Skip to main content

A Distillery By-Product as an External Carbon Source for Enhancing Denitrification in Mainstream and Sidestream Treatment Processes

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

This paper presents preliminary results of a 3-year (2010-2012) project concerning the use of fusel oil as an “alternative” carbon source for denitrification in the mainstream and sidestream treatment processes. The investigations were conducted at the “Wschod” wastewater treatment plant (WWTP) in the city of Gdansk (northern Poland) and comprised two kinds of batch experiments as well as acclimation of process biomass to external carbon sources. In the conventional nitrate utilization rate (NUR) measurements (one-phase experiments under anoxic conditions) with fusel oils from two local distilleries and other carbon sources (settled wastewater and ethanol), the highest NURs were observed for a readily biodegradable fraction of the settled wastewater. The rates observed for the fusel oils (= 1.4-1.7 g N/(kg VSS h)) were similar to both ethanol and slowly biodegradable fraction of the settled wastewater. When adding the fusel oils at the beginning of the anoxic phase preceded by an anaerobic phase (two-phase experiments), the range of observed NURs, i.e. 2.5-2.9 g N/(kg VSS·h), was comparable to the reference tests without addition of external carbon sources. The addition of fusel oil and ethanol resulted in a significant enhancement of the denitrification efficiency in lab-scale sequencing batch reactors (SBRs) treating reject water in the “fill-anddraw” mode. The NURs were continuously increasing from <1 g N/(kg VSS·h) to >10 g N/(kg VSS·h) over the entire 4-week operational period. The overall TN reduction efficiency achieved the level of approximately 90%.
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: Activated sludge; batch test; denitrification; external carbon source; nutrient removal; sidestream treatment

Document Type: Research Article

Publication date: 2011-01-01

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 These proceedings are not peer reviewed.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