Skip to main content

Biologically Engineered Biofilm Modifications for the Enhancement of Collection System Transformations and Impacts on BNR Wastewater Treatment

The full text article is not available for purchase.

The publisher only permits individual articles to be downloaded by subscribers.

or click here to sign up for a free trial


Increased influent RBCOD and heterotrophic plate counts coincided with the start of bioaugmentation in this study. Observed influent sulfide levels were also lower during bioaugmentation. RBCOD increases could potentially improve biological phosphorus or nitrogen removal. Lowered sulfides in the influent could lower corrosion and odors in the collection system and preliminary treatment/plant headworks.

The effects of nitrification inhibitor on influent BOD values was also investigated. CBODs were significantly lower than BODs for both influent and anaerobic zone BOD. This was true for both filtered and unfiltered (soluble) samples. The difference between BOD and CBOD increased during the summer months, and in addition nitrifiers were measured in influent BOD bottles not containing inhibitor. It seems likely that the reasons for the difference between influent BOD and CBOD was at least partially due to nitrification. In addition inhibition of BOD degradation by the nitrification inhibitor may also play a role. Albertsons (1995) hypothesis that the difference between influent BOD and CBOD is due to inhibited degradation of particulate BOD seems unlikely since soluble CBOD/BOD ratios were similar to values and trends observed for total CBOD/BOD ratios.

Document Type: Research Article


Publication date: January 1, 2006

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 These proceedings are not peer reviewed.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 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
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