Skip to main content

Development of Full-scale Sizing Criteria from Tertiary Pilot Testing Results to Achieve Ultra-low Phosphorus Limits at Innisfil, Ontario

Buy Article:

$17.50 plus tax (Refund Policy)

Abstract:

The Town of Innisfil, Ontario, is served by the Lakeshore Water Pollution Control Plant (LWPCP) which has a rated capacity of 14,370 m3/d and a current average flow of about 9,000 m3/d. The plant uses an extended aeration activated sludge system followed by filters. Alum is added to the aeration basin effluent mixed liquor to reduce the effluent total phosphorus (TP) concentration to approximately 0.09 mg/L. As its capacity is expanded, the LWPCP will need to achieve lower effluent TP concentrations. The following tertiary phosphorus removal processes were tested:

Alum addition followed by ultra-filtration membranes


Ferric chloride addition with reactive filtration series system


Ferric sulfate and alum addition with series filtration


Ferric chloride and polymer addition with ballasted flocculation and filtration


All of the processes achieved effluent TP concentrations of 0.03 mg/L and lower. This paper documents the performance results and scale-up considerations for each process.

Keywords: Ultra-low phosphorus limits; ballasted flocculation; design criteria; membrane filtration; series filtration; tertiary phosphorus removal

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864710798158391

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 These proceedings are not peer reviewed.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
wef/wefproc/2010/00002010/00000016/art00006
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