Trojan - Secondary and Tertiary Effluent UV Disinfection System

Municipal wastewater generally requires bacteria treatment to meet discharge limits before discharge to surface waters. The main objective is to reduce the number of waterborne pathogens to safe levels, and thereby lowering the risk of exposing the public to infectious diseases. UV is an ideal treatment option for wastewater since it does not alter the water quality – except for treating microorganisms. UV is a chemical-free process that can completely replace an existing chlorination system and also inactivate chlorine-resistant microorganisms like Cryptosporidium and Giardia. Unlike other chemical disinfectants, UV does not produce any carcinogenic disinfection byproducts that could adversely affect the water quality. There is also an added benefit of reducing the carbon footprint of the disinfection system when a plant switches to UV since the carbon dioxide emissions from chemical transportation is eliminated.