Critical Grit Removal Design Considerations for Retrofits and Additions at Existing Facilities

$17.50 plus tax (Refund Policy)

Buy Article:

Abstract:

Many wastewater treatment facilities have aging or inefficient grit removal systems with excess solids build-up occurring in downstream sedimentation tanks, channels, aeration tanks and digesters with resulting abrasive wear on solids handling pumps and additional maintenance for cleaning. Inefficient grit systems also lead to a grit product that contains excess organics with odors in the materials handling areas.

Retrofits and additions can often include limited space for construction of new processes, difficulty in maintaining existing grit removal during construction, phasing of tie-ins, and hydraulic limitations. The objective of this paper is to review critical grit removal design considerations including grit characterization, grit removal technologies, hydraulic considerations, grit pumping and conveyance, grit washing, and grit storage. Case studies at a wide range of facilities will be presented to illustrate the issues.

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864712811741133

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 These proceedings are not peer reviewed.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

Tools

Favourites

Share Content

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