{"id":2354,"date":"2025-04-30T06:26:04","date_gmt":"2025-04-30T06:26:04","guid":{"rendered":"https:\/\/injectis.testsparkel.be\/?post_type=references&#038;p=2354"},"modified":"2026-01-14T08:43:09","modified_gmt":"2026-01-14T08:43:09","slug":"cr-vi-an-harmful-metal-treated-by-injections-2","status":"publish","type":"references","link":"https:\/\/injectis.com\/fr\/references\/cr-vi-an-harmful-metal-treated-by-injections-2\/","title":{"rendered":"Cr (VI) : an harmful metal treated by injections"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"2354\" class=\"elementor elementor-2354\" data-elementor-post-type=\"references\">\n\t\t\t\t<div class=\"elementor-element elementor-element-363a18d e-con-full e-flex e-con e-parent\" data-id=\"363a18d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-7582e72 e-con-full container__l e-flex e-con e-child\" data-id=\"7582e72\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-0c03669 e-con-full e-flex e-con e-child\" data-id=\"0c03669\" 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-6d66182 e-con-full e-flex e-con e-child\" data-id=\"6d66182\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fca4973 elementor-widget elementor-widget-image\" data-id=\"fca4973\" 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=\"398\" height=\"282\" src=\"https:\/\/injectis.com\/wp-content\/uploads\/2025\/04\/web-ref-dhaene2.png\" class=\"attachment-large size-large wp-image-2219\" alt=\"\" srcset=\"https:\/\/injectis.com\/wp-content\/uploads\/2025\/04\/web-ref-dhaene2.png 398w, https:\/\/injectis.com\/wp-content\/uploads\/2025\/04\/web-ref-dhaene2-300x213.png 300w\" sizes=\"(max-width: 398px) 100vw, 398px\" \/>\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-be92da5 e-con-full e-flex e-con e-child\" data-id=\"be92da5\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a217a7c elementor-widget elementor-widget-heading\" data-id=\"a217a7c\" 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-00b32c3 elementor-widget elementor-widget-text-editor\" data-id=\"00b32c3\" 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>\u00a0Flanders, BE<\/div><div><strong>Geology:\u00a0<\/strong>Clayey silt<\/div><div><strong>Pollutant(s):\u00a0<\/strong>Cr (VI) : soil=150 mg\/kgms (Cr Tot) \/ GW: Cr(VI)= 4300 \u03bcg\/L<\/div><div><strong>Reaction:\u00a0<\/strong>\u00a0Precipitation by biological reduction<\/div><div><strong>Reagent(s):\u00a0<\/strong>\u00a0Carbon Source (ELS 10%)<\/div><div><strong>Application type:<\/strong>\u00a0Grid application<\/div><div><strong>Surface\/length:<\/strong>\u00a0300 m<sup>2<\/sup><\/div><div><strong>Number of points:<\/strong>\u00a026<br \/><strong>Depth interval:<\/strong>\u00a01,0 \u2013 7,0 m-bgl<\/div><div><strong>Dosage:<\/strong>\u00a0120-150 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-dbc4211 e-con-full e-flex elementor-invisible e-con e-parent\" data-id=\"dbc4211\" 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-3518bb7 e-con-full container__l e-flex e-con e-child\" data-id=\"3518bb7\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-b8f642a e-con-full e-flex e-con e-child\" data-id=\"b8f642a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-cdc5448 elementor-widget elementor-widget-heading\" data-id=\"cdc5448\" 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-b2e1218 elementor-widget elementor-widget-text-editor\" data-id=\"b2e1218\" 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>In a metal processing plant, soil and groundwater pollution was detected near the chromium plating baths, up to 10 m deep in a clayey silt.<\/p><p>The most appropriate remediation technique was in situ remediation by injection of reagents because of the low mobility of the pollutants and the great depth reached.<\/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-541df45 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=\"541df45\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5d9c477 elementor-widget elementor-widget-image\" data-id=\"5d9c477\" 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=\"800\" height=\"602\" src=\"https:\/\/injectis.com\/wp-content\/uploads\/2025\/04\/ISCO-treatment-of-chlorinated-ethenes-in-clay-soil-monitored-by-electrical-tomography-Bretagne-France-1024x771.jpg\" class=\"attachment-large size-large wp-image-2042\" alt=\"\" srcset=\"https:\/\/injectis.com\/wp-content\/uploads\/2025\/04\/ISCO-treatment-of-chlorinated-ethenes-in-clay-soil-monitored-by-electrical-tomography-Bretagne-France-1024x771.jpg 1024w, https:\/\/injectis.com\/wp-content\/uploads\/2025\/04\/ISCO-treatment-of-chlorinated-ethenes-in-clay-soil-monitored-by-electrical-tomography-Bretagne-France-300x226.jpg 300w, https:\/\/injectis.com\/wp-content\/uploads\/2025\/04\/ISCO-treatment-of-chlorinated-ethenes-in-clay-soil-monitored-by-electrical-tomography-Bretagne-France-768x578.jpg 768w, https:\/\/injectis.com\/wp-content\/uploads\/2025\/04\/ISCO-treatment-of-chlorinated-ethenes-in-clay-soil-monitored-by-electrical-tomography-Bretagne-France.jpg 