Multiphysics Numerical Modeling of Transient Transport of PFAS

Pierrette Iradukunda; Arvin Farid

doi:10.1061/9780784484050.016

Multiphysics Numerical Modeling of Transient Transport of PFAS

Pierrette Iradukunda, Arvin Farid

Civil Engineering Department

Boise State University

Research output: Contribution to journal › Conference article › peer-review

5 Scopus citations

Abstract

The need to understand the fate and transport of Per- and Polyfluoroalkyl substances (PFAS) has grown due to the widespread contamination of the environment by them. PFAS are persistent, mobile, toxic manmade chemicals of great concern that contribute to the contamination of soil and groundwater. The presence of PFAS in unsaturated soil complicates their transport due to the impact of the air–water interface and solid-phase adsorption. The air–water interface can significantly increase the retention of PFAS during its transport. In this paper, a numerical model has been developed to study the transport of PFAS by coupling transient seepage and advection-dispersion, also accounting for the air–water interface and solid-phase adsorption. The numerical model was then used to study various scenarios.

Original language	English
Pages (from-to)	149-158
Number of pages	10
Journal	Geotechnical Special Publication
Volume	2022-March
Issue number	GSP 335
DOIs	https://doi.org/10.1061/9780784484050.016
State	Published - 2022
Event	2022 GeoCongress: State of the Art and Practice in Geotechnical Engineering - Geoenvironmental Engineering; Unsaturated Soils; and Contemporary Topics in Erosion, Sustainability, and Coal Combustion Residuals - Charlotte, United States Duration: 20 Mar 2022 → 23 Mar 2022

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title = "Multiphysics Numerical Modeling of Transient Transport of PFAS",

abstract = "The need to understand the fate and transport of Per- and Polyfluoroalkyl substances (PFAS) has grown due to the widespread contamination of the environment by them. PFAS are persistent, mobile, toxic manmade chemicals of great concern that contribute to the contamination of soil and groundwater. The presence of PFAS in unsaturated soil complicates their transport due to the impact of the air–water interface and solid-phase adsorption. The air–water interface can significantly increase the retention of PFAS during its transport. In this paper, a numerical model has been developed to study the transport of PFAS by coupling transient seepage and advection-dispersion, also accounting for the air–water interface and solid-phase adsorption. The numerical model was then used to study various scenarios.",

author = "Pierrette Iradukunda and Arvin Farid",

note = "Publisher Copyright: {\textcopyright} ASCE; 2022 GeoCongress: State of the Art and Practice in Geotechnical Engineering - Geoenvironmental Engineering; Unsaturated Soils; and Contemporary Topics in Erosion, Sustainability, and Coal Combustion Residuals ; Conference date: 20-03-2022 Through 23-03-2022",

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doi = "10.1061/9780784484050.016",

language = "English",

volume = "2022-March",

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TY - JOUR

T1 - Multiphysics Numerical Modeling of Transient Transport of PFAS

AU - Iradukunda, Pierrette

AU - Farid, Arvin

N1 - Publisher Copyright: © ASCE

PY - 2022

Y1 - 2022

N2 - The need to understand the fate and transport of Per- and Polyfluoroalkyl substances (PFAS) has grown due to the widespread contamination of the environment by them. PFAS are persistent, mobile, toxic manmade chemicals of great concern that contribute to the contamination of soil and groundwater. The presence of PFAS in unsaturated soil complicates their transport due to the impact of the air–water interface and solid-phase adsorption. The air–water interface can significantly increase the retention of PFAS during its transport. In this paper, a numerical model has been developed to study the transport of PFAS by coupling transient seepage and advection-dispersion, also accounting for the air–water interface and solid-phase adsorption. The numerical model was then used to study various scenarios.

AB - The need to understand the fate and transport of Per- and Polyfluoroalkyl substances (PFAS) has grown due to the widespread contamination of the environment by them. PFAS are persistent, mobile, toxic manmade chemicals of great concern that contribute to the contamination of soil and groundwater. The presence of PFAS in unsaturated soil complicates their transport due to the impact of the air–water interface and solid-phase adsorption. The air–water interface can significantly increase the retention of PFAS during its transport. In this paper, a numerical model has been developed to study the transport of PFAS by coupling transient seepage and advection-dispersion, also accounting for the air–water interface and solid-phase adsorption. The numerical model was then used to study various scenarios.

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DO - 10.1061/9780784484050.016

M3 - Conference article

AN - SCOPUS:85126970873

SN - 0895-0563

VL - 2022-March

SP - 149

EP - 158

JO - Geotechnical Special Publication

JF - Geotechnical Special Publication

IS - GSP 335

T2 - 2022 GeoCongress: State of the Art and Practice in Geotechnical Engineering - Geoenvironmental Engineering; Unsaturated Soils; and Contemporary Topics in Erosion, Sustainability, and Coal Combustion Residuals

Y2 - 20 March 2022 through 23 March 2022

ER -

Multiphysics Numerical Modeling of Transient Transport of PFAS

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