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PFOA and PFOS Remediation

Perfluoroalkyl Compounds: Perfluorooctane Sulfonic Acid (PFOS) and Perfluorooctanoic Acid (PFOA) Treatment

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     John Lombardo
     Product Manager
     781-506-9624 

As contaminated water supplies make national headlines more and more frequently, perfluorinated compounds (PFCs) have come under scrutiny by not just regulating bodies but also the public. Here’s how Evoqua can remedy and treat water supplies for PFOS and PFOA compounds.

Need a primer on PFCs? Learn more about PFOA/PFOS, the effects the man-made chemical compounds have on human health, and why treatment is needed.

 Evoqua's Solution for PFCs

Evoqua recommends granulated activated carbon (GAC) for treatment of PFOA and PFOS, which is also supported by the U.S. Environmental Protection Agency (see section entitled Steps to Limit Exposure, page 3). Our full line of GAC products are available in a wide range of mesh sizes and encompassing all carbon types. 

One of the most cost-effective of these options for PFSAs comes from coconuts: Evoqua’s AquaCarb® CX enhanced coconut shell GAC. AquaCarb CX series carbon combines the benefits of an activated carbon with the high micropore structure of coconut shell, with faster kinetics comparable to bituminous coal. The result is an excellent capacity for difficult-to-adsorb organics such as PFOA, PFOS, and other PFSAs, as well as adsorptive performance for other background organics. Evoqua supports AquaCarb CX carbon and other GAC installations through a nation-wide network of facilities fully equipped to evaluate applications and build adsorption systems. Evoqua is also equipped to reactivate spent AquaCarb CX carbon, a process that actually improves the medium's filtration performance, and return it to the field.

In addition to GAC media and services, Evoqua provides treatment equipment, including treatment vessels specifically designed for these types of applications, which are available to purchase or rent. The vessels can operate over a wide range of pressures with capacities from 5 to 2,000 GPM.

Standard features include:

  • An optimized underdrain system for lower pressure drops 
  • Durable, quality construction with 100% internally/externally welded seams
  • Abrasion and corrosion resistant internal epoxy coatings
  • Top and side manways that permit easy access and inspection of the underdrain system

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 About Evoqua

​For more than 40 years, Evoqua has been active in treating groundwater for the removal of organic and inorganic impurities like PFOS and PFOA. We were one of the first companies to provide remediation of impacted waters with the development of our activated carbon treatment packages for the removal of trichloroethylene (TCE). Since then, we have worked with water districts, impact communities, and industry in the removal of both organic compounds, including TCE, TCP, H2S, and inorganic contaminants including, arsenic, chrome, lead, perchlorate, and nitrate. Whether you are treating groundwater to meet discharge or drinking water standards, Evoqua has a solution.