Reliable UV treatment for UV transmittance down to 16% Denison WWTP installed Enaqua's UV solution for low quality water without the need for extensive pre-treatment systems. DENISON, IA Project Background Denison received a cease and desist order in 2012. The plant had to overcome its wastewater disinfection issues, and sought after a sustainable solution. The major suppliers of UV disinfection equipment said that it was impossible to go for UV technology – without installing extensive pre-treatment systems. Enaqua in contrast, asked permission to perform a pilot testing and proved that UV truly is an option without the need for pre-treatment. The Enaqua Solution Denison’s UV transmittance varies between 16 and 45% and the turbidities up to70 NTU. The TSS range varies from 11 to 14

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