Skip to main content

Kinetic/Half-saturation Coefficient Considerations for Post Denitrification MBBR

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

Abstract:

To better understand the robustness of MBBR post denitrification process to achieve very low level of NOx-N < 1 mg/L, pilot was implemented at the Blue Plains AWTP. It was important to understand the limitations of the substrate, expressed as Ks (half-saturation coefficient) on the overall denitrification rates. Total of four 100-gallon anoxic pilot reactors were used for this testing. SDNR was estimated by measuring the rate of consumption of NOx-N over time. At an ambient temperature of 17°C, Ks,NOx-N (Ks for nitrate limited test) was 2.5 mg/L on average, and Ks,bsCOD (Ks for bsCOD limited test) was 6.5 mg/L. Ks,NOx-N remained fairly constant during the cold temperature period (13.5°C) while Ks,bsCOD concentration was not a definitive finding. Insitu SDNR data were used to develop a model for the MBBR system, based on the double Monod relationship. Half-saturation coefficient was found to be a very important design consideration for fixed film polishing application.

Keywords: ENR; Half-saturation; Kinetic Limitation; Limit of Technology (LOT); Moving Bed Biofilm Reactor (MBBR); Post Denitrification

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864709802770027

Publication date: January 1, 2009

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 These proceedings are not peer reviewed.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
wef/wefproc/2009/00002009/00000015/art00057
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

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