Skip to main content


Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial


The Lawrence Wastewater Treatment Plant (WWTP) is being expanded and improved to accommodate the City of Lawrence, Kansas, future growth, maintain compliance with new regulatory requirements, and meet facility needs up through the design year 2020. To accommodate future projected storm flows or sanitary sewer overflows (SSO), an excess flow facilities consisting of a 40-mgd ballasted flocculation system will be constructed to be directly discharge to the Kansas River. During the full-scale testing of the ballasted flocculation system, several testing issues had to be resolved, including the development of a simulated storm flow for testing, which was 2.5 times greater than the normal plant flow. The peak flow was generated while maintaining a small flow to the existing plant process. During the optimization and process performance test, foam was generated at the plant's outfall, which discharged into the Kansas River casuing the testing to be halted. The foam was a result of the operation of the ballasted flocculation facilities and surfactants within Lawrence wastewater flow. This presentation will provide details on the development of the flow to the SSO facility for testing and the resolution of foaming issues associated with the operation of the excess flow facilities.

Document Type: Research Article


Publication date: 2003-01-01

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 These proceedings are not peer reviewed.

    A subscription to the Proceedings of the Water Environment Federation includes access to most papers presented at the annual WEF Technical Exhibition and Conference (WEFTEC) and other conferences held since 2000. Subscription access begins 12 months after the event and is valid for 12 months from month of purchase. A subscription to the Proceedings of the Water Environment Federation is included in Water Environment Federation (WEF) membership.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access. Access begins 12 months after the conference or event
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Learn about the many other WEF member benefits and join today
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed 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