Going low on N2O with multiple measurement methods: PRESENTATION ONLY
Joe Kenyon, United Utilities, UK
Amanda Lake, Jacobs, UK
(Free)
Greenhouse gases and wastewater treatment
Process Emissions make up 70% of our reported direct emissions
Nitrous oxide (N2O) GWP 298*
- Produced during secondary treatment as part of nitrification & denitrification processes
- Climate Change Committee (CCC): N2O is a major challenge that needs to be addressed. After agriculture, wastewater treatment is the main global source of anthropogenic N2O emissions
- Current sector reporting methodology (Carbon Accounting Workbook) is likely to under report impact of process emissions
- Alternative reporting method predicts higher impact, using emissions factors from Intergovernmental Panel on Climate Change (IPCC)