AWWA ACE63249

This slide presentation outlines innovative approaches to water purification with ultraviolet (UV) advanced oxidation for the Prairie Waters Project at Aurora Water in Aurora, Colorado. Project background included: Prairie Waters Project System Components; comparison of quality of Aurora's water supplies; Aurora water quality goals; nitrosamine health effects and regulatory status; NDMA health effects and regulatory status; new SPP purification processes provide multiple barriers for new challenges; and, blending SPP supply meets total dissolved solids (TDS) goals. Treatability testing goals included: provide data to refine ARWPF design criteria; evaluate efficacy of enhanced coagulation/softening, UV advanced oxidation, and granular activated carbon (GAC) adsorption processes; confirm water quality capabilities of treatment processes; refine facility cost estimates; and, produce water for taste test without high pressure membranes. UV advanced oxidation process testing involved: NDMA Removal with UV AOP; Micro-pollutant removal with UV AOP; removal of T&O compounds with UV AOP; UV AOP and byproduct formation; GAC column testing; and, results of EDC analyses. Includes figures.