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SCWO technology eliminates 99,9% of PFAS from wastewater

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By Aquarden Technologies, March 09, 2020

Elimination of PFAS/PFOS/PFOA

SCWO technology eliminates 99,9% of PFAS from wastewater

Aquarden Technologies has made a number of tests with removal of per- and polyfluoroalkyl substances (PFAS) from leachate and problematic wastewater with great success. The PFAS group of chemicals includes substances such as perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) that have been identified with growing concern as highly carcinogenic contaminants.

An initial study with leachate from Sörab waste deposit (SE) containing PFAS, documented a successful removal of 19 PFAS/PFOS/PFOA components from the raw leachate.

After treatment in our SCWO reactor, all 19 PFAS substances including PFOS and PFOA were measured and found to be 99,9% eliminated. Results are shown in the figure:

These compounds are extremely difficult to degrade even with advanced oxidation technologies but SCWO is able to completely destroy them.

Removal of PFAS from Swedish airfield, Arlanda

Fire drills are conducted regularly on airfields, where fire extinguishing agents containing PFAS are used. As on many airfields, Arlanda in Sweden has identified PFAS as a pollutant in their soil and water, and has therefore engaged Aquarden Technologies to remove these compounds.

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