Skip to main content


Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial


The City of Niagara Falls, New York wastewater treatment facility has been using granular activated carbon adsorption/filtration to achieve secondary treatment for over fifteen years. While the system functions principally as planned, modifications to backwashing procedures, onsite carbon regeneration and odor control/corrosion control systems have improved operability and decreased expenses. The current odor control strategy was developed after trial applications of various chemical oxidizers and agents at various locations in the treatment process. The filters are now allowed to operate in an anaerobic state, while byproducts and chemically reduced compounds in the effluent are oxidized prior to disinfection. Scheduled media regeneration and backwash water chlorination helps keep anaerobic activity under reasonable control.

One recent experiment examined the effect of operating filters with reduced carbon inventory and increased carbon quality upon pollutant removal and odor production. After a period of acclimation, odor production from the experimental filters became equivalent to the control filter, while specific pollutant removals were the same or poorer than that of the control filter. Reduced odor generation, reduced costs, and better system control would result from greater consistency in maintaining a strong chlorine residual in the backwash water, thereby controlling anaerobic growths in the filter underdrain system, rather than by reducing or replacing the carbon media.

Document Type: Research Article


Publication date: 2002-01-01

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 These proceedings are not peer reviewed.

    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
  • 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