Ultraviolet (UV) disinfection is now a standard feature in many wastewater treatment plants. It has also been adopted by the drinking water community as a barrier against chlorine-tolerant species such as Cryptosporidium and Giardia.
The technology is widely favored for its non-chemical nature, its elimination of subsequent dechlorination, and its ability to be unselective in disinfection performance. While wastewater treatment plants traditionally have used open-channel systems for UV disinfection, closed-vessel systems have been refined and improved in recent years and have benefits that make them deserving of serious consideration.
Proving performance
UV light works by causing permanent damage to the organisms’ DNA. Once
