Skip to main content

Critical Role of Aerobic Uptake in Biological Phosphorus Removal

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial


The use of biological phosphorus removal (BPR) to remove phosphorus (P) from municipal wastewaters is well-established, and especially in recent years, there has been a significant increase in the number of utilities practicing BPR. The basic BPR mechanism includes two distinct steps: anaerobic P release, and aerobic P uptake. However, BPR design and optimization efforts have typically focused on the anaerobic release step of the process, with a lot of attention being paid to maximizing anaerobic P-release through augmentation with volatile fatty acids (VFAs) and by minimizing interferences from nitrate and dissolved oxygen. In contrast, there is little published work, especially from full-scale wastewater plants, on optimization of the aerobic uptake step of the BPR process. This paper presents new information on the significance of the aerobic uptake step in the BPR process, based on full-scale experimentation conducted at the Durham Advanced Wastewater Treatment Facility (Durham AWTF), run by Clean Water Services. Comprehensive side-by-side sampling and profiling was conducted on four different reactor configurations in 2005 as part of a BPR optimization study. A major outcome of this study was an improved understanding of the significance of aerobic uptake in BPR. Aerobic uptake was found to be the critical step in the process, with the P uptake in the initial aerobic zones having a particularly significant impact on the ability to achieve very low P levels reliably.

Document Type: Research Article


Publication date: 2006-01-01

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more