Skip to main content

OXYGEN TRANSFER IN A BIOLOGICAL AERATED FILTER

Buy Article:

$9.50 plus tax (Refund Policy)

Or sign up for a free trial

The mass-transfer characteristics of a submerged-media biological aerated filter have been determined over a wide range of gas and liquid flow rates. The mass-transfer coefficients were measured using the nitrogen stripping method and were found to increase as both gas and liquid superficial velocities increase, with values ranging from approximately 80 to 500 h−1. Dynamic gas holdup was determined as the difference between total and stagnant gas holdup. The stagnant holdup was constant at about 4%, while the dynamic holdup increased from about 1% at the lowest gas flow rate to 3% at the highest gas flow rate. Further experiments will be conducted to determine the temperature dependence of the mass-transfer coefficient as well as the “dirty-water” correction factors. In the longer term, the biological uptake rate of oxygen from the water will also be measured. By evaluating the rates of oxygen supply and demand in the BAF, the rate-limiting process can be identified, and the knowledge used to optimize system performance.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Document Type: Research Article

Publication date: 01 January 2002

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 These proceedings are not peer reviewed.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
X
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