Proceedings of the 2024 6th International Conference on Civil Engineering, Environment Resources and Energy Materials (CCESEM 2024)

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Simulation Study on Co-Transport of Typical PFAS and Their Precursors in Saturated Porous Media

Authors
Yue Zhang1, Ni Yan1, *
1Key Lab of Marine Environmental Science and Ecology, Ministry of Education, College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
*Corresponding author. Email: yanni@ouc.edu.cn
Corresponding Author
Ni Yan
Available Online 24 December 2024.
DOI
10.2991/978-94-6463-606-2_48How to use a DOI?
Keywords
PFAS; PFAS precursors; saturated porous media; co-transport; simulation
Abstract

Per- and polyfluoroalkyl substances (PFAS) are widely present in soil and groundwater environments. PFAS precursors serve as the primary indirect sources contributing to widespread PFAS contamination. The migration process of PFAS precursors often involves their transformation into more stable PFAS compounds, resulting in co-transport phenomena of precursors and transformation products in groundwater. In this study, a one-dimensional convection-dispersion model coupled with a dual-domain adsorption model was employed to investigate the mutual influence of PFOS and its precursor PFOSA on their migration process in saturated porous media. Simulation results demonstrate that PFOSA reduces the instantaneous adsorption of PFOS, thereby decreasing the overall retardation of PFOS migration in saturated porous media. Conversely, the instantaneous adsorption of PFOS also decreases PFOSA migration, leading to an overall increase in PFOSA retardation in saturated porous media. These findings contribute to a deeper understanding of how PFAS and their precursors behave in the environment.

Copyright
© 2024 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 2024 6th International Conference on Civil Engineering, Environment Resources and Energy Materials (CCESEM 2024)
Series
Advances in Engineering Research
Publication Date
24 December 2024
ISBN
978-94-6463-606-2
ISSN
2352-5401
DOI
10.2991/978-94-6463-606-2_48How to use a DOI?
Copyright
© 2024 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Yue Zhang
AU  - Ni Yan
PY  - 2024
DA  - 2024/12/24
TI  - Simulation Study on Co-Transport of Typical PFAS and Their Precursors in Saturated Porous Media
BT  - Proceedings of the 2024 6th International Conference on Civil Engineering, Environment Resources and Energy Materials (CCESEM 2024)
PB  - Atlantis Press
SP  - 461
EP  - 467
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-606-2_48
DO  - 10.2991/978-94-6463-606-2_48
ID  - Zhang2024
ER  -