Model-based evaluation of the role of Anammox on nitric oxide and nitrous oxide productions in membrane aerated biofilm reactor

Ni, Bing-Jie, Smets, Barth F., Yuan, Zhiguo and Pellicer-Nacher, Carles (2013) Model-based evaluation of the role of Anammox on nitric oxide and nitrous oxide productions in membrane aerated biofilm reactor. Journal of Membrane Science, 446 332-340. doi:10.1016/j.memsci.2013.06.047


Author Ni, Bing-Jie
Smets, Barth F.
Yuan, Zhiguo
Pellicer-Nacher, Carles
Title Model-based evaluation of the role of Anammox on nitric oxide and nitrous oxide productions in membrane aerated biofilm reactor
Journal name Journal of Membrane Science   Check publisher's open access policy
ISSN 0376-7388
1873-3123
Publication date 2013-11
Year available 2013
Sub-type Article (original research)
DOI 10.1016/j.memsci.2013.06.047
Volume 446
Start page 332
End page 340
Total pages 9
Place of publication Amsterdam, The Netherlands
Publisher Elsevier
Collection year 2014
Language eng
Formatted abstract
A multispecies one-dimensional biofilm model considering nitric oxide (NO) and nitrous oxide (N2O) productions for membrane aerated biofilm reactor (MABR) that remove nitrogen autotrophically through aerobic ammonia oxidation followed by Anammox is used to study the role of Anammox activity on the total nitrogen (TN) removal and the productions of NO and N2O. The model is applied to evaluate how periodic aeration as a control parameter reduces NO and N2O production but maintains high TN removal in MABR. The simulation results show over 3.5% of the removed TN could be attributed to NO and N2O production in MABR under the operational conditions optimal for TN removal (72%). An analysis of factors governing the Anammox activity in MABR shows that enhancing Anammox activity not only helps to achieve a high level of nitrogen removal but also reduces NO and N2O productions. Comparison of aeration strategies (periodic aeration vs. continuous aeration) reveals that periodic aeration can reduce NO and N2O production while maintaining a high level of nitrogen removal through promoting Anammox growth. Application of periodic aerations with different cycle frequencies to the MABR indicates that an increase in the cycle frequency of the periodic aeration can further maximize TN removal and minimize the NO and N2O production in membrane aerated biofilm. The information of this paper will be useful for understanding the indirect role of Anammox on NO and N2O productions and for optimizing the design and operation of MABR systems.
Keyword Anammox
Biofilm
Modeling
Nitric oxide
Nitrous oxide
Periodic aeration
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2014 Collection
Advanced Water Management Centre Publications
 
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Created: Thu, 11 Jul 2013, 15:00:58 EST by Bing-Jie Ni on behalf of Advanced Water Management Centre