Under the Long-Term 2 Enhanced Surface Water Treatment Rule (LT2ESWTR), all utilities in
the U.S. will receive ultraviolet (UV) disinfection credit using measurements made by UV sensors. Yet,
performance issues exist with commercial UV sensors. Sensors are used within monitoring
strategies that do not meet current guidelines, and current guidelines do not agree on criteria. The
goal of AwwaRF project 2977, Design and Performance Guidelines for UV Sensor Systems, is to
develop practical design and performance guidelines for UV sensors used for dose delivery
monitoring by UV disinfection reactors. This goal will be met through a focused research
approach that involves: benchmarking the state-of-the-art through a literature review and vendor
survey; developing instrumentation for measuring UV sensor properties with different designs;
measuring the performance of current UV sensors under field and laboratory conditions;
analyzing the impacts of sensor properties on dose delivery monitoring using the latest in CFD-based
dose and UV intensity modeling; obtaining feedback on draft guidance from stakeholders;
and, implementing a NIST primary calibration and verification service for UV sensors. Specific
deliverables will be a final report with the results from each task in our research approach, a
software package for CFD-based dose and sensor modeling, and a NIST calibration and
verification service for UV sensors. Includes 15 references, table, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 1.2 MB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 17 |
| Published : | 06/17/2004 |
