Skip to main content

Sustaining Siphons Subsequent to Sewer Separation

The full text article is not available for purchase.

The publisher only permits individual articles to be downloaded by subscribers.

or click here to sign up for a free trial


Sewer separation provides many benefits to the receiving water and to the treatment facility. However, designers must be cognizant of potential negative impacts of reduced flows and velocities on downstream pipes, particularly siphons.

This paper reviews siphon design principles, discusses the problem presented by sewer separation, and, through the use of a case study from Chicopee, Massachusetts, provides a potential solution. This case study reviews the installation and performance of North America's first Hydroflush GS flush-cleaning device, winner of the WEF 2007 Innovative Technology Award - Collection Systems. Continuous flow monitoring in the interceptor sewer has provided several months of data from which to compare flows and velocities in the siphons, before and after sewer separation, with and without the flush-cleaning device.

Keywords: CSO; Flushing; Sewer Separation; Siphon

Document Type: Research Article


Publication date: January 1, 2009

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 These proceedings are not peer reviewed.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

Access Key

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