--- title: Ion Exchange Resins | Chromafora description: Chromafora offers ion exchange (IX) resin treatment for PFAS – standalone or as a polishing step alongside SELPAXT and flocculation. --- [Skip to content](https://chromafora.com/ion-exchange-resins-chromafora#main-content) [![chromafora-logo-white](https://chromafora.com/hs-fs/hubfs/LOGOS%20and%20ICONS/chromafora-logo-white.png?width=150&height=30&name=chromafora-logo-white.png) ![chromafora-logo-green](https://chromafora.com/hs-fs/hubfs/LOGOS%20and%20ICONS/chromafora-logo-green.png?width=150&height=30&name=chromafora-logo-green.png)](https://chromafora.com) Turning wastewater into renewable resources - [TECHNOLOGIES](https://chromafora.com/technology) - [ABOUT CHROMAFORA](https://chromafora.com/about-us) - [INSIGHTS](https://chromafora.com/insights) - [CONTACT](https://chromafora.com/contact-us?purpose_of_inquiry=General) - [TECHNOLOGIES](https://chromafora.com/technology) - [ABOUT CHROMAFORA](https://chromafora.com/about-us) - [INSIGHTS](https://chromafora.com/insights) - [CONTACT](https://chromafora.com/contact-us?purpose_of_inquiry=General) - [Home](https://chromafora.com) / - [Our Technologies](https://chromafora.com/water-treatment-technologies) / - Ion Exchange Resins # Ion Exchange Resins ## Higher-selectivity adsorption for the PFAS that are harder to catch  Ion exchange (IX) resins offer higher selectivity than GAC and can improve removal of certain short-chain PFAS. We provide IX treatment as a standalone solution for suitable water matrices, or as part of a wider Chromafora treatment train. **What Ion Exchange does well**  IX resins remove PFAS by exchanging ions at binding sites on the resin surface. Compared with GAC, this typically means faster treatment kinetics and higher capacity, which can improve removal of some shorter-chain PFAS compounds that conventional adsorption media struggle to capture. Performance in landfill leachate, however, depends heavily on matrix stability. Elevated chloride concentrations – common in leachate – compete with PFAS for exchange sites, reducing capacity and accelerating breakthrough. High organic content can also foul the resin over time. ## Key considerations for landfill leachate applications ### Improved short-chain removal Higher selectivity than GAC for some short-chain PFAS. ### Chloride competition Elevated chloride concentrations, common in leachate, can compete with PFAS for exchange sites and reduce treatment efficiency. ### Fouling risk High organic content in complex leachate can foul resin and reduce capacity. ### Regeneration and waste Depending on resin type, regeneration can generate a brine or secondary waste stream requiring management; single-use resins require replacement and disposal. ## Where it fits #### **Polishing step** Placed after SELPAXT or flocculation,  once chloride and organic loading have already been reduced, improving resin life and stability.  #### **Standalone treatment** For simpler water matrices with lower fouling risk and a short-chain PFAS profile.  ## Do you want to know if IX is the right fit? The long-term economics of Ion Exchange depend on matrix composition and resin management. Our team can evaluate your water and recommend whether ion exchange, on its own or combined with another Chromafora technology, is the most reliable route to compliance. [CONTACT AN EXPERT](https://chromafora.com/contact-us) ## Technology insights [![Chromafora appoints new Country Manager to drive growth in Denmark](https://chromafora.com/hs-fs/hubfs/INSIGHTS/insight_ahmed_natural.jpg?height=245&name=insight_ahmed_natural.jpg) Chromafora appoints new Country Manager to drive growth in Denmark Press release Aug 6, 2026](https://chromafora.com/insights/chromafora-appoints-new-country-manager-to-drive-growth-in-denmark) [![Chromafora acquires Montrose Environmental Group Denmark](https://chromafora.com/hs-fs/hubfs/INSIGHTS/insight_seijmer_2601.jpg?height=245&name=insight_seijmer_2601.jpg) Chromafora acquires Montrose Environmental Group Denmark Press release Jan 20, 2026](https://chromafora.com/insights/chromafora-acquires-montrose-environmental-group-denmark) [![Thiosulfate Gold Leaching by Chromafora – High Yield and Low Costs Confirmed in Pilot](https://chromafora.com/hs-fs/hubfs/INSIGHTS/insight-gold-pilot.jpg?height=245&name=insight-gold-pilot.jpg) Thiosulfate Gold Leaching by Chromafora – High Yield, Low Costs Press release Dec 29, 2025](https://chromafora.com/insights/thiosulfate-gold-leaching-by-chromafora-high-yield-and-low-costs-confirmed-in-pilot) [![Chromafora to tackle widespread chemical pollution with €22.5 million EU backing](https://chromafora.com/hs-fs/hubfs/INSIGHTS/insight-EIB.jpg?height=245&name=insight-EIB.jpg) EIB funding fuels Chromafora’s growth – strong performance in Q1 and Q2 Press release Jul 2, 2025](https://chromafora.com/insights/eib-funding-fuels-chromaforas-growth-strong-performance-in-q1-and-q2) [![Chromafora recognized for award-winning breakthrough in PFAS treatment](https://chromafora.com/hs-fs/hubfs/insight-chromafora-FandS.jpg?height=245&name=insight-chromafora-FandS.jpg) Chromafora recognized for award-winning breakthrough in PFAS treatment Press release Jun 16, 2025](https://chromafora.com/insights/chromafora-recognized-for-award-winning-breakthrough-in-pfas-treatment) [MORE INSIGHTS](https://chromafora.com/insights) [![chromafora-logo-white](https://chromafora.com/hs-fs/hubfs/LOGOS%20and%20ICONS/chromafora-logo-white.png?width=120&height=24&name=chromafora-logo-white.png "chromafora-logo-white")](https://chromafora.com) ### CONTACT Chromafora AB Vretensborgsvägen 20 126 30 Hägersten, Sweden +46 8 23 53 50 Kildemarksvej 3 4200 Slagelse Denmark BluePoint Brussels Blvd Auguste Reyers 80 1030 Brussels, Belgium [Get in touch](https://chromafora.com/contact-us?purpose_of_inquiry=General) ### INSIGHTS Stay up-to-date with the latest news, articles, videos and more [Go to Insights](https://chromafora.com/insights) ### NEWSLETTER Get the latest Chromafora news to your inbox Chromafora is an innovative cleantech company offering water treatment technologies for removing contaminants while reducing waste through selectivity. The company’s portfolio includes unique, patented water treatment technologies –SELPAXT and SELMEXT – based on proprietary chemistry. Chromafora’s PFAS removal technologies eliminate ultra-short-, short-, and long-chain PFAS from water streams, while its metal extraction technologies target the removal of heavy metals and contribute to the conservation of critical raw materials by enabling the recovery and recycling of valuable metals from waste. © Copyright Chromafora 2026. All Rights Reserved Website by [Orange Bird](https://orange-bird.agency/) [Privacy Policy](https://chromafora.com/privacy-policy) [Cookie Policy](https://chromafora.com/cookie-policy)