{"id":2654,"date":"2025-05-14T07:21:06","date_gmt":"2025-05-14T07:21:06","guid":{"rendered":"https:\/\/injectis.testsparkel.be\/?post_type=references&#038;p=2654"},"modified":"2026-01-14T08:37:49","modified_gmt":"2026-01-14T08:37:49","slug":"small-machine-for-small-biological-in-situ-treatment","status":"publish","type":"references","link":"https:\/\/injectis.com\/nl\/references\/small-machine-for-small-biological-in-situ-treatment\/","title":{"rendered":"Small machine for small biological in situ treatment"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"2654\" class=\"elementor elementor-2654\" 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=\"800\" height=\"620\" src=\"https:\/\/injectis.com\/wp-content\/uploads\/2025\/05\/small-machine-strong-v2-1024x794.jpg\" class=\"attachment-large size-large wp-image-3885\" alt=\"\" srcset=\"https:\/\/injectis.com\/wp-content\/uploads\/2025\/05\/small-machine-strong-v2-1024x794.jpg 1024w, https:\/\/injectis.com\/wp-content\/uploads\/2025\/05\/small-machine-strong-v2-300x233.jpg 300w, https:\/\/injectis.com\/wp-content\/uploads\/2025\/05\/small-machine-strong-v2-768x596.jpg 768w, https:\/\/injectis.com\/wp-content\/uploads\/2025\/05\/small-machine-strong-v2.jpg 1360w\" 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<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<p><strong>Location:<\/strong> Wallonia, Belgium<br \/><strong>Geology:<\/strong> red silt<br \/><strong>Pollutant(s):<\/strong>\u00a0 HCT C5-C16 (5.000 \u03bcg\/l) and BTEX (\u03a3 : 250 \u03bcg\/l). HCT : 2.500 mg.kg.ms<br \/><strong>Reaction:<\/strong> Anaerobic Biological Oxidation (ABO)<br \/><strong>Reagent(s):<\/strong> Magnesium sulfate<br \/><strong>Application type:<\/strong> Grid application<br \/><strong>Surface\/length:<\/strong> 100 m2<br \/><strong>Number of points<\/strong>: 6<br \/><strong>Depth interval:<\/strong> 2,5 \u2013 5,0 m-bgl<br \/><strong>Dosage:<\/strong> 100 l\/m<\/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<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>This remediation project takes place as part of the sale of a former service station in Wallonia. The site is affected by a typical petroleum hydrocarbon contamination, (diesel + gasoline with BTEX compounds). Soil concentrations reach up to 1.500 mg\/kg dry matter for TPH (C5\u2013C16), and 20 mg\/kg for benzene, xylenes, and ethylbenzene. Groundwater, located at approximately 2\u202fm-bgl, shows TPH levels around 5.000\u202f\u00b5g\/L. The contamination extends over roughly 100\u202fm\u00b2, mainly beneath the building, which has a basement accessible only by stairs and with a ceiling height of 2\u202fm. Due to the sealed nature of the dispenser area, direct injections in that zone are not possible. Therefore, the treatment strategy will rely on targeted injections carried out from the basement with our <strong>SPIN\u00ae Injection Technology<\/strong>\u00a0aiming to cover the entire impacted zone from below.<\/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 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=\"768\" height=\"1024\" src=\"https:\/\/injectis.com\/wp-content\/uploads\/2025\/05\/case-aywaille-2-768x1024.jpg\" class=\"attachment-large size-large wp-image-2663\" alt=\"\" srcset=\"https:\/\/injectis.com\/wp-content\/uploads\/2025\/05\/case-aywaille-2-768x1024.jpg 768w, https:\/\/injectis.com\/wp-content\/uploads\/2025\/05\/case-aywaille-2-225x300.jpg 225w, https:\/\/injectis.com\/wp-content\/uploads\/2025\/05\/case-aywaille-2-1152x1536.jpg 1152w, https:\/\/injectis.com\/wp-content\/uploads\/2025\/05\/case-aywaille-2.jpg 1386w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\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 decoding=\"async\" width=\"766\" height=\"1022\" src=\"https:\/\/injectis.com\/wp-content\/uploads\/2025\/05\/case-aywaille-3.jpg\" class=\"attachment-large size-large wp-image-2667\" alt=\"\" srcset=\"https:\/\/injectis.com\/wp-content\/uploads\/2025\/05\/case-aywaille-3.jpg 