Skip to main content

POLICY AND SCIENCE EVALUATING THE BIOAVAILABILITY OF WWTP DISSOLVED ORGANIC NITROGEN AND PERMIT COMPLIANCE IMPLICATIONS

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

Abstract:

Total maximum daily loads (TMDLs), waste load allocations (WLAs), and National Pollution Discharge Elimination System (NPDES) permits for total nitrogen (TN) generally do not distinguish between organic and inorganic forms of nitrogen. Because many wastewater treatment plants (WWTPs) employ biological nutrient removal systems, including nitrification/denitrification for inorganic nitrogen removal, dissolved organic nitrogen (DON) can comprise a significant TN in the effluent. The Truckee Meadows Water Reclamation Facility (TMWRF) in Reno, Nevada, is facing future compliance issues with the established TN WLA in its NPDES permit. Recent studies showed that DON comprised approximately 80 percent of the TN in the TMWRF effluent that is discharged to the Truckee River. A 10-day bench scale bioavailability study was conducted to assess the fate of TMWFR effluent DON in the Truckee River system. Results showed that DON from the treatment plant was much less bioavailable than inorganic nitrogen species and that in general, initial and final DON concentrations were not statistically different, and that there was not sufficient evidence to suggest that the algal biomass was better sustained when exposed to treatment plant DON. However, additional work needs to be done to understand the observed variability in DON concentrations throughout the study duration and to further investigate changes in the algal biomass. The study provided support for future investigations of DON bioavailability.

Document Type: Research Article

DOI: https://doi.org/10.2175/193864703784641504

Publication date: 2003-01-01

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 These proceedings are not peer reviewed.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
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