AirSCWO Destroys Over 99.9% of PFAS in Six Military Waste Streams
374Water's AirSCWO technology achieved over 99.9% destruction and removal efficiency for six PFAS-contaminated waste streams in a U.S. military demonstration project led by the Defense Innovation Unit and ESTCP. Independent third-party testing confirmed permanent PFAS mineralization with non-detect hydrogen fluoride emissions and effluent concentrations reduced to single-part-per-trillion or below.
1. Demonstration Project Outcomes
374Water completed a U.S. military demonstration project under DIU and ESTCP oversight, applying AirSCWO to six distinct PFAS-contaminated waste streams. The technology achieved destruction and removal efficiencies exceeding 99.9% for liquid streams and over 90% for solid wastes, permanently breaking down PFOS, PFOA and related compounds.
2. Third-Party Validation and Emission Results
Independent testing by Arcadis under EPA Method 1633 confirmed complete mineralization of PFAS contaminants, with effluent concentrations at or below detection limits. No hydrogen fluoride emissions were detected across all tests, validating AirSCWO’s safe operation without hazardous air byproducts.
3. Market Opportunity and Operational Readiness
With proven performance at scale, AirSCWO positions 374Water to capture growing demand from military installations, industrial sites and utilities facing stringent PFAS regulations. The permanent destruction approach eliminates residual waste liabilities and offers a final treatment step for concentrated PFAS streams.