{"id":81998,"date":"2025-10-06T14:13:03","date_gmt":"2025-10-06T12:13:03","guid":{"rendered":"https:\/\/www.kwrwater.nl\/?p=81998"},"modified":"2025-10-09T16:58:54","modified_gmt":"2025-10-09T14:58:54","slug":"mobilising-the-water-sector-to-address-potent-n%e2%82%82o-emissions","status":"publish","type":"post","link":"https:\/\/www.kwrwater.nl\/en\/actueel\/mobilising-the-water-sector-to-address-potent-n%e2%82%82o-emissions\/","title":{"rendered":"Mobilising the Water Sector to Address Potent N\u2082O Emissions\u00a0"},"content":{"rendered":"
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At the Nordic Wastewater Conference (NORDIWA) 2025 in Oslo, KWR Water Research Institute convened international experts for a focused and interactive session: \u201cTaming the Laughing Gas: Serious N\u2082O Mitigation Approaches in WWTPs.\u201d Additionally, KWR presented insights during two technical presentations that focused on key aspects of N\u2082O emission management.<\/p>\n<\/div>\n

As climate targets become increasingly stringent, the water sector is turning its attention to a potent but often under-recognised greenhouse gas: nitrous oxide (N\u2082O). With a global warming potential 273 times greater than CO\u2082, N\u2082O \u2014 colloquially known as \u201claughing gas\u201d \u2014 poses a serious challenge for wastewater utilities striving for climate neutrality.<\/span>\u00a0<\/span><\/p>\n

Workshop \u201cTaming the Laughing Gas\u201d<\/h2>\n

The 90-minute workshop at NORDIWA<\/a> brought together utilities, researchers, policymakers, and technology providers to explore full-scale strategies for monitoring, modelling, and mitigating N\u2082O emissions \u2014 and to envision a future in which climate-neutral wastewater treatment is standard practice.<\/span>\u00a0<\/span><\/p>\n

Opening the session, Johann Poinapen (KWR) emphasised the urgency of addressing N\u2082O emissions: <\/span>\u201cOur sector has made significant progress in improving effluent quality. However, N\u2082O remains the \u2018sleeping giant\u2019 of wastewater emissions. Achieving climate and CO\u2082 neutrality requires a targeted, science-based approach to this gas.\u201d<\/em><\/span>
\n<\/em>While biological nitrogen removal processes are increasingly well understood, N\u2082O production remains a complex and variable phenomenon. Real-time monitoring technologies are still evolving, regulatory frameworks are lagging, and mitigation strategies are often site-specific. Nevertheless, the session demonstrated that viable solutions are emerging \u2014 and sector-wide momentum is building.<\/span>\u00a0<\/span><\/p>\n

Four Countries Share Practical Experience<\/h2>\n

The workshop featured contributions from leading practitioners in the Netherlands and the Nordic region, highlighting concrete approaches to N\u2082O monitoring and mitigation:<\/span>\u00a0<\/span><\/p>\n