Skip to main content

PILOT-SCALE PERFORMANCE OF THE MBBR PROCESS AT THE CROW CREEK WWTP, CHEYENNE, WYOMING

Buy Article:

$9.50 plus tax (Refund Policy)

Or sign up for a free trial

The Cheyenne Board of Public Utilities (BOPU) needs to meet new ammonia limits and address the likely need for nitrogen and phosphorus removal within the next 10 to 15 years at their Crow Creek wastewater treatment plant (WWTP). Meeting the new ammonia limits and positioning for future nutrient removal presents a special challenge since the BOPU desires to minimize staffing levels at the Crow Creek WWTP. Historically, just one operator has been assigned to this facility.

The Crow Creek WWTP's existing trickling filter (TF) system was determined to be not well-suited to meet effluent ammonia limits during the winter months, nor for positioning the WWTP for meeting nutrient limits in the future. Results of a process evaluation determined that the best overall approach for Crow Creek was to abandon the TFs and construct a single-pass, multi-stage moving bed biofilm reactor (MBBR) system to reduce biochemical oxygen demand (BOD), ammonia (NH4- N), and total inorganic nitrogen (TIN). Phosphorus removal will be added in the future via addition of a tertiary treatment step such as metal-salt addition followed by sand filtration.

Full-scale MBBR facilities in a multi-stage configuration similar to that designed for Crow Creek WWTP have been effective in treating municipal wastewater in Europe. However both the BOPU and Black & Veatch (B&V) felt that a site-specific pilot study was warranted. Accordingly, an onsite pilot study was conducted for five months to confirm that the sizing parameters and conditions used for the initial design were sufficient to meet effluent NH4-N and TIN removal objectives. This paper presents the project background and pilot study methodology, the results and findings gleaned from the study, and the adjustments made to the final design as a result of the pilot work.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Data/Media
No Metrics

Document Type: Research Article

Publication date: 2003-01-01

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