Skip to main content

ADDITION OF UV DISINFECTION FOR KAILUA REGIONAL WASTEWATER TREATMENT PLANT, HAWAII

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

Abstract:

The Kailua regional wastewater treatment plant near Honolulu, Hawaii, treats flows of 56,818 m3/d (15 mgd) and discharges to Kailua Bay. Concern over the discharge of undisinfected effluent to a bay where humans have direct contact with the water led to design of a disinfection facility.

The city and county of Honolulu, Hawaii, chose ultraviolet disinfection, a less commonly used technology for wastewater treatment. Because few operating UV systems for wastewater disinfection exist in Hawaii, a pilot study was conducted to characterize treated wastewater from the Kailua plant and determine if UV disinfection would be effective.

The pilot study indicated that UV disinfection would meet the effluent criteria for Enterococci. Several types and configurations of UV systems were evaluated. Based on technical and cost evaluations, the engineers designed a low-pressure system with a vertical lamp configuration.

Performance of the UV system indicates that it is effective on a secondary effluent with as much as 20 mg/L suspended solids. However, experience has also shown that oil and grease can interfere with the disinfection process. At Kailua Regional WWTP, therefore, operators have learned that continued vigilance and daily equipment inspections are essential to maintaining performance of the UV disinfection system.

Document Type: Research Article

DOI: https://doi.org/10.2175/193864702784246856

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 These proceedings are not peer reviewed.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 ContentFree content
  • Partial Free ContentPartial Free content
  • New ContentNew content
  • Open Access ContentOpen access content
  • Partial Open Access ContentPartial Open access content
  • Subscribed ContentSubscribed content
  • Partial Subscribed ContentPartial Subscribed content
  • Free Trial ContentFree 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