If you are experiencing problems downloading PDF or HTML fulltext, our helpdesk recommend clearing your browser cache and trying again. If you need help in clearing your cache, please click here . Still need help? Email help@ingentaconnect.com

Process Simulation to Optimize Nitrogen Removal in Intermittent Aeration Activated Sludge

$17.50 plus tax (Refund Policy)

Buy Article:

Abstract:

A potential approach to retrofit conventional activated sludge plants to achieve biological nitrogen removal is to utilize an intermittent aeration strategy within a single reactor. The feasibility of this approach was assessed through a series of simulations using Activated Sludge Model No. 1. Simulation results indicated that up to 90% nitrogen removal could be attained with appropriate selection of the cycle time and the duration of its anoxic phase. Maximum nitrogen removal could be achieved with cycle time of 2 – 3 h, 40 – 50 % of which should be under anoxic conditions. A hydraulic residence time of 10 – 16 h was adequate to achieve these results. The solids residence time was 15 – 25 d to ensure that a stable population of nitrifying organism would be established.

Keywords: Activated sludge; biological nitrogen removal; denitrification; nitrification; process simulation

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864710798208115

Publication date: January 1, 2010

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 These proceedings are not peer reviewed.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
  • ingentaconnect is not responsible for the content or availability of external websites

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect 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