Version 1
: Received: 11 March 2024 / Approved: 14 March 2024 / Online: 14 March 2024 (09:57:50 CET)
How to cite:
Cao, W.; Yan, G.; Hofmann, H.; Scheuermann, A. State-of-the-art on Fe Precipitation in Porous Media: Hydrogeochemical Processes and Evolving Parameters. