BioLargo Engineering > BioLargo AEC


BioLargo Aqueous Electrostatic Concentrator (AEC) is designed to provide rapid, effective, and affordable concentration of per- and polyfluoroalkyl substances (PFAS) in water. It works by separating PFAS compounds in an electrostatic field and forcing them through a proprietary membrane system.

The result – the AEC removes >99% PFAS from water in continuous flow, at energy costs as low as 30 cents per 1,000 gallons.

Advantages over other technologies:

      • More energy-efficient
      • More affordable on per-gallon basis
      • Less activated carbon required in PFAS life cycle
      • Higher purity of final water
      • Compact; small footprint

Development and commercialization of the AEC is supported in part by a grant provided by the US EPA SBIR.


What are PFAS?


Per- and polyfluoroalkyl substances (PFAS) are a group of man-made chemical contaminants found in a vast number of household and industrial products including cleaning supplies, cookware, electronics, and more. They are bioaccumulative, meaning they do not break down easily in the environment, in animals, or in human beings, and they are associated with health effects including cancer, hormonal disorders, and immune system problems.

Described as “forever chemicals” by Washington DC based environmental watchdog the Environmental Working Group, PFAS contamination is estimated to affect up to 110 million people in the United States. Numerous experts have linked PFAS to detrimental effects on human health and the environment due to their tendency to accumulate and persist in the environment and human body. On January 7, 2020, EPA Administrator Andrew Wheeler announced that “aggressively addressing per-and polyfluoroalkyl substances (PFAS) is an active and ongoing priority for the U.S. Environmental Protection Agency.” The two common and widespread PFAS compounds addressed by the BLEST study – PFOA and PFOS – are found in common household and industrial products. Both compounds have been found in water supplies across the country, and municipalities are struggling to find a feasible and affordable solution to remove PFAS from their drinking water.

Learn more by reading about the AEC on the EPA website, or in WaterWorld.


Contact us for a free consultation to determine if the BioLargo AEC is right for your needs.

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BioLargo Engineering is a full service environmental engineering team and solution provider for your most difficult challenges.