ABOUT CYCLOPURE

Cyclopure is a leading PFAS treatment company built around one breakthrough: DEXSORB®, the first-ever fully regenerable, PFAS-selective adsorbent engineered specifically for engineered water systems.

Unlike conventional technologies that rely on non-selective adsorption, DEXSORB is designed at the molecular level to target PFAS directly. Its uniform cyclodextrin cavities selectively bind PFAS, enabling removal to non-detect levels with higher capacity, faster kinetics, and greater resistance to interference from organic matter and dissolved ions. The result is longer run times, fewer changeouts, and more reliable performance across drinking water, groundwater, wastewater, and industrial applications.

DEXSORB consistently outperforms legacy media such as granular activated carbon and ion exchange, delivering 3–4x higher capacity, significantly shorter empty bed contact times, and reduced system footprint. For utilities and engineers, this translates into lower capital requirements, reduced operational burden, and lower cost per gallon treated.

Cyclopure is also among the only companies offering regenerable PFAS-selective media that restores performance while concentrating PFAS into a manageable waste stream. This capability reduces disposal volume, extends media life, and supports a more cost-effective and responsible treatment approach.

With deployments across municipal, industrial, and remediation sites worldwide, DEXSORB is proven in real-world conditions, not just controlled environments.

Built for PFAS. Proven to non-detect.

Cyclopure enables engineered systems to achieve higher performance, longer life, and greater certainty in PFAS treatment.

SCIENTIFIC EXPERTISE

Modern water treatment demands highly selective adsorbents to combat complex PFAS contamination. By leveraging dual-action molecular cavities, these stable polymers provide rapid kinetics, resist organic fouling, and support sustainable regeneration for superior environmental remediation.

DEXSORB is a regenerable adsorbent media offering a cradle-to-grave solution in per- and polyfl uoroalkyl substances (PFAS) treatment. Effective desorption of PFAS from spent media is not only a critical step for enabling sustainable media reuse, but also for concentrating PFAS waste for its safe and cost-effective destruction.

DEXSORB is a novel adsorbent made from crosslinked β-cyclodextrin polymers. The media features uniform 0.78 nm hydrophobic cavities that selectively adsorb organic contaminants in the 150 – 1000 Dalton molecular weight range. DEXSORB is available in two formulations to adsorb (A) PFAS exclusively, or (B) PFAS + organic micropollutants (OMPs) in combination. While DEXSORB and GAC operate by the same mechanism of adsorption, and share similar physiochemical properties, DEXSORB possesses multiple properties that provide for superior PFAS removal and waste handling.

CASE STUDIES

Discover how specialized cyclodextrin media treated over 65,000 gallons of highly concentrated reject water, achieving total removal of key target compounds across a 64-day trial without interference from complex background chemistry.

Discover how packed-bed filtration downstream of a membrane bioreactor treated nearly 280,000 gallons of landfill leachate, maintaining smooth hydraulic operation without biofouling while removing targeted fluorinated contaminants across 218 continuous days of testing.

Discover how a multi-vessel packed-bed filtration system treated over 150,000 gallons of post-MBR landfill leachate, achieving complete removal of target compounds across 102 continuous days without biofouling or required backwash cycles.

Discover how high-capacity polymer adsorbent media achieves non-detect contaminant levels in industrial wastewater streams, delivering a seventeen-fold capacity advantage that dramatically reduces media volume requirements and operational change-out frequency.

Discover how a dual-vessel lead-lag system treated over 300,000 gallons of industrial wastewater, maintaining stable hydraulic performance and reducing target contaminants to single-digit levels to meet strict municipal sewer discharge standards.

Discover how a dual-vessel packed-bed adsorbent system achieved over 97% reduction of target industrial contaminants, enabling continuous sewer discharge compliance across 650 days of operational performance without media replacement.

Discover how retrofitting existing treatment vessels with specialized adsorbent media resolved mineral fouling issues, operating for over 400 days to consistently deliver non-detect levels of target contaminants in municipal groundwater.

Discover how upgrading existing filter infrastructure with advanced adsorbent media provided over 600 days of continuous PFAS removal, treating millions of gallons of contaminated groundwater to achieve strict drinking water compliance.

Discover how a dual-vessel lead-lag media system achieved continuous non-detect levels for target legacy contaminants, treating over 250,000 gallons of surface water to support regulatory compliance and municipal drinking water goals.

Widespread chemical contamination leaves many small water systems without viable testing options.Discover how an innovative, plant-based extraction method delivers affordable, highly accurate screening to identify complex contaminants and protect public health.

A DWTP client in Alaska detected elevated PFAS contamination levels in two groundwater wells supplying drinking water to 85 service connections. PFAS concentrations are provided in Table 1, where combined concentration of EPA PFAS6 was detected at 490 to 810 ppt.

Cyclopure was invited to replace ion exchange resin to remove PFAS from groundwater at a groundwater pump station, located in New Jersey. The decision to replace IXR was due to poor PFAS removal caused by manganese fouling.

A metal plating service provider detected twelve PFAS at a total concentration of 36,704 ppt in the final process water at its Michigan facility. PFOS was detected at 840 ppt on average, in excess of the city PFOS discharge limit of 28 ppt.

CONFERENCE SCHEDULE

AL/MS Water Joint Annual Conference

Mobile, AL April 13, 2026
Ohio AWWA Southwest District Spring Meeting Trenton, OH April 14, 2026
ITRC Annual Meeting Salt Lake City, UT April 20-22, 2026
INCITE PFAS Workshop Seville, Spain May 5-6, 2026
Battelle's Chlorinated Conference Fort Worth, TX June 1-4, 2026
AWWA ACE26 Annual Conference & Expo Washington, DC June 21-24, 2026
SERDP & ESTCP PFAS Project Meeting Long Beach, CA July 20-23, 2026
WEFTEC New Orleans, LA September 28-30, 2026

 

CONTACT INFORMATION

Cyclopure

710 Clark Street, Suite 350

Evanston, IL 60201