766w, https:\/\/injectis.com\/wp-content\/uploads\/2025\/05\/case-aywaille-3-225x300.jpg 225w\" sizes=\"(max-width: 766px) 100vw, 766px\" \/>\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\">Reaction<\/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>Although petroleum hydrocarbons are treated using the oxidation pathway, and often the chemical oxidation (ISCO), but this method presents significant risks in this case. Injecting chemical oxidants near underground structures\u2014such as tanks and pipelines, often metallic in older stations\u2014could damage them and potentially worsen the contamination. Instead, the presence of BTEX in the subsurface offers a natural advantage: these compounds serve as readily available carbon sources for native soil bacteria, which can initiate biodegradation. This biological activity rapidly consumes available oxygen through aerobic respiration, quickly shifting conditions toward anaerobic Sulfate-reducing conditions, which are favorable for further biodegradation. Given these factors, the selected remediation strategy is to support the site&#8217;s natural attenuation capacity by enhancing <strong>anaerobic biological oxidation<\/strong> (ABO).<\/p>\n<p>In&nbsp;<strong>ISCO<\/strong>&nbsp;treatment, chemical reaction and hence&nbsp;<strong>physical contact<\/strong>&nbsp;is the&nbsp;<strong>key parameter<\/strong>&nbsp;to guarantee successful remediation results. In addition to using the SPIN\u00ae Injection Technology, the remediation company opted for electrical tomography measurements to verify the quality of the reagent distribution.<\/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\">Reagent<\/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>A commonly used reagent that combines chemical and biological treatment mechanisms is sodium persulfate. As a strong oxidant, it initiates a chemical oxidation (ISCO) process that breaks down hydrocarbons, while simultaneously releasing sulfates into the subsurface. These sulfate ions serve as electron acceptors for sulfate-reducing bacteria in anaerobic conditions. These bacteria can then biologically degrade hydrocarbons through anaerobic oxidation. This dual action makes sodium persulfate a preferred reagent for many petroleum hydrocarbon remediation projects.<\/p><p>However, due to the risk of oxidant-induced corrosion near underground infrastructure (e.g., metallic tanks and pipes), a soft alternative approach was chosen for this project. Instead of using an oxidant, <strong>magnesium sulfate<\/strong> was selected. This compound is not an oxidant but a salt that effectively stimulates sulfate-reducing bacteria, enhancing the anaerobic biodegradation of hydrocarbons. It offers a safe, cost-effective, and efficient biological alternative, particularly well-suited for sensitive or confined site conditions like those encountered here.<\/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 loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/injectis.com\/wp-content\/uploads\/2025\/05\/case-aywaille-4-1024x768.jpg\" class=\"attachment-large size-large wp-image-2671\" alt=\"\" srcset=\"https:\/\/injectis.com\/wp-content\/uploads\/2025\/05\/case-aywaille-4-1024x768.jpg 1024w, https:\/\/injectis.com\/wp-content\/uploads\/2025\/05\/case-aywaille-4-300x225.jpg 300w, https:\/\/injectis.com\/wp-content\/uploads\/2025\/05\/case-aywaille-4-768x576.jpg 768w, https:\/\/injectis.com\/wp-content\/uploads\/2025\/05\/case-aywaille-4.