The water sector is a steward of the nitrogen cycle, with a key function in nitrification and nitrogen removal in water resource recovery facilities (WRRFs). It remains a significant source of nutrient pollution, and increasing requirements for nitrogen removal mean significant resources (energy, supplemental carbon) as well as significant risks and opportunities around greenhouse gases.

This webinar provided an overview of the nitrogen cycle in the context of the water sector, with a focus on emerging and innovative centralised and decentralised approaches to treatment and nitrogen management that support the water sector’s role in a circular economy within planetary boundaries.

Watch the recording here: https://www.icheme.org/knowledge-networks/communities/special-interest-groups/water/events/30-04-2025-planetary-boundaries-series-nitrogen/