactive to the ZVI reducing the HCOV concentrations in the dissolved phase.<\/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<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"author":10,"featured_media":2242,"template":"","categories":[],"class_list":["post-2450","references","type-references","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - 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