DMPQ- Explain Ultraviolet (UV) disinfection systems
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Ultraviolet (UV) disinfection systems contact the treated secondary wastewater with UV light bulbs that are encased in clear housings.
The UV light kills pathogenic organisms by using a germicidal photochemical wavelength.
Unlike chlorination, UV leaves no residual in the wastewater with which to be concerned.
Plants that use UV must either have dual UV systems or have chlorination as a backup. Additionally, these UV systems are energy consumptive.
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