The DoD faces some of the largest PFAS remediation mandates in the country. Between 2022 and 2024, the Government Accountability Office (GAO) reported a 1,500% increase in DoD’s projected PFAS cleanup costs, with the most recent estimate reaching $9.3 billion. That figure is expected to rise further as ongoing site investigations reveal the true scope of contamination.
Recognizing the need for effective, on-site solutions, the DoD’s updated PFAS destruction guidance now highlights hydrothermal alkaline treatment (HALT) as an emerging technology under review. HALT’s anticipated Success Memo further reinforces its technical validation for remediation projects, providing additional confidence in field-ready PFAS destruction.
PFAS remediation concerns extend to airports, DoD sites, and known or suspected contaminated sites, creating thousands of locations where effective on-site destruction technologies are needed. HALT is effective across various remediation applications, including:
PFAS remediation involves many activities, including soil removal, soil washing, ground stabilization, pump-and-treat activities for groundwater, and stormwater management. HALT is designed specifically to treat concentrated PFAS liquids, providing a scalable, on-site solution for:
After PFAS are isolated using standard separation technologies, HALT treats the PFAS-rich concentrate to destroy the bulk of PFAS.
A polishing or recirculation step can be introduced to capture any residuals and ensure discharge compliance. This closed-loop approach ensures PFAS are permanently destroyed on-site, reduces overall treatment costs, and prevents future environmental or public health risks.
