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AWWA ACE56214
- Critical Aspects of UV Dose Delivery Monitoring
- Conference Proceeding by American Water Works Association, 06/16/2002
- Publisher: AWWA
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This paper provides a description of the dose monitoring approaches used by ultraviolet (UV) reactors designed to treat drinking water and addresses issues including: comparing the different monitoring methods; the optimum position for UV intensity sensors relative to the UV lamps; the impact of differing UV intensity sensor properties; and, safety factors required to account for uncertainty in dose monitoring. Approaches used by UV reactors to monitor dose delivery fall into three categories: UV intensity setpoint approaches; UV intensity / UV transmittance setpoint approaches; and, calculated dose approaches. Includes 8 references, tables, figures.