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Deteriorating drinking water quality, including the presence of cyanobacteria-derivedtaste and odor-causing compounds and algal toxins, continues to be a major concern formunicipal drinking water suppliers. For many utilities ultraviolet disinfection (UV) is the best option to comply with the treatmentrequirements of the US Environmental Protection Agency's Long Term 2 Enhanced SurfaceWater Treatment Rule (LT2). Inaddition, there is a growing awareness of UV light-based advanced oxidation processes fortreating micropollutants in water, including treatment of taste and odor-causing compounds andassociated algal toxins.Several municipalities have installed or are in the process of installing full-scale UV-oxidationsystems for simultaneous disinfection and treatment of taste and odor and algaltoxins. Selected examples include the cities of Groesbeck, Texas (2 million gallons per day[MGD] peak flow), Lucerne, California (1 MGD) and Cornwall, Ontario, Canada (26 MGD). Each UVdisinfection/UV-oxidation system operates in two modes, Disinfection-Only Mode and T

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Edition: Vol. - No. Published: 11/01/2008 Number of Pages: 12File Size: 1 file , 670 KB