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\t\t<\/div>\n\t\t","protected":false},"author":10,"featured_media":3885,"template":"","categories":[],"class_list":["post-2654","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>Small machine for small biological in situ treatment - 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\/nl\/references\/small-machine-for-small-biological-in-situ-treatment\/\" \/>\n<meta property=\"og:locale\" content=\"nl_NL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Small machine for small biological in situ treatment - Injectis\" \/>\n<meta property=\"og:description\" content=\"Summary Location: Wallonia, BelgiumGeology: red siltPollutant(s):\u00a0 HCT C5-C16 (5.000 \u03bcg\/l) and BTEX (\u03a3 : 250 \u03bcg\/l). HCT : 2.500 mg.kg.msReaction: Anaerobic Biological Oxidation (ABO)Reagent(s): Magnesium sulfateApplication type: Grid applicationSurface\/length: 100 m2Number of points: 6Depth interval: 2,5 \u2013 5,0 m-bglDosage: 100 l\/m Context This remediation project takes place as part of the sale of a former [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/injectis.com\/nl\/references\/small-machine-for-small-biological-in-situ-treatment\/\" \/>\n<meta property=\"og:site_name\" content=\"Injectis\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-14T08:37:49+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/injectis.com\/wp-content\/uploads\/2025\/05\/small-machine-strong-v2.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1360\" \/>\n\t<meta property=\"og:image:height\" content=\"1055\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Geschatte leestijd\" \/>\n\t<meta name=\"twitter:data1\" content=\"4 minuten\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/injectis.com\\\/nl\\\/references\\\/small-machine-for-small-biological-in-situ-treatment\\\/\",\"url\":\"https:\\\/\\\/injectis.com\\\/nl\\\/references\\\/small-machine-for-small-biological-in-situ-treatment\\\/\",\"name\":\"Small machine for small biological in situ treatment - Injectis\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/injectis.com\\\/nl\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/injectis.com\\\/nl\\\/references\\\/small-machine-for-small-biological-in-situ-treatment\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/injectis.com\\\/nl\\\/references\\\/small-machine-for-small-biological-in-situ-treatment\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/injectis.com\\\/wp-content\\\/uploads\\\/2025\\\/05\\\/small-machine-strong-v2.jpg\",\"datePublished\":\"2025-05-14T07:21:06+00:00\",\"dateModified\":\"2026-01-14T08:37:49+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/injectis.com\\\/nl\\\/references\\\/small-machine-for-small-biological-in-situ-treatment\\\/#breadcrumb\"},\"inLanguage\":\"nl-NL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/injectis.com\\\/nl\\\/references\\\/small-machine-for-small-biological-in-situ-treatment\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"nl-NL\",\"@id\":\"https:\\\/\\\/injectis.com\\\/nl\\\/references\\\/small-machine-for-small-biological-in-situ-treatment\\\/#primaryimage\",\"url\":\"https:\\\/\\\/injectis.com\\\/wp-content\\\/uploads\\\/2025\\\/05\\\/small-machine-strong-v2.jpg\",\"contentUrl\":\"https:\\\/\\\/injectis.com\\\/wp-content\\\/uploads\\\/2025\\\/05\\\/small-machine-strong-v2.jpg\",\"width\":1360,\"height\":1055},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/injectis.com\\\/nl\\\/references\\\/small-machine-for-small-biological-in-situ-treatment\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/injectis.com\\\/nl\\\/home\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Small machine for small biological in situ treatment\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/injectis.com\\\/nl\\\/#website\",\"url\":\"https:\\\/\\\/injectis.com\\\/nl\\\/\",\"name\":\"Injectis\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/injectis.com\\\/nl\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"nl-NL\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Small machine for small biological in situ treatment - 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\/nl\/references\/small-machine-for-small-biological-in-situ-treatment\/","og_locale":"nl_NL","og_type":"article","og_title":"Small machine for small biological in situ treatment - Injectis","og_description":"Summary Location: Wallonia, BelgiumGeology: red siltPollutant(s):\u00a0 HCT C5-C16 (5.000 \u03bcg\/l) and BTEX (\u03a3 : 250 \u03bcg\/l). 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