Skip to main content

An Evaluation of UV and NaOCl for Wastewater Disinfection at the Pelham WWTP

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

A relatively new ultraviolet (UV) disinfection technology has been selected for the Pelham wastewater treatment plant (WWTP) operated by the Western Carolina Regional Sewer Authority (WCRSA). When completed, the Pelham WWTP will be the largest UV installation in South Carolina and one of the largest low pressure, high intensity UV systems in the United States.

Presently, chlorine gas is used for effluent disinfection, and sulfur dioxide gas is used for dechlorination. Chlorine gas, sodium hypochlorite, and UV disinfection were evaluated during the predesign process with UV appearing to be the best alternative. The Pelham plant will receive effluent from the Taylors WWTP, another WCRSA plant, after decommissioning in five years. Differences in the two plants' effluent quality, color, transmittance, and dissolved inorganics were concerns for selection of the UV system. Therefore, plant-specific testing was done to confirm the UV design criteria.

After completion of the site specific study, UV and liquid sodium hypochlorite (NaOCl) disinfection with sodium bisulfite (NaHSO3) dechlorination were considered for implementation. The disinfection system will have a design capacity equal to the expanded plant capacity of 22.5 mgd. This paper highlights the decision matrix used to evaluate disinfection alternatives including evaluation of UV technologies, plant specific testing, costs analyses, and the establishment of design criteria.
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: 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 These proceedings are not peer reviewed.

    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
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