AWWA ACE70589

This powerpoint presentation begins by providing a brief overview of the sources and health effects of 1,4-Dioxane. Treatment process effectiveness is presented, along with the bench scale treatment process train: lime softening, ozone, BAC, and chloramines. The bench scale treatment method is presented, along with the impact of initial dioxane concentration and temperature, a cost comparison of 50% 1,4-Dioxane removal vs 90% 1,4-Dioxane removal, greenhouse gas emissions comparison of 50% 1,4-Dioxane removal vs 90% 1,4-Dioxane removal. Presentation summary: 1,4-Dioxane is difficult to remove from water; UV/Hydrogen peroxide is effective, but energy intensive; and, ozone followed by biological filtration is an economical removal method, and more sustainable. Includes figures.