Gaseous nitrogen and carbon emissions from a full-scale deammonification plant.
The aim of this work was to give a quantitative description of the gaseous nitrogen and carbon emissions of a full-scale deammonification plant (DEMON system). Deammonification accounted for the net carbon sequestration of 0.16 g CO2/g NO2-N. Both nitrogen dioxide (NO2) and nitric oxide (NO) were minor trace gases (<0.1% nitrogen output). However, in comparison, the nitrous oxide (N2O) emission (1.3% nitrogen output) was significant. The global warming potential of the N2O emissions from the DEMON were similar to those found in conventional simultaneous nitrification/denitrification systems; however, CO2 emissions in the investigated system were significantly lower, thereby lessening the overall environmental effect. This was the first time such an analysis has been performed on a DEMON system.
Weissenbacher
Norbert
N
Institute of Sanitary Engineering and Water Pollution Control, Department of Water-Atmosphere-Environment, University of Natural Resources and Applied Life Sciences Vienna, Vienna, Austria. norbert.weissenbacher@boku.ac.at
Takacs
Imre
I
Murthy
Sudhir
S
Fuerhacker
Maria
M
Wett
Bernhard
B
D000641:Ammonia / Q000737:chemistry*; D002244:Carbon / Q000032:analysis* / Q000737:chemistry; D002245:Carbon Dioxide / Q000032:analysis / Q000737:chemistry; D004785:Environmental Pollutants / Q000032:analysis* / Q000737:chemistry; D009569:Nitric Oxide / Q000032:analysis / Q000737:chemistry; D009584:Nitrogen / Q000032:analysis* / Q000737:chemistry; D009585:Nitrogen Dioxide / Q000032:analysis / Q000737:chemistry; D018508:Water Purification
D004785:Environmental Pollutants; D002245:Carbon Dioxide; D009569:Nitric Oxide; D002244:Carbon; D000641:Ammonia; D009584:Nitrogen; D009585:Nitrogen Dioxide