PFAS is a large group of synthetic compounds used in industrial processes, firefighting foams, surface treatments and consumer products. These substances are characterized by exceptional chemical stability and are often referred to as "forever chemicals". Certain PFAS compounds can accumulate in the environment and living organisms, increasing the need for monitoring, treatment and destruction.
Suitable for
- PFAS in Groundwater
- PFAS in Drinking Water
- Firefighting Foam Contamination
- Industrial Water Contamination
- Landfill Leachate and Process Water
Common PFAS Technologies
- Granular Activated Carbon (GAC)
- Ion Exchange Resins
- Zeolite-Based Adsorbents
- Membrane Treatment (RO/NF)
- Advanced Oxidation Processes (AOP)
Advantages
- High removal efficiency with suitable technologies
- Multiple complementary treatment approaches are available
- Suitable for both small and large flows
- Can be combined with destruction technologies
Limitations
- PFAS is a broad family of compounds with different properties
- Adsorbent media must be replaced or regenerated
- Many technologies transfer rather than destroy PFAS
- Technology selection should be based on water analysis and PFAS profile
PFAS Removal versus PFAS Destruction
It is important to distinguish between technologies that remove PFAS from water and technologies that actually destroy PFAS molecules. Activated carbon, ion exchange resins, zeolite-based adsorbents and membrane systems typically concentrate PFAS into a filter medium or concentrate stream which must then be managed.
Advanced Oxidation Processes (AOP) and emerging physical destruction technologies are being developed to attack the exceptionally strong chemical bonds found in PFAS compounds. DABCE is actively involved in this field and is working at the forefront of next-generation PFAS destruction technologies aimed at permanently breaking down contaminants rather than simply transferring them elsewhere.
Example Treatment Trains
Particle Filtration
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Activated Carbon
↓
Fine Filtration
↓
UV Disinfection
↓
Drinking Water
Particle Filtration
↓
Zeolite Adsorbent
↓
Fine Filtration
↓
Drinking Water
Pretreatment
↓
RO or Adsorbent
↓
Concentrate Treatment
↓
AOP Destruction
PFAS treatment is a rapidly evolving field. Technology selection should always be based on water analysis, PFAS composition, flow rate and treatment objectives. It is equally important to consider how spent media, concentrated PFAS streams and other residuals will be managed after treatment.