--- title: Granular Activated Carbon | Chromafora description: Chromafora offers granular activated carbon (GAC) treatment for PFAS – standalone or as a polishing step alongside SELPAXT and flocculation. --- [Skip to content](https://chromafora.com/granular-activated-carbon-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) / - Granular Activated Carbon # Granular Activated Carbon ## A proven adsorption technology – used where it's genuinely the right fit  GAC is one of the most established PFAS treatment technologies available, and remains a reliable option for many water streams – particularly for removing long-chain PFAS. We offer GAC as a standalone treatment for simpler water matrices, or as a polishing step within a broader Chromafora treatment train. **Where GAC works well**  GAC removes PFAS by adsorption: contaminated water passes through a bed of activated carbon, and PFAS molecules bind to the porous carbon surface. It performs well on long-chain PFAS in relatively clean water, and is a familiar, well-understood technology to design, permit and operate. In complex matrices such as landfill leachate, high dissolved organic carbon (DOC), ammonia and salts compete with PFAS for adsorption sites. This reduces GAC's capacity for short- and ultra-short-chain PFAS and can bring forward breakthrough, requiring more frequent media replacement than in cleaner water. That's why GAC often performs best either on simpler streams, or as a polishing stage placed after a primary PFAS-selective technology has already reduced the PFAS and organic load. ## Key considerations for landfill leachate applications ### Best suited to long-chain PFAS Adsorption efficiency is lower for short- and ultra-short-chain compounds. ### Sensitive to organic load High DOC in leachate reduces capacity and can accelerate breakthrough. ### Familiar to operate Integrates easily into existing treatment infrastructure and permitting frameworks. ### Rising lifecycle costs Spent carbon requires replacement or reactivation, and disposal/incineration costs continue to increase. ## Where it fits #### **Polishing step** Placed after SELPAXT or flocculation, GAC benefits from a reduced PFAS and organic load, extending media life and lowering replacement frequency. #### **Standalone treatment** For simpler water matrices dominated by long-chain PFAS, where fouling risk is limited. #### **Existing GAC systems** Adding upstream protection to a system you already operate, to restore performance and predictability. ## Do you want to know if GAC is the right fit? Removal performance, replacement frequency and lifecycle cost all depend on your specific water matrix and PFAS profile. Our team can help you evaluate whether GAC, alone or combined with another Chromafora technology, is the most cost-effective long-term solution for your site. [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)