Estimation of nitrous oxide emissions (GHG) from wastewater treatment plants using closed-loop mass balance and data reconciliation

2012 ◽  
Vol 29 (9) ◽  
pp. 1123-1128 ◽  
Author(s):  
JungJin Lim ◽  
Boddupalli Sankarrao ◽  
TaeSeok Oh ◽  
MinJung Kim ◽  
OnYu Kang ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Wastewater Treatment ◽  
Mass Balance ◽  
Closed Loop ◽  
Wastewater Treatment Plants ◽  
Data Reconciliation ◽  
Nitrous Oxide Emissions

Assessing potential impacts of phosphate precipitation on nitrous oxide emissions and the carbon footprint of wastewater treatment plants

2018 ◽  
Vol 40 (16) ◽  
pp. 2107-2113 ◽  
Author(s):  
Pascal Kosse ◽  
Manfred Lübken ◽  
Torsten C. Schmidt ◽  
Ruben-Laurids Lange ◽  
Marc Wichern
Keyword(s):  
Nitrous Oxide ◽  
Wastewater Treatment ◽  
Carbon Footprint ◽  
Wastewater Treatment Plants ◽  
Nitrous Oxide Emissions

scholarly journals Nitrous oxide emissions from wastewater treatment processes

2012 ◽  
Vol 367 (1593) ◽  
pp. 1265-1277 ◽  
Author(s):  
Yingyu Law ◽  
Liu Ye ◽  
Yuting Pan ◽  
Zhiguo Yuan
Keyword(s):  
Nitrous Oxide ◽  
Wastewater Treatment ◽  
Wastewater Treatment Plants ◽  
High Water ◽  
Nitrous Oxide Emissions ◽  
Ammonia Oxidizing Bacteria ◽  
Plant Design ◽  
Operational Conditions ◽  
Nitrifier Denitrification ◽  
Wastewater Treatment Systems

Nitrous oxide (N 2 O) emissions from wastewater treatment plants vary substantially between plants, ranging from negligible to substantial (a few per cent of the total nitrogen load), probably because of different designs and operational conditions. In general, plants that achieve high levels of nitrogen removal emit less N 2 O, indicating that no compromise is required between high water quality and lower N 2 O emissions. N 2 O emissions primarily occur in aerated zones/compartments/periods owing to active stripping, and ammonia-oxidizing bacteria, rather than heterotrophic denitrifiers, are the main contributors. However, the detailed mechanisms remain to be fully elucidated, despite strong evidence suggesting that both nitrifier denitrification and the chemical breakdown of intermediates of hydroxylamine oxidation are probably involved. With increased understanding of the fundamental reactions responsible for N 2 O production in wastewater treatment systems and the conditions that stimulate their occurrence, reduction of N 2 O emissions from wastewater treatment systems through improved plant design and operation will be achieved in the near future.

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