Nitrous oxide emissions from one-step partial nitritation/anammox processes
(English)Manuscript (preprint) (Other (popular science, discussion, etc.))
Measurements of nitrous oxide were made at pilot and full scale plants to evaluate greenhouse gas emissions from one-step partial nitritation/anammox processes applied in moving bed biofilm reactors (MBBRs) treating reject water. It was found that 0.51-1.29% and 0.35-1.33 % of the total nitrogen loads in the pilot and full scale reactor, respectively, were emitted as nitrous oxide. Between 80-90% of nitrous oxide emissions were in gaseous form and the rest amount was found in the reactor effluent; over 90% of nitrous oxide emissions occurred in the aerated period and less than 8% in the non-aerated period in the full scale study. Nitrous oxide productions/consumptions were closely related to aeration and the nitrogen loads applied in the system.
Gas phase, Liquid phase, Moving Bed Biofilm Reactor (MBBR), Nitrous oxide emission, Partial nitritation/anammox process
Engineering and Technology
Research subject Civil and Architectural Engineering
IdentifiersURN: urn:nbn:se:kth:diva-186031OAI: oai:DiVA.org:kth-186031DiVA: diva2:924972
QC 201605242016-04-292016-04-292016-05-24Bibliographically approved