4.8 Article

Factors Affecting the Adsorption of Per- and Polyfluoroalkyl Substances (PFAS) by Colloidal Activated Carbon

Related references

Note: Only part of the references are listed.
Article Engineering, Environmental

In-situ application of colloidal activated carbon for PFAS-contaminated soil and groundwater: A Swedish case study

Georgios Niarchos et al.

Summary: This case study investigates the potential of colloidal activated carbon (CAC) for soil stabilization to trap PFAS and prevent their leaching into groundwater. Monitoring the site revealed a initial reduction of n-ary sumation (11)PFAS and high removal rates for long-chain PFAS after CAC application. However, a rebound in concentrations was noticed 6 months later, indicating the need for detailed hydrogeological understanding before applying stabilization techniques.

REMEDIATION-THE JOURNAL OF ENVIRONMENTAL CLEANUP COSTS TECHNOLOGIES & TECHNIQUES (2023)

Article Environmental Sciences

Effects of anionic hydrocarbon surfactant on the transport of perfluorooctanoic acid (PFOA) in natural soils

Qi Zhang et al.

Summary: The study found that the use of anionic hydrocarbon surfactants significantly enhances the transport of perfluorooctanoic acid (PFOA), particularly on soils with more negatively charged surfaces and larger particle sizes. The enhancement effect of the surfactant was more significant with Ca2+ compared to Na+.

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2022)

Article Engineering, Environmental

In-situ sequestration of perfluoroalkyl substances using polymer-stabilized ion exchange resin

Chen Liu et al.

Summary: The study evaluated the in situ delivery and PFAS sorption capacity of a polymer-stabilized ion exchange resin, showing promising results in adsorbing PFAS in a certain concentration range. Injection of the resin into quartz sand increased retention of PFOA or PFOS significantly, suggesting a potential effective in situ remediation strategy for PFAS-impacted groundwater plumes.

JOURNAL OF HAZARDOUS MATERIALS (2022)

Article Environmental Sciences

Implication of cation-bridging interaction contribution to sorption of perfluoroalkyl carboxylic acids by soils

Wenfeng Wang et al.

Summary: Experimental results suggest that multivalent exchangeable cations play a significant role in the sorption and transport of PFCAs in soils, with Ca2+ and Fe3+ soils exhibiting higher sorption capacities for PFCAs compared to K+ soils.

CHEMOSPHERE (2022)

Review Environmental Sciences

Global occurrence and probabilistic environmental health hazard assessment of per- and polyfluoroalkyl substances (PFASs) in groundwater and surface waters

Jaylen L. Sims et al.

Summary: Per- and polyfluoroalkyl substances (PFASs) have gained global attention due to their chemical properties, environmental contamination, and risks to public health and the environment. This study examined the occurrence and distribution of 24 priority PFASs in global surface waters and groundwater, finding that PFASs levels were highest in rivers and streams, followed by lakes and reservoirs, and lowest in coastal and marine systems. The study also identified significant exceedances of drinking water guideline values for certain PFASs, particularly in Oceania and North America.

SCIENCE OF THE TOTAL ENVIRONMENT (2022)

Article Engineering, Environmental

Neutral Per- and Polyfluoroalkyl Substances, Butyl Carbitol, and Organic Corrosion Inhibitors in Aqueous Film-Forming Foams: Implications for Vapor Intrusion and the Environment

Ivan A. Titaley et al.

Summary: Per- and polyfluoroalkyl substances (PFAS), butyl carbitol, and corrosion inhibitors are components of aqueous film-forming foams (AFFFs). PFAS and corrosion inhibitors have been found in high concentrations in AFFFs, while butyl carbitol concentrations are lower. PFAS concentrations in indoor air due to vapor intrusion of AFFF releases are estimated to be significantly higher than background concentrations, while butyl carbitol and corrosion inhibitor concentrations are comparable to recent indoor measurements.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2022)

Review Engineering, Environmental

A review of recent studies on toxicity, sequestration, and degradation of per- and polyfluoroalkyl substances (PFAS)

Rebecca A. Dickman et al.

