Skip to main content

A Review of Vortex Grit Basin Design

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial


Due to the challenges associated with sampling, and the low priority often bestowed on grit removal, good data on grit removal in vortex grit basins is surprisingly rare. A review of experimental and full scale plant results, mathematical models and CFD model results were undertaken with the goal of identifying a common separating mechanism in vortex grit basins. Finding such a mechanism would lead to a mathematical model or equation that can be used for the design of vortex grit basins. Analysis of grit basins show that centrifugal forces are negligible and intricate flow patterns do not exist. Sedimentation under the influence of gravity is the main mechanism for grit removal in vortex grit basins. CFD modeling and the available data support this conclusion. Due to the high tangential velocity introduced by the influent flow, some allowance must be made to accommodate the resulting turbulence. Some mathematical models include such allowance, but the allowance has not been fully quantified. This is a key requirement for future research. CFD modeling is a tool that would allow for optimization of grit basin design, particularly for those parameters, such as outlet configuration, that cannot be easily included in a mathematical analysis. Suggestions are provided for other parameters that form part of vortex grit basin design.

Document Type: Research Article


Publication date: January 1, 2012

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 These proceedings are not peer reviewed.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

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
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