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Treating Contaminants of Emerging Concern
Citation:
Speth, T., R. Khera, P. Ransom, N. Dugan, AND C. Patterson. Treating Contaminants of Emerging Concern. 15th Annual EPA Drinking Water Workshop, Covington, KY, August 29 - 31, 2018.
Impact/Purpose:
Treating contaminants of emerging concern will be presented with an emphasis on determining cost-effective solutions for small systems. Three specific examples will be used: per- and Polyfluoroalkyl Substances (PFAS), cyanotoxins, and perchlorate. Specifically discussed will be how contaminant properties influence treatment effectiveness, operational complexity, cost, and residual stream handling. Also, novel technologies will be discussed using anaerobic biofiltration of nitrate as an example. A demonstration will be made on the impact of system size on capital and operating costs; however, the lowest cost is not always the best option for small systems. For each technology and contaminant, how to avoid unintended consequences such as increase water corrosivity or residual handling problems will be covered. Throughout the talk, available USEPA tools and expertise will be highlighted.
Description:
Presentation to be given at the 15th Annual EPA Drinking Water Workshop in Covington, KY. Treating contaminants of emerging concern will be presented with an emphasis on determining cost-effective solutions for small systems. Three specific examples will be used: per- and Polyfluoroalkyl Substances (PFAS), cyanotoxins, and perchlorate. Specifically discussed will be how contaminant properties influence treatment effectiveness, operational complexity, cost, and residual stream handling. Also, novel technologies will be discussed using anaerobic biofiltration of nitrate as an example. A demonstration will be made on the impact of system size on capital and operating costs; however, the lowest cost is not always the best option for small systems. For each technology and contaminant, how to avoid unintended consequences such as increase water corrosivity or residual handling problems will be covered. Throughout the talk, available USEPA tools and expertise will be highlighted.