Skip to main content

A METHOD FOR TESTING NITRIFICATION INHIBITION CHARACTERISTICS (NIC) IN WASTEWATER

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

As water quality standards become stricter, more wastewater treatment facilities will be required to implement Limit of Technology (LOT) nutrient removal programs. LOT nutrient removal will require facilities to completely nitrify their wastestream, with little room for error or variability. In these situations, inhibition of nitrification will become a serious design, operational control, and industrial pretreatment program issue. The industry will require reliable methods to identify and quantify inhibition on an ongoing basis.

A method has been developed that allows wastewater treatment plant operators, industrial pretreatment personnel, industries, and consulting engineers to test for the presence of nitrification inhibition in real wastewaters in a simple method that provides results that are as realistic as possible. The test method, which is based on direct measurement of NO3-N production, was developed to meet the following criteria:

The method should be suitable for use in wastewater samples. Therefore, the method should account for the interferences due to biodegradable COD. For this reason, the control samples should also closely mimic actual wastewater.


The method should be able to simulate the plant's actual operating conditions, including sludge, MLSS, HRT, etc.


The method should be simple enough for use as a routine testing method at treatment plants. It should be reliable, straightforward and have minimal equipment and instrument requirements.


The method was successfully used in monitoring the NIC of the influent and effluent from different processes at a wastewater treatment plant in Maryland for approximately six months. The method provided consistently reliable information to assess the nitrification inhibition characteristics of the tested wastewater and provided valuable input to the process design team.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Data/Media
No Metrics

Document Type: Research Article

Publication date: 2005-01-01

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