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Assessment of aeration control strategies for biofilm-based partial nitritation/anammox systems

Lookup NU author(s): Dr Matthew WadeORCiD



The objective of this work was to compare the nitrogen removal in mainstream, biofilm-based partial nitritation anammox (PN/A) systems employing (1) constant setpoint dissolved oxygen (DO) control, (2) intermittent aeration, and (3) ammonia-based aeration control (ABAC). A detailed water resource recovery facility (WRRF) model was used to study the dynamic performance of these aeration control strategies with respect to treatment performance and energy consumption. The results show that constant setpoint DO control cannot meet typical regulatory limits for total ammonia nitrogen (NHx-N). Intermittent aeration shows improvement but requires optimisation of the aeration cycle. ABAC shows the best treatment performance with the advantages of continuous operation and over 20% lower average energy consumption as compared to intermittent aeration.

Publication metadata

Author(s): Schraa O, Rosenthal A, Wade MJ, Rieger L, Miletic I, Alex J

Publication type: Article

Publication status: Published

Journal: Water Science and Technology

Year: 2020

Volume: 81

Issue: 8

Pages: 1757-1765

Print publication date: 15/04/2020

Online publication date: 07/04/2020

Acceptance date: 31/03/2020

Date deposited: 02/07/2020

ISSN (print): 0273-1223

ISSN (electronic): 1996-9732

Publisher: I W A Publishing


DOI: 10.2166/wst.2020.174


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