Ultraviolet disinfection
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Ultraviolet disinfection is a form of wastewater treatment. It is commonly used in garden pond filtration systems to kill algae.
Large scale urban UV wastewater treatment is performed in cities such as Edmonton, Alberta.
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[edit] UV Dosing
One method for gauging UV effectiveness is to compute uv dose. The U.S. EPA publishes UV doseage guidelines [1]
Doseage involves the following parameters:
- flow rate (reflecting contact time)
- transmittance (reflects light reaching the target)
- turbidity ("cloudiness")
- lamp age (reflects reduction in UV intensity)
- lamp fouling
- % active lamps (reflects lamp outages in each lamp bank)
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