{"id":79493,"date":"2025-02-18T09:58:24","date_gmt":"2025-02-18T08:58:24","guid":{"rendered":"https:\/\/www.kwrwater.nl\/actueel\/op-praktijkschaal-kennis-ontwikkelen-om-pfas-problematiek-op-te-lossen\/"},"modified":"2025-03-25T13:23:35","modified_gmt":"2025-03-25T12:23:35","slug":"op-praktijkschaal-kennis-ontwikkelen-om-pfas-problematiek-op-te-lossen","status":"publish","type":"post","link":"https:\/\/www.kwrwater.nl\/en\/actueel\/op-praktijkschaal-kennis-ontwikkelen-om-pfas-problematiek-op-te-lossen\/","title":{"rendered":"Developing knowledge on practical scale to solve PFAS problem"},"content":{"rendered":"<div class=\"post_intro\">\n<p>No use of traditional \u2018dig and dump\u2019 methods, in which contaminated soil is dug up and dumped in a landfill site, but rather the development of sustainable applications to address PFAS contamination. That is at the heart of the PFAS Living Lab project. The initial results are very promising. \u2018Leaching of PFAS with biodegradable soap works a lot better than with water alone,\u2019 says Johan van Leeuwen, KWR researcher and associate scientist at Utrecht University. \u2018And I am anticipating the development of a lot more knowledge that can be applied in practice.&#8221;<\/p>\n<\/div>\n<p>For many years up until 2014, fire-extinguishing exercises were carried out on the Utrecht University campus to train the company emergency response staff who work there. Until recently, the fire-fighting foam contained PFAS, which is a collective name for chemicals that have water-, grease- and dirt-repellent properties, and are not or barely degradable in the environment. The chemicals ended up in the soil, and this place \u2013 very conveniently located on academic land \u2013 is now the site of the four-year <a href=\"https:\/\/www.uu.nl\/organisatie\/centre-for-living-labs\/living-labs\/pfas-remediation\" target=\"_blank\" rel=\"noopener\">PFAS Living Lab-project<\/a> that was launched on 1 September 2024.<\/p>\n<h2>Understanding PFAS<\/h2>\n<p>The Living Lab is a test bed in which researchers and students investigate the behaviour of PFAS in the soil and seek measures to sustainably clean up such contaminants. The activities are part of <a href=\"https:\/\/www.kwrwater.nl\/actueel\/wat-we-weten-over-pfas-de-stand-van-zaken\/\">KWR\u2019s extensive research into PFAS<\/a><a href=\"https:\/\/www.kwrwater.nl\/en\/actueel\/wat-we-weten-over-pfas-de-stand-van-zaken\/\" target=\"_blank\" rel=\"noopener\">,<\/a>\u00a0says Van Leeuwen, the project\u2019s scientific coordinator. \u2018We want to develop knowledge on a practical scale with the aim of solving the PFAS problem. It is therefore important to understand how PFAS behave in the soil. Because if these chemicals are present in the shallow soil, they can also penetrate to the deeper soil levels. If PFAS reach the groundwater, the quality of the raw water from which drinking water is produced is threatened. The added value of a Living Lab is that it allows you to carry out tests in the living environment. That\u2019s on a larger scale than between four walls under laboratory conditions. Instead of working on a single soil type under controlled conditions, in the field you\u2019re dealing with a variety of soil types each with its own characteristics. That makes it more difficult to come up with solutions, but it also gives you a better idea of the ultimate outcomes.