1386w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\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-85a78a5 e-con-full e-flex elementor-invisible e-con e-parent\" data-id=\"85a78a5\" 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-a9d095b e-con-full container__l e-flex e-con e-child\" data-id=\"a9d095b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-c43d5bd 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=\"c43d5bd\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-167642f elementor-widget elementor-widget-image\" data-id=\"167642f\" 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=\"61\" src=\"https:\/\/injectis.com\/wp-content\/uploads\/2024\/06\/Afbeelding1-300x61-1.webp\" class=\"attachment-large size-large wp-image-869\" 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-339d11c e-con-full e-flex e-con e-child\" data-id=\"339d11c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-aff88b1 elementor-widget elementor-widget-heading\" data-id=\"aff88b1\" 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-1762dd1 elementor-widget elementor-widget-text-editor\" data-id=\"1762dd1\" 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>The reagents were proposed to obtain fast reducing conditions, especially in the most permeable layers of the site, but also to ensure a deep treatment with the combination of the ELS\u00ae solution (Lecithin-based substrate of food-grade carbon used to enhance anaerobic bioremediation) having a guaranteed longevity of 3 years and to allow time for the reagents to reach the less permeable parts of the area in order to optimize the treatment results.<\/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-23549f4 e-con-full e-flex elementor-invisible e-con e-parent\" data-id=\"23549f4\" 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-d711e6c e-con-full container__l e-flex e-con e-child\" data-id=\"d711e6c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-516bfb4 e-con-full e-flex e-con e-child\" data-id=\"516bfb4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4400938 elementor-widget elementor-widget-heading\" data-id=\"4400938\" 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\">Reagents<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a0e41f6 elementor-widget elementor-widget-text-editor\" data-id=\"a0e41f6\" 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>The site to be remediated is extensive and its geology is characterized by a high horizontal and vertical heterogeneity. For the low-permeability and heterogeneous zones, the remediation contractor selected the\u00a0<strong>SPIN\u00ae injection technology<\/strong> as the most suitable injection technique.<\/p><p>The selection of the most suitable injection technologies was based on a preliminary study by the remediation company. For this purpose, they developed a method to monitor injection distribution using\u00a0<strong>electrical tomography<\/strong>, placing electrodes inside monitoring wells located around and within the injection zone. These electrodes allowed for the detection of changes in\u00a0<strong>electrical resistivity<\/strong>\u00a0before and after injection.<\/p><p>Since\u00a0<strong>sodium persulfate<\/strong>\u00a0is an ionic salt, its presence in the groundwater alters the soil\u2019s electrical resistance. This enables, through interpolation and graphical representation (including\u00a0<strong>3D visualization<\/strong>), the assessment of the injection\u2019s impact, radius of influence and reagent distribution and allowed adjustment of the injection grid after each injection phase. This ensures the most\u00a0<strong>homogeneous treatment<\/strong>\u00a0of the area and maximizes the efficient usage of the injected reagents by optimizing the direct contact between the oxidant and the contaminants. The combination of\u00a0<strong>accurate injections<\/strong>\u00a0with\u00a0<strong>high resolution monitoring technologies<\/strong>\u00a0significantly enhances remediation effectiveness and helps achieve better outcomes.<\/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-e8bb201 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=\"e8bb201\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ec98c54 elementor-widget elementor-widget-image\" data-id=\"ec98c54\" 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=\"605\" height=\"167\" src=\"https:\/\/injectis.com\/wp-content\/uploads\/2025\/04\/ISCO-treatment-of-chlorinated-ethenes-in-clay-soil-monitored-by-electrical-tomography.png\" class=\"attachment-large size-large wp-image-2055\" alt=\"\" srcset=\"https:\/\/injectis.com\/wp-content\/uploads\/2025\/04\/ISCO-treatment-of-chlorinated-ethenes-in-clay-soil-monitored-by-electrical-tomography.png 605w, https:\/\/injectis.com\/wp-content\/uploads\/2025\/04\/ISCO-treatment-of-chlorinated-ethenes-in-clay-soil-monitored-by-electrical-tomography-300x83.png 300w\" sizes=\"(max-width: 605px) 100vw, 605px\" \/>\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-5b732ec 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 elementor-invisible e-con e-parent\" data-id=\"5b732ec\" 