The Proposed Ultraviolet (UV) Disinfection Guidance Manual (UVDGM) that was released in June 2003
provided the first operations and maintenance (O&M) guidelines for UV disinfection facilities of
drinking water. When those 2003 guidelines were published, there were few operating UV
facilities to benchmark the O&M requirements and recommendations. As more UV facilities
come on-line, more data were available to the UVDGM development team. These data and
operating experience were used to develop the final UV disinfection O&M guidelines that were
published with the final UVDGM, and these guidelines are substantially changed from the June
2003 O&M guidelines. The final O&M guidelines provide clear criteria for the calibration of
UV sensors and UVT analyzers and have recommended alternatives if a UV sensor or UVT
analyzer fail the criteria. These alternatives were developed to provide operational flexibility to
allow a UV facility to keep operating for a limited time even if the UV sensor and UVT analyzer
do not meet criteria. Monitoring and recording recommendations also changed between the
proposed and final UVDGM based on the final UVDGM validation protocol and UV equipment
capabilities.
This paper describes the following items:
key O&M tasks, including monitoring, recording, and reporting;
methodology behind the key O&M guidelines; and, new O&M options that provide flexibility in the event of UV sensor of UVT
monitor failure. Includes reference, tables.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 180 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 9 |
| Published : | 11/01/2007 |
