Skip to main content

THE COUPLING OF TWO BIOLOGICAL PHOSPHORUS REMOVAL PROCESSES TO INCREASE OPERATIONAL FLEXIBILITY AND IMPROVE PERFORMANCE

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

Abstract:

The Truckee Meadows Water Reclamation Facility in Reno, Nevada, operates an air activated sludge plant with a sidestream PhoStrip process for phosphorus (P) removal. Since it began operations in 1981, the PhoStrip process has consistently met its effluent P discharge limit. However, filamentous foaming in the aeration tanks and anaerobic digesters has been a persistent problem. To combat this nuisance, a hybrid operational scheme was developed by coupling features of the existing PhoStrip process and more conventional biological phosphorus removal (BPR) processes. This Coupled BPR process included an anaerobic selector at the front end of the aeration tank, in addition to the rest of the PhoStrip process. Process modeling was used to fine-tune selected operational parameters. Full-scale testing of the process was conducted between March and December 2000. Results from the full-scale tests have been very promising. Specifically, a) the foaming problem has been brought under control; b) there has been no adverse impact on P-removal performance; c) internal recycle flows have been reduced; and d) lime usage in the PhoStrip process has been reduced. Overall, the Coupled BPR process has increased the operational flexibility of the plant as well as improved performance.

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864701790860353

Publication date: January 1, 2001

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 These proceedings are not peer reviewed.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
wef/wefproc/2001/00002001/00000011/art00020
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

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