{"id":86158,"date":"2026-11-02T10:45:39","date_gmt":"2026-11-02T09:45:39","guid":{"rendered":"https:\/\/www.kwrwater.nl\/?p=86158"},"modified":"2026-11-02T11:02:56","modified_gmt":"2026-11-02T10:02:56","slug":"first-global-protocol-for-monitoring-nitrous-oxide-emissions-launched","status":"publish","type":"post","link":"https:\/\/www.kwrwater.nl\/en\/actueel\/first-global-protocol-for-monitoring-nitrous-oxide-emissions-launched\/","title":{"rendered":"First Global Protocol for Monitoring Nitrous Oxide Emissions Launched"},"content":{"rendered":"
\n

Nitrous oxide (N\u2082O) is one of the largest sources of direct greenhouse gas emissions from wastewater treatment plants. Until now, the water sector has lacked a standardised method for measuring these emissions, making it difficult to compare data and track progress in reducing emissions. To address this, the Global Water Research Coalition (GWRC) launched the world’s first globally coordinated protocol for real-time monitoring and quantification of N\u2082O emissions at full-scale wastewater treatment plants. Johann Poinapen, Impact Leader Water for Clean Energy and a Circular Industry<\/a>, explains KWR’s contribution and the significance of this new guidance.<\/p>\n<\/div>\n

What was KWR’s specific role in the project, and why was it important to be involved in this international collaboration?<\/strong><\/p>\n

“KWR was directly involved in developing and reviewing the protocol – A Practical Protocol to Monitor and Quantify Nitrous Oxide (N2<\/sub>O) Emissions<\/a>. I contributed particularly to the work on monitoring-location design and case studies, and supported the wider initiation, execution and management of the project. KWR colleagues also contributed to the review process.”<\/p>\n

N\u2082O is a global challenge. That is precisely why international collaboration is so important. As a member of the GWRC<\/a>, KWR can combine Dutch experience with the knowledge of water utilities, researchers and practitioners from around the world. In this way, we contribute to a shared evidence base rather than a collection of separate national approaches. The protocol draws on experience from 30 case studies across 10 countries, giving it a strong practical foundation. The Netherlands via STOWA and KWR contributed to case studies in the protocol guidance document.<\/p>\n

The protocol is based on contributions from utilities and experts across multiple countries. What are the main challenges the protocol aims to solve for wastewater utilities that want to monitor and quantify N\u2082O emissions more consistently?<\/strong><\/p>\n

“The main challenge is that N\u2082O emissions are highly variable in both time and space, while utilities have historically used different monitoring locations, equipment, campaign durations and calculation approaches. This makes it difficult to compare results across plants and countries.<\/p>\n

The protocol therefore provides a harmonised framework for deciding where, how and for how long to monitor, and how emissions should be quantified, while remaining flexible enough to accommodate different plant configurations and both gas- and liquid-phase measurements.”<\/p>\n

“The strength of the protocol lies not only in its scientific foundation, but above all in its practical applicability. It helps organisations measure emissions in a consistent way, while still allowing for the specific circumstances of each individual facility.”\n\t\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t \"Johann\n\t\t\t\t <\/div>\n\t\t\t\t
\n\t\t\t\t Johann Poinapen<\/strong><\/cite><\/div><\/div><\/blockquote>\n

What new insights or practical guidance does the protocol offer to the sector, and do you recognise any questions or solutions discussed during the N\u2082O Day at KWR?<\/strong><\/p>\n

“A key strength is that the protocol is practical rather than purely academic. It provides guidance on monitoring-location selection, measurement approaches, campaign design and emission-factor calculation, while recognising that there is no single monitoring method suitable for every wastewater treatment plant.<\/p>\n

There is a strong connection with the discussions we had during the N\u2082O Day at KWR in September<\/a>. In particular, the need to understand when and why N\u2082O peaks occur, how monitoring should be combined with process and operational data, and how we move from measurement towards modelling, prediction, control and mitigation. These are exactly the questions the sector now needs to address.”<\/p>\n

Looking ahead, what impact do you expect this protocol to have on efforts to reduce greenhouse gas emissions from wastewater treatment, both in the Netherlands and internationally?<\/strong><\/p>\n

“I see the protocol as an important step from measurement towards mitigation. If utilities measure N\u2082O consistently, we can compare plants, identify high-emitting processes, develop more reliable emission factors, and determine which operational or technological interventions actually reduce emissions.<\/p>\n

For the Netherlands, it creates a common international reference while allowing Dutch operational experience and research to contribute back into future versions of the protocol. Internationally, it can strengthen benchmarking, greenhouse gas reporting, mitigation strategies, and eventually support more credible policy and progress towards climate-neutral wastewater treatment. Because the protocol is intended as a living framework, its value should increase as more utilities apply it and contribute new evidence.<\/p>\n

Ultimately, the real value of the protocol is not standardisation for its own sake; it is the creation of comparable evidence that enables the sector to move from simply measuring N\u2082O to understanding, predicting, and ultimately reducing it.”<\/p>\n","protected":false},"excerpt":{"rendered":"

Nitrous oxide (N\u2082O) is one of the largest sources of direct greenhouse gas emissions from wastewater treatment plants. Until now, the water sector has lacked a standardised method for measuring these emissions, making it difficult to compare data…<\/p>\n","protected":false},"author":50,"featured_media":78610,"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":[1806],"class_list":["post-86158","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-circulair-en"],"acf":[],"yoast_head":"\nFirst Global Protocol for Monitoring Nitrous Oxide Emissions Launched - 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\/first-global-protocol-for-monitoring-nitrous-oxide-emissions-launched\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"First Global Protocol for Monitoring Nitrous Oxide Emissions Launched - KWR\" \/>\n<meta property=\"og:description\" content=\"Nitrous oxide (N\u2082O) is one of the largest sources of direct greenhouse gas emissions from wastewater treatment plants. 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