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-202e595 e-con-full container__l e-flex e-con e-child\" data-id=\"202e595\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-ed18c92 e-con-full e-flex e-con e-child\" data-id=\"ed18c92\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-35fa49f elementor-widget elementor-widget-image\" data-id=\"35fa49f\" 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=\"61\" src=\"https:\/\/injectis.com\/wp-content\/uploads\/2024\/06\/Afbeelding1-300x61-1.webp\" class=\"attachment-large size-large wp-image-869\" 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-28f831e e-con-full e-flex e-con e-child\" data-id=\"28f831e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2e8fb46 elementor-widget elementor-widget-heading\" data-id=\"2e8fb46\" 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\">Accessibility<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2c3ec25 elementor-widget elementor-widget-text-editor\" data-id=\"2c3ec25\" 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>Another challenge on this site was the limited accessibility, namely the presence of the pollution underneath an underground parking lot. The source and plume zone were only accessible via a car elevator with a maximum height of 2,0 m. For these conditions, Injectis has developed the Micro-SPIN\u00ae injection rig. This rig has an overall driving height of 1,95 m and a width of 78 cm, which makes the rig fit through a normal door opening, or in this case the car elevator.<\/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":2219,"template":"","categories":[],"class_list":["post-2354","references","type-references","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Cr (VI) : an harmful metal treated by injections - Injectis<\/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:\/\/injectis.com\/fr\/references\/cr-vi-an-harmful-metal-treated-by-injections-2\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cr (VI) : an harmful metal treated by injections - Injectis\" \/>\n<meta property=\"og:description\" content=\"Summary Location:\u00a0Flanders, BEGeology:\u00a0Clayey siltPollutant(s):\u00a0Cr (VI) : soil=150 mg\/kgms (Cr Tot) \/ GW: Cr(VI)= 4300 \u03bcg\/LReaction:\u00a0\u00a0Precipitation by biological reductionReagent(s):\u00a0\u00a0Carbon Source (ELS 10%)Application type:\u00a0Grid applicationSurface\/length:\u00a0300 m2Number of points:\u00a026Depth interval:\u00a01,0 \u2013 7,0 m-bglDosage:\u00a0120-150 l\/m Context In a metal processing plant, soil and groundwater pollution was detected near the chromium plating baths, up to 10 m deep in a [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/injectis.com\/fr\/references\/cr-vi-an-harmful-metal-treated-by-injections-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Injectis\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-14T08:43:09+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/injectis.com\/wp-content\/uploads\/2025\/04\/web-ref-dhaene2.png\" \/>\n\t<meta property=\"og:image:width\" content=\"398\" \/>\n\t<meta property=\"og:image:height\" content=\"282\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/injectis.com\\\/fr\\\/references\\\/cr-vi-an-harmful-metal-treated-by-injections-2\\\/\",\"url\":\"https:\\\/\\\/injectis.com\\\/fr\\\/references\\\/cr-vi-an-harmful-metal-treated-by-injections-2\\\/\",\"name\":\"Cr (VI) : an harmful metal treated by injections - 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Injectis","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:\/\/injectis.com\/fr\/references\/cr-vi-an-harmful-metal-treated-by-injections-2\/","og_locale":"fr_FR","og_type":"article","og_title":"Cr (VI) : an harmful metal treated by injections - Injectis","og_description":"Summary Location:\u00a0Flanders, BEGeology:\u00a0Clayey siltPollutant(s):\u00a0Cr (VI) : soil=150 mg\/kgms (Cr Tot) \/ GW: Cr(VI)= 4300 \u03bcg\/LReaction:\u00a0\u00a0Precipitation by biological reductionReagent(s):\u00a0\u00a0Carbon Source (ELS 10%)Application type:\u00a0Grid applicationSurface\/length:\u00a0300 m2Number of points:\u00a026Depth interval:\u00a01,0 \u2013 7,0 m-bglDosage:\u00a0120-150 l\/m Context In a metal processing plant, soil and groundwater pollution was detected near the chromium plating baths, up to 10 m deep in a [&hellip;]","og_url":"https:\/\/injectis.com\/fr\/references\/cr-vi-an-harmful-metal-treated-by-injections-2\/","og_site_name":"Injectis","article_modified_time":"2026-01-14T08:43:09+00:00","og_image":[{"width":398,"height":282,"url":"https:\/\/injectis.com\/wp-content\/uploads\/2025\/04\/web-ref-dhaene2.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"Dur\u00e9e de lecture estim\u00e9e":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/injectis.com\/fr\/references\/cr-vi-an-harmful-metal-treated-by-injections-2\/","url":"https:\/\/injectis.com\/fr\/references\/cr-vi-an-harmful-metal-treated-by-injections-2\/","name":"Cr (VI) : an harmful metal treated by injections - 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