Puraffinity is a green technology company, incorporated in 2015 with a focus on designing smart materials for environmental applications.
Existing technologies for the removal of PFAS, such as granular-activated carbon and ion exchange are non-selective, meaning they are unable to reliably remove PFAS from water, are affected by non-PFAS constituents and are not easily adaptable to comply with changing regulations.
Puraffinity has developed a novel platform technology that engineers the surface of raw materials using tailored ‘PFAS-friendly’ molecular groups. The result is a suite of adsorbent materials, exhibiting high selectivity towards diverse PFAS compounds, allowing them to be trapped and removed from the water.
This new technology can be modified to target different types of PFAS, to meet the demands of changing global regulations. It can also be adapted for multiple applications, from large-scale use to domestic applications:
- Environmental remediation: PFAS infiltration into groundwater requires a dedicated approach to enable effective remediation of polluted groundwater sites. Adsorbents can be retrofitted to existing assets in diverse sites and scenarios.
- Potable water treatment: New regulations are now requiring utilities to implement treatment solutions to ensure potable water supply is safe. New adsorbent technology is adaptable to large-volume applications and is designed with a high selectivity and high adsorption capacity, leading to lower footprints, less downtime, lower change-out frequency and attractive lifecycle costs.
- Point-of-use (POU): POU systems can serve as an affordable frontline barrier to PFAS for affected communities.
- Industrial manufacturing facilities: Many manufacturing facilities are required to treat their wastewater to meet stringent regulations prior to discharge into the environment or the municipal sewage system. Adsorbents can be designed as a polishing step in an industrial wastewater treatment process, whilst also considering high concentrations of PFAS, typically present in this application.
- Commercial airports/military bases: The use of aqueous film forming foams (AFFF) has exposed many airports and military bases to environmental challenges pertaining to PFAS contamination in groundwater and run-off water. Adsorbent technology can be tailored to remove different classes of PFAS at varying concentrations to meet environmental discharge permits.