Grantee Research Project Results
2022 Progress Report: Fundamentals of Adsorption, Desorption, and Biodegradation of PFAS and Precursor Compounds in the Soil and Landfill Leachate System and An Innovative Treatment Strategy for Their Removal in Landfill Leachate and Groundwater
EPA Grant Number: R839660Title: Fundamentals of Adsorption, Desorption, and Biodegradation of PFAS and Precursor Compounds in the Soil and Landfill Leachate System and An Innovative Treatment Strategy for Their Removal in Landfill Leachate and Groundwater
Investigators: Xiao, Feng
Institution: University of North Dakota
EPA Project Officer: Hahn, Intaek
Project Period: August 1, 2019 through July 31, 2022 (Extended to July 31, 2023)
Project Period Covered by this Report: August 1, 2021 through July 31,2022
Project Amount: $498,907
RFA: Practical Methods to Analyze and Treat Emerging Contaminants (PFAS) in Solid Waste, Landfills, Wastewater/Leachates, Soils, and Groundwater to Protect Human Health and the Environment (2018) RFA Text | Recipients Lists
Research Category: PFAS Treatment , Drinking Water , Water , Human Health , Water Quality
Objective:
- Identify the governing soil sorption and desorption mechanisms (thermodynamics and hysteresis) of per- and polyfluoroalkyl substances (PFAS) in landfill leachate.
- Investigate the biodegradation of sorbed precursor compounds of perfluoroalkyl acids (PFAAs) and examine the effect of sorption hysteresis.
- Innovatively integrate and enhance commonly used water treatment technologies to effectively and practically remove PFAS from the test water.
Progress Summary:
(1) database of soil sorption and desorption of cationic and zwitterionic PFAS compounds; (2) publications documenting the effects of PFAS and soil properties on the sorption and desorption hysteresis; (3) preliminary data for the innovative treatment strategy to remove PFAS from water and decompose the compounds on granular activated carbon; (4) database and publications documenting PFAS thermal stability; (5) database and publications documenting PFAS decomposition during GAC thermal reactivation; and (6) preliminary results on the biodegradation of precursor compounds of PFOA and PFOS.
The progress outcomes include an increase in the ability to predict the fate of PFAS in the soil environment and an increase in the ability to remove and decompose PFAS from the drinking-water treatment system.
Journal Articles on this Report : 5 Displayed | Download in RIS Format
| Other project views: | All 15 publications | 13 publications in selected types | All 13 journal articles |
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Xiao F, Sasi PC, Alinezhad A, Golovko SA, Golovko MY, Spoto A. Thermal decomposition of anionic, zwitterionic, and cationic polyfluoroalkyl substances in aqueous film-forming foams. Environmental Science & Technology 2021;55(14):9885-94. |
R839660 (2022) |
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Alinezhad A, Challa Sasi P, Zhang P, Yao B, Kubátová A, Golovko SA, Golovko MY, Xiao F. An Investigation of Thermal Air Degradation and Pyrolysis of Per-and Polyfluoroalkyl Substances and Aqueous Film-Forming Foams in Soil. Acs Es&T Engineering 2022;2(2):198-209.. |
R839660 (2022) |
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Xiao F. An Overview of the Formation of PFOA and PFOS in Drinking-Water and Wastewater Treatment Processes. Journal of Environmental Engineering 2022;148(4):01822001. |
R839660 (2022) |
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Lyu X, Xiao F, Shen C, Chen J, Park CM, Sun Y, Flury M, Wang D. Per‐and Polyfluoroalkyl Substances (PFAS) in Subsurface Environments:Occurrence, Fate, Transport, and Research Prospect. Reviews of Geophysics 2022;60(3):e2021RG000765. |
R839660 (2022) |
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Liu F, Guan X, Xiao F. Photodegradation of per-and polyfluoroalkyl substances in water:A review of fundamentals and applications. Journal of Hazardous Materials 2022:129580. |
R839660 (2022) |
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Supplemental Keywords:
Adsorption; desorption; degradation; practical removal; enhanced water treatment
Progress and Final Reports:
Original AbstractThe perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.