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Description: Novel Approach to PFAS Removal Using a Highly Adsorbent Material and a Robust...
Novel Approach to PFAS Removal Using a Highly Adsorbent Material and a Robust Separator Minimizes Sorbent Usage and Waste Production
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Description: Novel Approach to PFAS Removal Using a Highly Adsorbent Material and a Robust...
Novel Approach to PFAS Removal Using a Highly Adsorbent Material and a Robust Separator Minimizes Sorbent Usage and Waste Production

Novel Approach to PFAS Removal Using a Highly Adsorbent Material and a Robust Separator Minimizes Sorbent Usage and Waste Production

Novel Approach to PFAS Removal Using a Highly Adsorbent Material and a Robust Separator Minimizes Sorbent Usage and Waste Production

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Description: Novel Approach to PFAS Removal Using a Highly Adsorbent Material and a Robust...
Novel Approach to PFAS Removal Using a Highly Adsorbent Material and a Robust Separator Minimizes Sorbent Usage and Waste Production
Abstract
Multiple studies were conducted to compare a new sorbent material with granular activated carbon (GAC), recording per- and polyfluoroalkyl substances (PFAS) adsorption rates and spent media volumes. The sorbent is maintained in a slurry and recirculated through a separator, which retains and concentrates the sorbent but allows clean water to pass through. Once the slurry reaches a target concentration, it is disposed and the system is filled with a new batch of sorbent. The studies revealed that PFAS adsorption rates were as much as 500 times higher than those of GAC when treating various matrices such as high-PFAS surface water and high- and low-salinity groundwater. In addition, the sorbent material was much more effective in removing smaller-chain PFAS compounds compared to GAC. Unlike other adsorption technologies, the adsorption/separation (ASP) technology features automated sorbent replacement on timed intervals to optimize performance by minimizing potential co-contamination and scaling effects. This paper reviews the elevated PFAS removal, reduced sorbent demand, and optimized replacement approach that result in significantly less operation and maintenance (O&M) costs than a GAC system.
This presentation describes how a unique sorbent has demonstrated specific adsorption rates for per- and polyfluoroalkyl substances (PFAS) that are up to 500 times higher than those achieved by granular activated carbon. The increased effective surface area and smaller diameter permit greater access to internal micro- and mesopores, thereby enhancing both long and short-chained PFAS removal. The process employs a separator made from a high-hardness material, allowing it to generate a highly-concentrated sorbent suspension without abrasion to the separator surface. This novel technology features automated sorbent replacement on timed intervals to optimize performance by minimizing potential co-contamination and scaling effects.
SpeakerHolland, Dave
Presentation time
16:05:00
16:25:00
Session time
16:00:00
17:30:00
SessionNot Forever Chemicals! We Can Get Rid of PFAS
Session number119
TopicMicroconstituents
TopicMicroconstituents
Author(s)
Dave Holland
Author(s)J. Quinnan2; T. Reid1; D. Holland1;
Author affiliation(s)Aqua-Aerobic Systems, Inc., Loves Park, IL1Arcadis, Novi, MI2
SourceProceedings of the Water Environment Federation
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Oct 2021
DOI10.2175/193864718825158007
Volume / Issue
Content sourceWEFTEC
Copyright2021
Word count21

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Novel Approach to PFAS Removal Using a Highly Adsorbent Material and a Robust Separator Minimizes Sorbent Usage and Waste Production
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Description: Novel Approach to PFAS Removal Using a Highly Adsorbent Material and a Robust...
Novel Approach to PFAS Removal Using a Highly Adsorbent Material and a Robust Separator Minimizes Sorbent Usage and Waste Production
Abstract
Multiple studies were conducted to compare a new sorbent material with granular activated carbon (GAC), recording per- and polyfluoroalkyl substances (PFAS) adsorption rates and spent media volumes. The sorbent is maintained in a slurry and recirculated through a separator, which retains and concentrates the sorbent but allows clean water to pass through. Once the slurry reaches a target concentration, it is disposed and the system is filled with a new batch of sorbent. The studies revealed that PFAS adsorption rates were as much as 500 times higher than those of GAC when treating various matrices such as high-PFAS surface water and high- and low-salinity groundwater. In addition, the sorbent material was much more effective in removing smaller-chain PFAS compounds compared to GAC. Unlike other adsorption technologies, the adsorption/separation (ASP) technology features automated sorbent replacement on timed intervals to optimize performance by minimizing potential co-contamination and scaling effects. This paper reviews the elevated PFAS removal, reduced sorbent demand, and optimized replacement approach that result in significantly less operation and maintenance (O&M) costs than a GAC system.
This presentation describes how a unique sorbent has demonstrated specific adsorption rates for per- and polyfluoroalkyl substances (PFAS) that are up to 500 times higher than those achieved by granular activated carbon. The increased effective surface area and smaller diameter permit greater access to internal micro- and mesopores, thereby enhancing both long and short-chained PFAS removal. The process employs a separator made from a high-hardness material, allowing it to generate a highly-concentrated sorbent suspension without abrasion to the separator surface. This novel technology features automated sorbent replacement on timed intervals to optimize performance by minimizing potential co-contamination and scaling effects.
SpeakerHolland, Dave
Presentation time
16:05:00
16:25:00
Session time
16:00:00
17:30:00
SessionNot Forever Chemicals! We Can Get Rid of PFAS
Session number119
TopicMicroconstituents
TopicMicroconstituents
Author(s)
Dave Holland
Author(s)J. Quinnan2; T. Reid1; D. Holland1;
Author affiliation(s)Aqua-Aerobic Systems, Inc., Loves Park, IL1Arcadis, Novi, MI2
SourceProceedings of the Water Environment Federation
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Oct 2021
DOI10.2175/193864718825158007
Volume / Issue
Content sourceWEFTEC
Copyright2021
Word count21

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Dave Holland. Novel Approach to PFAS Removal Using a Highly Adsorbent Material and a Robust Separator Minimizes Sorbent Usage and Waste Production. Water Environment Federation, 2021. Web. 10 Oct. 2025. <https://www.accesswater.org?id=-10077793CITANCHOR>.
Dave Holland. Novel Approach to PFAS Removal Using a Highly Adsorbent Material and a Robust Separator Minimizes Sorbent Usage and Waste Production. Water Environment Federation, 2021. Accessed October 10, 2025. https://www.accesswater.org/?id=-10077793CITANCHOR.
Dave Holland
Novel Approach to PFAS Removal Using a Highly Adsorbent Material and a Robust Separator Minimizes Sorbent Usage and Waste Production
Access Water
Water Environment Federation
October 18, 2021
October 10, 2025
https://www.accesswater.org/?id=-10077793CITANCHOR