AWWA WQTC62576

In the Spring of 2003, the City of Albany, New York began full-scale operation of their 40million gallon per day Loudonville Reservoir Ultraviolet (UV) Treatment Facility (Loudonville UVFacility). In October 2003, on-site validation of the UV equipment was conducted. Validationtesting was conducted by Trojan Technologies, Inc. with third party oversight by Dr. JamesMalley from the University of New Hampshire and Christine Cotton from Malcolm Pirnie, Inc.The original matrix of test conditions for on-site validation was developed to confirm the UVequipment met the performance criteria established in the Contract Documents and to establishthe envelope of validated operating conditions for the Loudonville UV Facility. Through a cost-sharedgrant from the New York State Energy Research and Development Authority, the matrixof test conditions was expanded to assess the potential for energy efficiency improvementsthrough increased lamp control and to evaluate the feasibility of utilizing UV disinfection forvirus inactivation.On-site validation at the Loudonville UV Facility was conducted using MS2 bacteriophage as achallenge organism and instant coffee as a UV absorbance modifier to simulate varying waterquality. Testing and data analyses were done largely in accordance with the Validation Protocolestablished in the June 2003 United States Environmental Protection Agency Draft UltravioletDisinfection Guidance Manual. The project offered the unique opportunity to apply the theoryand guidance offered in the Guidance Manual in a real-world setting, with a number of interestingand technically significant findings. This paper discusses the validation process and willpresent the results of the City of Albany's on-site validation testing. The results will provide thewater industry with greater insight into the validation process with specific findings related to:a critical assessment of using the Guidance Manual approach for an on-sitevalidation;the limitations of current challenge organisms;the challenges encountered during full-scale on-site validation testing of theCity's UV Facility;the feasibility of using UV disinfection for virus inactivation; and,the implications of the validation results on power optimization. Includes tables, figures.

Product Details

Edition:

Vol. - No.

Published:

11/01/2005

Number of Pages:

17

File Size:

1 file , 620 KB