{"id":12053,"date":"2018-10-22T13:45:28","date_gmt":"2018-10-22T11:45:28","guid":{"rendered":"https:\/\/www.kwrwater.nl\/actueel\/kwr-onderzoekers-achterhalen-oorzaak-falen-rioolwaterzuivering\/"},"modified":"2021-10-01T09:24:57","modified_gmt":"2021-10-01T07:24:57","slug":"kwr-onderzoekers-achterhalen-oorzaak-falen-rioolwaterzuivering","status":"publish","type":"post","link":"https:\/\/www.kwrwater.nl\/en\/actueel\/kwr-onderzoekers-achterhalen-oorzaak-falen-rioolwaterzuivering\/","title":{"rendered":"KWR researchers discover cause of wastewater treatment malfunction"},"content":{"rendered":"<div class=\"post_intro\">\n<p>The cause of malfunctions in wastewater treatment plants (WWTPs) or industrial wastewater treatment plants (IWWTs) is often difficult to discover. An example of such a malfunction is the loss in nitrification capacity, that is, the degree to which nitrogen compounds are degraded in the wastewater. The presence of certain substances in the water can lead to a reduction in the plant\u2019s nitrification capacity. The analysis of these substances often focuses on \u2018target substances\u2019, that is, known contaminants. But the water might contain other compounds that we don\u2019t (yet) know about. For this reason, KWR developed a \u2018non-target\u2019 screening technique, with which we can detect unknown contaminants that can cause the malfunction of a wastewater treatment process.<\/p>\n<\/div>\n<p>The non-target screening makes use of high-resolution mass spectrometry to demonstrate the presence of a wide range of known and unknown substances at the same time. By using non-target screening to analyse a number of reference samples taken in the context of an emergency, we can identify the compounds in the samples. Using advanced data analysis, we can then establish which chemical compounds, or group of compounds, occur more in the emergency sample than they do in the reference samples. On the basis of the data produced by the mass spectrometer, we can then discover which substance is the possible cause of the disruption.<\/p>\n<p>In this manner KWR has twice already \u2013 specifically, in April 2016 and January 2017 \u2013 assisted in discovering the cause of the malfunction of the Baarle-Nassau wastewater treatment plant.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The cause of malfunctions in wastewater treatment plants (WWTPs) or industrial wastewater treatment plants (IWWTs) is often difficult to discover. An example of such a malfunction is the loss in nitrification capacity, that is, the degree to which&#8230;<\/p>\n","protected":false},"author":6,"featured_media":1355,"comment_status":"open","ping_status":"open","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-12053","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","gtag-drugs-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>KWR researchers discover cause of wastewater treatment malfunction - 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\/kwr-onderzoekers-achterhalen-oorzaak-falen-rioolwaterzuivering\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"KWR researchers discover cause of wastewater treatment malfunction - KWR\" \/>\n<meta property=\"og:description\" content=\"The cause of malfunctions in wastewater treatment plants (WWTPs) or industrial wastewater treatment plants (IWWTs) is often difficult to discover. An example of such a malfunction is the loss in nitrification capacity, that is, the degree to which...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.kwrwater.nl\/en\/actueel\/kwr-onderzoekers-achterhalen-oorzaak-falen-rioolwaterzuivering\/\" \/>\n<meta property=\"og:site_name\" content=\"KWR\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/KWRwater\/\" \/>\n<meta property=\"article:published_time\" content=\"2018-10-22T11:45:28+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-10-01T07:24:57+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.kwrwater.nl\/wp-content\/uploads\/2016\/05\/KWR-drugsonderzoek-RWZI-Utrecht-065_A5-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1707\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"KWR - YK\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@KWR_water\" \/>\n<meta name=\"twitter:site\" content=\"@KWR_water\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"KWR - YK\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.kwrwater.nl\/en\/actueel\/kwr-onderzoekers-achterhalen-oorzaak-falen-rioolwaterzuivering\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.kwrwater.nl\/en\/actueel\/kwr-onderzoekers-achterhalen-oorzaak-falen-rioolwaterzuivering\/\"},\"author\":{\"name\":\"KWR - YK\",\"@id\":\"https:\/\/www.kwrwater.nl\/en\/#\/schema\/person\/35e7ad3402a0f7700e3c8e2463ce6dd4\"},\"headline\":\"KWR researchers discover cause of wastewater treatment malfunction\",\"datePublished\":\"2018-10-22T11:45:28+00:00\",\"dateModified\":\"2021-10-01T07:24:57+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.kwrwater.nl\/en\/actueel\/kwr-onderzoekers-achterhalen-oorzaak-falen-rioolwaterzuivering\/\"},\"wordCount\":256,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.kwrwater.nl\/en\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.kwrwater.nl\/en\/actueel\/kwr-onderzoekers-achterhalen-oorzaak-falen-rioolwaterzuivering\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.kwrwater.nl\/wp-content\/uploads\/2016\/05\/KWR-drugsonderzoek-RWZI-Utrecht-065_A5-scaled.jpg\",\"articleSection\":[\"News\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.kwrwater.nl\/en\/actueel\/kwr-onderzoekers-achterhalen-oorzaak-falen-rioolwaterzuivering\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.kwrwater.nl\/en\/actueel\/kwr-onderzoekers-achterhalen-oorzaak-falen-rioolwaterzuivering\/\",\"url\":\"https:\/\/www.kwrwater.nl\/en\/actueel\/kwr-onderzoekers-achterhalen-oorzaak-falen-rioolwaterzuivering\/\",\"name\":\"KWR researchers discover cause of wastewater treatment malfunction - 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