Full-Scale Evaluation of Conventional Activated Sludge and MABR N2O emissions

The Danish Environmental Protection Agency, 2019

Nitrous oxide (N2O) is a greenhouse gas with a global warming potential 265 times stronger than carbon dioxide on a 100-year time horizon (Eickemeier et al., 2014) and therefore, even emitted in small amounts, it can contribute significantly to global warming. In addition, nitrous
oxide is acknowledged as an important threat to the ozone layer (Ravishankara et al., 2009). N2O is an undesired bioproduct emitted during the biological nitrogen removal process in wastewater treatment systems and despite the recent efforts in understanding nitrous oxide
emissions from wastewater treatment, data from full-scale plants is still scarce.

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