Grantee Research Project Results
2020 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, 2019 through July 31,2020
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:
Progress on this grant so far includes: (1) a 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; and (3) preliminary data collected for the innovative treatment strategy to remove PFAS from water and decompose the compounds on granular activated carbon.
The progress outcomes include an increase in the ability to predict the fate of PFAS in the soil environment.
Future Activities:
Research on (1) the biodegradation of precursor compounds of certain perfluoroalkyl substances in the soil environment; (2) the effect of sorption and sorption hysteresis on the bioavailability of precursor compounds of a few commonly detected perfluoroalkyl substances; (3) the adsorption of PFAS in the soil‒leachate system; and (4) an innovative treatment system to remove and destroy PFAS of various types in landfill leachate.
Journal Articles on this Report : 4 Displayed | Download in RIS Format
| Other project views: | All 15 publications | 13 publications in selected types | All 13 journal articles |
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Jin N, Swetha M, Golovko S, Golovko M, Xiao F. In Vivo Generation of PFOA, PFOS and Other Compounds from Cationic and Zwitterionic Per-and Polyfluoroalkyl Substances in a Terrestrial Invertebrate (Lumbricus terrestris). Presented at the 260th ACS National Meeting, San Francisco, CA, 2020. |
R839660 (2020) |
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Xiao F, Jin B, Golovko SA, Golovko MY, Xing B. Sorption and desorption mechanisms of cationic and zwitterionic per-and polyfluoroalkyl substances in natural soils:Thermodynamics and hysteresis. Environmental science & technology 2019;53(20):11818-27. |
R839660 (2020) |
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Xiao F, Sasi PC, Yao B, Kubátová A, Golovko SA, Golovko MY, Soli D. Thermal Stability and Decomposition of Perfluoroalkyl Substances on Spent Granular Activated Carbon. Environmental Science & Technology Letters 2020;7(5):343-50. |
R839660 (2020) |
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Jin B, Mallula S, Golovko SA, Golovko MY, Xiao F. In Vivo Generation of PFOA, PFOS, and Other Compounds from Cationic and Zwitterionic Per-and Polyfluoroalkyl Substances in a Terrestrial Invertebrate (Lumbricus terrestris). Environmental Science & Technology 2020. |
R839660 (2020) |
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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.