Skip to main content

BOD and Total Nitrogen Removal from Wastewater Using Microbial Fuel Cells

Buy Article:

$9.50 plus tax (Refund Policy)

Or sign up for a free trial

We evaluated two microbial fuel cell (MFC) configurations that potentially can be used to remove BOD and total nitrogen from wastewater. The first was a two-chamber MFC with a denitrifying biocathode, where exoelectrogenic bacteria used the cathode as an electron donor and nitrate as the electron acceptor. This system could be used for tertiary denitrification of wastewater. Denitrification rates obtained in this system were 26 gN/m3-day, based on the cathode liquid volume, or 4.6 gN/m2-day, based on the estimated surface area of graphite granules in the cathode compartment. The biocathode revealed low microbial diversity and clear differences with the anode microbial community. The second was a plug flow configuration, where influent wastewater first passed through an anode compartment and then through a cathode compartment. This type of system could be retrofitted into an activated sludge tank. In the cathode compartment, nitrifying biofilms growing on air-filled hollow-fiber membranes (HFMs) were alternated with denitrifying biocathodes, accomplishing nitrification and denitrification. This configuration achieved a power density of 667mW/m3 (11 mW/m2 cathode). The nitrification fluxes were up to 1.1g NH4 + – N/m2 HFM/d, which is comparable to other hollow fiber membrane based processes, and denitrification fluxes were up to 0.5 g NO3 – N/m2 cathode/d. The results suggest that these MFC configurations may be suitable for removing BOD and TN from wastewater, concurrent with electricity production.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Data/Media
No Metrics

Keywords: Denitrification; Microbial Fuel Cells; Nitrification; Sustainable Wastewater Treatment

Document Type: Research Article

Publication date: 2009-01-01

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 These proceedings are not peer reviewed.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