Direct PFAS Removal

CCES has partnered with The Water and Carbon Group (WCG) to offer its foam fractionation process called The LEEF System® as a low-energy PFAS extraction and volume reduction system. Based in Australia, WCG developed the LEEF System® to treat highly contaminated wastewater such as landfill leachate or brine streams from industrial or mining activities. A key feature is that pre-treatment is typically not required for direct PFAS removal.

The technology combines a proprietary multiple step foam fractionation and enclosed solar distilling system to deliver a unique and proven PFAS solution centered around harnessing air, gravity, and the sun.

The system has been engineered to sharply reduce high energy consumption and large waste streams that plague existing systems while utilizing renewable and naturally occurring resources. Throughout the process, zero chemicals or consumables are used, resulting in a simple to operate, low maintenance system. Using a modular design, the system can be easily scaled to meet any volume requirements.

 

Performance

The system removes greater than 99% of PFAS contaminants within 15 minutes, treating wastewater to within regulatory discharge limits with results as low as ~10 ppt to 200 ppt. The final extracted waste stream is then reduced passively to below 1% of the initial treated volume.

The modular system uses minimal energy and can be assembled to treat any volume from 7,500 gpd to 250,000 gpd.

The approach has successfully undergone significant testing at sites in Australia, including a major project at a landfill in the Northern Territory that had complex leachate and climatic conditions. As shown in the chart, one site with PFAS over 19,000 ppt was able to drop it below 78 ppt using the system, while another was able to remove the compounds to below 5 ppt.

LMS and WCG are offering pilot trials at client-nominated sites of interest throughout the United States. Check out WCG's WEBSITE for more information.