Per- and polyfluoroalkyl substances (PFAS) have been detected in the effluent of municipal. industrial, and military wastewater treatment plants.
In addition, a recent study found PFAS in the effluent of on-site septic systems, which serve about 25% of the US population.
The predominant compounds found in wastewater effluent have been perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS), which are degradation products of PFAS. PFOA and PFOS are persistent, bioaccumulative, and toxic.
EPA would like to improve and advance processes, technologies, and treatment systems for the removal of the PFOA and PFOS families of PFAS from wastewater. As a result, EPA is interested in the following topic:
Topic Code 1B: Removal of PFOA/PFOS from Wastewater. Innovative technologies that can remove PFOA and PFOS families of PFAS from PFAS from wastewater treatment plant effluent. The technology should consistently reduce the combined PFOA/PFOS concentration to below 0.07 ppb and be compatible with other water treatment processes, be affordable, and be easily used and maintained.