Skip to main content

Interactions Between Suspended Biomass and Biofilm in Integrated Fixed-Film Activated Sludge (IFAS) Bioreactors: Process Design Implications for IFAS Systems

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial


A sensitivity analysis is conducted using a process model that considers the biofilm biochemical transformation processes, mass transfer resistances internal and external to the biofilm; and bacterial competition for space inside the biofilm along with the kinetics of the suspended growth component of IFAS systems. Results of the sensitivity analysis are compared with field trial observations. The paper proposes a design convention that considers the calculated nitrification safety factor to determine the configuration of the IFAS system design.

Keywords: IFAS Design; Kinetic Interactions; Nitrification Safety Factor; Process Modeling

Document Type: Research Article


Publication date: 2010-01-01

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 These proceedings are not peer reviewed.

    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 ContentFree content
  • Partial Free ContentPartial Free content
  • New ContentNew content
  • Open Access ContentOpen access content
  • Partial Open Access ContentPartial Open access content
  • Subscribed ContentSubscribed content
  • Partial Subscribed ContentPartial Subscribed content
  • Free Trial ContentFree 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