Perfluoroalkyl substances (PFAS), often referred to as “forever chemicals,” have become a major environmental concern due to their widespread contamination and persistence in the environment. The ability to effectively remediate past PFAS contamination is a priority for many contaminated sites worldwide. econ industries have conducted successful proof-of-performance tests using its VacuDry® technology to degrade PFAS from contaminated soils. The VacuDry® process is an indirectly heated vacuum distillation technology that has shown promising results in sustainably and reliably eliminating PFAS from soil and filter cakes.
This achievement highlights the potential of the VacuDry® technology as a valuable tool in addressing the global PFAS contamination challenge. By effectively degrading these persistent pollutants, our VacuDry® technology offers a sustainable solution for remediating contaminated sites and protecting human health and the environment.
Benefits of VacuDry® for PFAS contaminated soils & filter cakes :
- Plant throughput up to 250 t/day
- Lowest energy consumption through efficient heat transfer and vacuum
- Significant reduction of fluorinated compounds in the soils
- Environmentally friendly, fully enclosed separation process for volatile contaminants
- High temperature and retention times to ensure an in-depth decomposing effect of PFAS
- Final off-gas treatment by thermal oxidizer with minimised off-gas volume flow of < 100 Nm³/h due to vacuum process
| Key Facts | |
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Sources |
Chemical manufacturing (e.g., fluoropolymers like Teflon, coatings, and surfactants), landfills leachate, refinery sites, Adhesives, paints, sealants etc |
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Input material |
Contaminated Soils, filter cakes |
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Output material |
PFAS free soilds (below disposal regulations), water and oil |
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Plant design |
Fixed or mobile execution, 0.5 … >10 t/h throughput capacity |
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Heating system fired by |
Electricity, biofuels, hydrogen, recovered oil, diesel, natural gas, as well as hybrid systems are available |