Skip to main content

Develop Control Strategy to Maximize Nitrogen Removal and Minimize Operation Cost in Wastewater Treatment by Online Analyzer

Buy Article:

$9.50 plus tax (Refund Policy)

Or sign up for a free trial

This paper examines a full scale, real time nitrogen load and nitrogen removal profile along the aeration basin via an online analyzer at the Washington Sanitary Suburban Commissions Seneca WWTP, Md. Six months of full scale experiments provide firsthand experience with a control strategy based on DO and air flow set point, ammonia and NOx measurements and aerated swing zone volume for maximizing nitrogen removal. During the test period, ammonia, nitrite, nitrate and total phosphorous concentrations were monitored instantaneously. Parallel laboratory data agrees well with online analyzer measurements. Ammonia and NOx concentrations near the head of the aerobic zone and at end of the aeration basin were critical to achieving TN below 3 mg/l. Manually controlled swing zone on/ off and air flow adjustment responded well to nitrogen load variation, resulting in overall improvement of nitrogen removal. The Seneca experience and successful application of the control strategy in European WWTPs could provide an opportunity for future process control automation based on continuous online DO and nutrients. This paper also evaluates operational data at Seneca WWTP and summarizes experiences with operation strategies and BNR process optimization gained during the last few years. Simultaneous nitrification and denitrification (SND) was also observed based on nitrogen mass balance data which accounted for about a 53% nitrogen loss in the WSSC Seneca system.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Keywords: Oxygen uptake rate; air flow control; denitrification; dissolve oxygen; minimum aerobic volume; nitrification; online analyzer

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 These proceedings are not peer reviewed.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
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