If you are experiencing problems downloading PDF or HTML fulltext, our helpdesk recommend clearing your browser cache and trying again. If you need help in clearing your cache, please click here . Still need help? Email help@ingentaconnect.com

Using pH and ORP to Optimize Phased Nitrfication-Denitrfication Operation

$17.50 plus tax (Refund Policy)

Buy Article:


The City of Bozeman, Montana (pop. 36,000) recently converted the operation of its complete mix activated sludge aeration basins to plug flow basins operating in a phased nitrification-denitrification mode. Operation in phased nitrification denitrification mode has reduced the plant's effluent total nitrogen by 40% without sacrificing ammonia removal. Sludge volume index values also dropped slightly with this modification. Chlorine use for filament control and disinfection has dropped from 52 tons per year to 32 tons per year. The total capital cost for project implementation was 180,000. The process uses pH and ORP probes to control and optimize nitrogen removal efficiency.

Keywords: denitrification; nitrification; process control

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864709793956248

Publication date: January 1, 2009

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 These proceedings are not peer reviewed.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • ingentaconnect is not responsible for the content or availability of external websites



Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
ingentaconnect 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