Skip to main content

Prenitrification of Recycle Streams at Lincoln's Theresa Street Wastewater Treatment Facility

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

Abstract:

A prenitrification basin has been implemented at the Lincoln, Nebraska Theresa Street Wastewater Treatment Facility as part of recently completed plant improvements to obtain expanded nitrification capacity. The prenitrification basin is used for treatment of high strength recycle streams from solids processing operations. These streams, occurring intermittently, recycle approximately 30 to 40 percent of the ammonia received at the facility. Recycle streams are combined with a portion of return activated sludge in the aerated prenitrification basin resulting in a decrease of ammonia from over 500 mg/l in the recycle to 10 to 30 mg/l prior to combining with the main plant flow.

The prenitrification basin has been successful and eliminating the shock load of the recycle streams and the ammonia bleed-through effect from these streams. Operational strategies are available to address performance optimization as well as alkalinity, pH, dissolved oxygen, and other environmental concerns. Approximately 80% ammonia removal has been obtained in the prenitrification basin with hydraulic detention times in the prenitrification basin as low as 3.2 hours.

Document Type: Research Article

DOI: https://doi.org/10.2175/193864708788809644

Publication date: 2008-01-01

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 These proceedings are not peer reviewed.

    A subscription to the Proceedings of the Water Environment Federation includes access to most papers presented at the annual WEF Technical Exhibition and Conference (WEFTEC) and other conferences held since 2000. Subscription access begins 12 months after the event and is valid for 12 months from month of purchase. A subscription to the Proceedings of the Water Environment Federation is included in Water Environment Federation (WEF) membership.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access. Access begins 12 months after the conference or event
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Learn about the many other WEF member benefits and join today
  • 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
X
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