\u201d<\/p>\n<h2>Multidisciplinary approach<\/h2>\n<p>Although the project only got under way last spring, the first scientific paper has already been submitted for consideration. The paper presents the results of successful experiments in which PFAS are leached from the soil through the use of biodegradable soap. In addition, a number of other methods are in the line-up for the collection of new knowledge on sustainable PFAS remediation. Van Leeuwen: \u2018Think of electrostatic sorption of PFAS in the soil, about which little is known. With this technique, through an electrical charge, the PFAS become, as it were, glued to a particle such as a mineral. We also test a variety of materials \u2013 the so-called \u201csorbents\u201d \u2013 to which PFAS become attached. And we want to develop remediation techniques using bio- or geo-chemical barriers. When a PFAS contaminated groundwater plume turns up, a \u201creactive screen\u201d of this type can be used to prevent it from spreading further. In addition, we study the impact of PFAS on the ecology.\u2019 Thus, an extremely broad approach, which draws on a variety of scientific disciplines, and is also conducted jointly with KWR as a knowledge institute that works in water practice. \u2018To come up with remediation solutions, you need to operate collaboratively on various approach pathways,\u2019 says Van Leeuwen. \u2018That is really the most efficient way.&#8221;<\/p>\n<div class=\"slideshow\"><div class=\"slideshow_preloader\"><\/div><div class=\"slideshow_slick\"><div><img decoding=\"async\" src=\"https:\/\/www.kwrwater.nl\/wp-content\/uploads\/2025\/02\/EMMR20240917-Universiteit_Utrecht-154-780x470.jpg\" width=\"https:\/\/www.kwrwater.nl\/wp-content\/uploads\/2025\/02\/EMMR20240917-Universiteit_Utrecht-154-780x470.jpg\" height=\"https:\/\/www.kwrwater.nl\/wp-content\/uploads\/2025\/02\/EMMR20240917-Universiteit_Utrecht-154-780x470.jpg\" alt=\"Foto: Esther Meijer\" \/><div class=\"caption\">Photo: Esther Meijer<\/div><\/div><div><img decoding=\"async\" src=\"https:\/\/www.kwrwater.nl\/wp-content\/uploads\/2025\/02\/EMMR20240917-Universiteit_Utrecht-115-780x470.jpg\" width=\"https:\/\/www.kwrwater.nl\/wp-content\/uploads\/2025\/02\/EMMR20240917-Universiteit_Utrecht-115-780x470.jpg\" height=\"https:\/\/www.kwrwater.nl\/wp-content\/uploads\/2025\/02\/EMMR20240917-Universiteit_Utrecht-115-780x470.jpg\" alt=\"Foto: Esther Meijer\" \/><div class=\"caption\">Photo: Esther Meijer<\/div><\/div><div><img decoding=\"async\" src=\"https:\/\/www.kwrwater.nl\/wp-content\/uploads\/2025\/02\/EMMR20240917-Universiteit_Utrecht-084-780x470.jpg\" width=\"https:\/\/www.kwrwater.nl\/wp-content\/uploads\/2025\/02\/EMMR20240917-Universiteit_Utrecht-084-780x470.jpg\" height=\"https:\/\/www.kwrwater.nl\/wp-content\/uploads\/2025\/02\/EMMR20240917-Universiteit_Utrecht-084-780x470.jpg\" alt=\"Foto: Esther Meijer\" \/><div class=\"caption\">Photo: Esther Meijer<\/div><\/div><div><img decoding=\"async\" src=\"https:\/\/www.kwrwater.nl\/wp-content\/uploads\/2025\/02\/EMMR20240917-Universiteit_Utrecht-133-780x470.jpg\" width=\"https:\/\/www.kwrwater.nl\/wp-content\/uploads\/2025\/02\/EMMR20240917-Universiteit_Utrecht-133-780x470.jpg\" height=\"https:\/\/www.kwrwater.nl\/wp-content\/uploads\/2025\/02\/EMMR20240917-Universiteit_Utrecht-133-780x470.jpg\" alt=\"Foto: Esther Meijer\" \/><div class=\"caption\">Photo: Esther Meijer<\/div><\/div><\/div><div class=\"slideshow_nav\"><div class=\"slideshow_nav_item\"><img