Full Description

Under the Long-Term 2 Enhanced Surface Water Treatment Rule (LT2ESWTR), all utilities inthe 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 monitoringstrategies that do not meet current guidelines, and current guidelines do not agree on criteria. Thegoal of AwwaRF project 2977, Design and Performance Guidelines for UV Sensor Systems, is todevelop practical design and performance guidelines for UV sensors used for dose deliverymonitoring by UV disinfection reactors. This goal will be met through a focused researchapproach that involves: benchmarking the state-of-the-art through a literature review and vendorsurvey; 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on dose delivery monitoring using the latest in CFD-baseddose and UV intensity modeling; obtaining feedback on draft guidance from stakeholders;and, implementing a NIST primary calibration and verification service for UV sensors. Specificdeliverables will be a final report with the results from each task in our research approach, asoftware package for CFD-based dose and sensor modeling, and a NIST calibration andverification service for UV sensors. Includes 15 references, table, figures.

Product Details

Edition: Vol. - No. Published: 06/17/2004 Number of Pages: 17File Size: 1 file , 1.2 MB