Start with water analysis
PFOS treatment selection depends on more than a single contaminant result. Review the full PFAS profile, background organic matter, competing ions, flow and peak demand, and the intended use of the treated water.
PFOS Treatment for Water
Plan a treatment approach around your source water, operating conditions, and required effluent quality. PFOS treatment needs site-specific evaluation and analytical verification.
Discuss Your Water Treatment NeedsTreatment options to evaluate
- Granular activated carbon (GAC): adsorption media that may be used for PFOS and other PFAS; service life depends on water chemistry and operating conditions.
- Selective ion exchange: specialty resins that can be assessed for target compounds, capacity, and competing constituents.
- Reverse osmosis: a membrane process that may reject PFOS, while producing a concentrate stream that also requires management.
Plan for residuals and verification
These processes can transfer PFOS from water into spent media, brine, or concentrate rather than destroy it. Include residual handling, media changeout, sampling, and laboratory confirmation in the system plan.
PFOS treatment planning
A practical review considers source-water data, treatment goals, flow and pressure requirements, pretreatment, monitoring points, maintenance access, and residuals management. Pilot testing may be appropriate where media life or performance is uncertain.
Applicable requirements vary by location and end use. Confirm project-specific targets and compliance obligations with the relevant authorities and qualified professionals.
What to send us for a review
- Laboratory results showing PFOS and the wider PFAS panel, with detection limits and sample dates
- General water chemistry: TOC, hardness, chloride, sulfate, pH, and iron or manganese
- Average and peak flow, operating pressure, and daily run hours
- Treated-water use and any discharge or permit requirements
- Site constraints: footprint, power, drain access, and existing treatment equipment
Regulatory context in Ontario and Canada
Health Canada and the Ontario Ministry of the Environment, Conservation and Parks publish PFAS guidance and criteria that can change over time. Confirm the current limits and reporting obligations that apply to your site, whether for drinking water, process water, or discharge, before setting a treatment target.
Frequently asked questions
What treatment methods can be considered for PFOS in water?
GAC, specialized ion-exchange media, and high-pressure membrane processes may be considered. Suitability and performance depend on water chemistry, concentration, flow, and treatment goals.
Does a PFOS treatment filter destroy PFOS?
Many processes capture or concentrate PFOS rather than destroy it. Spent media, brine, or membrane concentrate needs an appropriate handling and disposal plan.
How do I confirm a PFOS treatment system is working?
Use representative sampling and laboratory testing suited to the treatment objective, and verify results against the project requirements.
Related treatment services
Need help evaluating a PFOS treatment project?
Share your water analysis, flow requirements, and treatment objectives so the right next steps can be considered.
Contact Eclipse