decoding=\"async\" src=\"https:\/\/www.kwrwater.nl\/wp-content\/uploads\/2025\/02\/EMMR20240917-Universiteit_Utrecht-154-150x150.jpg\" width=\"https:\/\/www.kwrwater.nl\/wp-content\/uploads\/2025\/02\/EMMR20240917-Universiteit_Utrecht-154-150x150.jpg\" height=\"https:\/\/www.kwrwater.nl\/wp-content\/uploads\/2025\/02\/EMMR20240917-Universiteit_Utrecht-154-150x150.jpg\" alt=\"Foto: Esther Meijer\" \/><\/div><div class=\"slideshow_nav_item\"><img decoding=\"async\" src=\"https:\/\/www.kwrwater.nl\/wp-content\/uploads\/2025\/02\/EMMR20240917-Universiteit_Utrecht-115-150x150.jpg\" width=\"https:\/\/www.kwrwater.nl\/wp-content\/uploads\/2025\/02\/EMMR20240917-Universiteit_Utrecht-115-150x150.jpg\" height=\"https:\/\/www.kwrwater.nl\/wp-content\/uploads\/2025\/02\/EMMR20240917-Universiteit_Utrecht-115-150x150.jpg\" alt=\"Foto: Esther Meijer\" \/><\/div><div class=\"slideshow_nav_item\"><img decoding=\"async\" src=\"https:\/\/www.kwrwater.nl\/wp-content\/uploads\/2025\/02\/EMMR20240917-Universiteit_Utrecht-084-150x150.jpg\" width=\"https:\/\/www.kwrwater.nl\/wp-content\/uploads\/2025\/02\/EMMR20240917-Universiteit_Utrecht-084-150x150.jpg\" height=\"https:\/\/www.kwrwater.nl\/wp-content\/uploads\/2025\/02\/EMMR20240917-Universiteit_Utrecht-084-150x150.jpg\" alt=\"Foto: Esther Meijer\" \/><\/div><div class=\"slideshow_nav_item\"><img decoding=\"async\" src=\"https:\/\/www.kwrwater.nl\/wp-content\/uploads\/2025\/02\/EMMR20240917-Universiteit_Utrecht-133-150x150.jpg\" width=\"https:\/\/www.kwrwater.nl\/wp-content\/uploads\/2025\/02\/EMMR20240917-Universiteit_Utrecht-133-150x150.jpg\" height=\"https:\/\/www.kwrwater.nl\/wp-content\/uploads\/2025\/02\/EMMR20240917-Universiteit_Utrecht-133-150x150.jpg\" alt=\"Foto: Esther Meijer\" \/><\/div><\/div><\/div>\n<h2>Nice interplay<\/h2>\n<p>By fulfilling a research function both at Utrecht University and at KWR, Van Leeuwen moves between fundamental science and practice. \u2018At the university we use the Living Lab to investigate research questions related to PFAS. We try to link these to the situation in the field. Conversely, in my KWR work, I come across practice locations that face problems related to PFAS that need to be solved. I wouldn\u2019t be able to tackle challenges of this sort if I belonged solely to the academic community. In this context we are currently working at KWR on a project proposal for the Province of Gelderland, where there are questions concerning PFAS. They heard about our Living Lab and came to us with a question that consultancies can\u2019t solve, because they don\u2019t have the knowledge and equipment. A nice interplay.&#8221;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Initial results from the PFAS Living Lab project are promising. For example, leaching of PFAS with soap works much better than rinsing with tap water, and further sustainable applications for PFAS soil remediation are being investigated. <\/p>\n","protected":false},"author":5,"featured_media":79070,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","footnotes":""},"categories":[9],"tags":[],"class_list":["post-79493","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Developing knowledge on practical scale to solve PFAS problem - KWR<\/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:\/\/www.kwrwater.nl\/en\/actueel\/op-praktijkschaal-kennis-ontwikkelen-om-pfas-problematiek-op-te-lossen\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Developing knowledge on practical scale to solve PFAS problem - KWR\" \/>\n<meta property=\"og:description\" content=\"Initial results from the PFAS Living Lab project are promising. 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