Summary: The fate, effects, and treatment of per- and polyfluoroalkyl substances (PFAS) are of great interest due to their widespread presence in the environment and significant toxicological effects on humans and wildlife. This article reviews selected papers from the Journal of Hazardous Materials on the toxicity, sequestration, and degradation of PFAS, and makes them available as open-access publications to facilitate the distribution of critical knowledge on PFAS. The review discusses routes of toxicity, observed human health effects, in-silico approaches for toxicity evaluation, removal methods, and degradation techniques for PFAS.

JOURNAL OF HAZARDOUS MATERIALS (2022)

Article Engineering, Environmental

Tools for Understanding and Predicting the Affinity of Per- and Polyfluoroalkyl Substances for Anion-Exchange Sorbents br

Bethany A. Parker et al.

Summary: The study investigates the electrostatic interactions between PFAS and an aminopropyl AE phase, and finds that the average electrostatic potential is positively correlated with the PFAS chromatographic retention time. However, electrostatic interactions alone cannot fully explain the affinity of PFAS for AE resins in water treatment/remediation scenarios.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2022)

Article Engineering, Environmental

Presumptive Contamination: A New Approach to PFAS Contamination Based on Likely Sources

Derrick Salvatore et al.

Summary: Despite increased research and regulatory attention, data on the scale, scope, and severity of PFAS releases and contamination in the United States are incomplete. This paper argues that in the absence of high-quality testing data, PFAS contamination can be presumed around certain types of facilities. By integrating nationwide data sets, 57,412 sites of presumptive PFAS contamination are identified, including industrial facilities, wastewater treatment plants, military sites, and airports.

ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS (2022)

Article Environmental Sciences

What is specific in adsorption of perfluoroalkyl acids on carbon materials?

Navid Saeidi et al.

Summary: The study found that chemical modification of activated carbon materials through amino-functionalization and thermal defunctionalization can significantly enhance the adsorption of PFOA and other PFAAs, with a focus on the importance of electrostatic interactions and charge compensation for PFAAs. The results contribute to the optimized selection of adsorbents for PFAA adsorption from water.

CHEMOSPHERE (2021)

Article Engineering, Environmental

Impact of a Hydrocarbon Surfactant on the Retention and Transport of Perfluorooctanoic Acid in Saturated and Unsaturated Porous Media

Yifan Ji et al.

Summary: The presence of sodium dodecyl sulfate (SDS) affected the adsorption of perfluorooctanoic acid (PFOA) at solid-water and air-water interfaces, with lower SDS concentrations showing similar retardation factors to those without SDS, but higher concentrations leading to increased retardation and enhanced adsorption at the interfaces. The model accurately predicted the transport behavior of PFOA and SDS, showing differential transport during the experiments and increased surface activity of PFOA in the presence of higher SDS concentrations.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2021)

Article Engineering, Environmental

The in situ treatment of TCE and PFAS in groundwater within a silty sand aquifer

Rick McGregor et al.

Summary: Chlorinated ethenes and PFAS have been identified as harmful chemicals in groundwater. In situ technologies are available for treating chlorinated ethenes, while options for treating PFAS are limited. Remediation approaches using adsorption, biotic, and abiotic degradation have been successful in removing these contaminants from groundwater.

REMEDIATION-THE JOURNAL OF ENVIRONMENTAL CLEANUP COSTS TECHNOLOGIES & TECHNIQUES (2021)

Article Engineering, Environmental

Understanding the effect of carbon surface chemistry on adsorption of perfluorinated alkyl substances

Navid Saeidi et al.

CHEMICAL ENGINEERING JOURNAL (2020)

Article Engineering, Environmental

In Situ Sequestration of Perfluoroalkyl Substances Using Polymer-Stabilized Powdered Activated Carbon

Chen Liu et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2020)

Article Chemistry, Analytical

An overview of the uses of per- and polyfluoroalkyl substances (PFAS)

Juliane Gluege et al.

ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS (2020)

Article Engineering, Environmental

Six pilot-scale studies evaluating the in situ treatment of PFAS in groundwater

Rick McGregor

REMEDIATION-THE JOURNAL OF ENVIRONMENTAL CLEANUP COSTS TECHNOLOGIES & TECHNIQUES (2020)

Review Environmental Sciences

A review of the pathways of human exposure to poly- and perfluoroalkyl substances (PFASs) and present understanding of health effects

Elsie M. Sunderland et al.

JOURNAL OF EXPOSURE SCIENCE AND ENVIRONMENTAL EPIDEMIOLOGY (2019)

Article Engineering, Environmental

Enhanced adsorption of perfluoro alkyl substances for in situ remediation

Yousof H. Aly et al.

ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY (2019)

Article Engineering, Environmental

Evaluating the longevity of a PFAS in situ colloidal activated carbon remedy

Grant R. Carey et al.

REMEDIATION-THE JOURNAL OF ENVIRONMENTAL CLEANUP COSTS TECHNOLOGIES & TECHNIQUES (2019)

Article Engineering, Environmental

Influence of groundwater conditions and co-contaminants on sorption of perfluoroalkyl compounds on granular activated carbon

Dinusha P. Siriwardena et al.

REMEDIATION-THE JOURNAL OF ENVIRONMENTAL CLEANUP COSTS TECHNOLOGIES & TECHNIQUES (2019)

Article Engineering, Environmental

In Situ treatment of PFAS-impacted groundwater using colloidal activated Carbon

Rick McGregor

REMEDIATION-THE JOURNAL OF ENVIRONMENTAL CLEANUP COSTS TECHNOLOGIES & TECHNIQUES (2018)

Article Engineering, Environmental

Effects of Aqueous Film-Forming Foams (AFFFs) on Trichloroethene (TCE) Dechlorination by a Dehalococcoides mccartyi-Containing Microbial Community

Katie C. Harding-Marjanovic et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2016)

Review Engineering, Environmental

Adsorption behavior and mechanism of perfluorinated compounds on various adsorbents-A review

Ziwen Du et al.

JOURNAL OF HAZARDOUS MATERIALS (2014)

Article Engineering, Environmental

Subsurface Transport Potential of Perfluoroalkyl Acids at Aqueous Film-Forming Foam (AFFF)-Impacted Sites

Jennifer L. Guelfo et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2013)

Article Engineering, Environmental

Low Molecular Weight Components in an Aquatic Humic Substance As Characterized by Membrane Dialysis and Orbitrap Mass Spectrometry

Christina K. Remucal et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2012)

Article Engineering, Environmental

Identification of Novel Fluorochemicals in Aqueous Film-Forming Foams Used by the US Military

Benjamin J. Place et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2012)

Article Engineering, Environmental

Effect of effluent organic matter on the adsorption of perfluorinated compounds onto activated carbon

Jing Yu et al.

JOURNAL OF HAZARDOUS MATERIALS (2012)

Article Environmental Sciences

Perfluoroalkyl and polyfluoroalkyl substances in the environment: Terminology, classification, and origins

Robert C Buck et al.

Integrated Environmental Assessment and Management (2011)

Article Engineering, Environmental

Effect of solution chemistry on the adsorption of perfluorooctane sulfonate onto mineral surfaces

Chuyang Y. Tang et al.

WATER RESEARCH (2010)

Article Chemistry, Multidisciplinary

High Lipophilicity of Perfluoroalkyl Carboxylate and Sulfonate: Implications for Their Membrane Permeability

Ping Jing et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2009)

Article Engineering, Environmental

Predicting the partitioning behavior of various highly fluorinated compounds

Hans Peter H. Arp et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2006)

Article Engineering, Environmental

Sorption of perfluorinated surfactants on sediments

Christopher P. Higgins et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2006)

Article Engineering, Environmental

Oil is a sedimentary supersorbent for polychlorinated biphenyls

MTO Jonker et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2006)

Article Engineering, Environmental

Sorption of polycyclic aromatic hydrocarbons to oil contaminated sediment: Unresolved complex?

MTO Jonker et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2003)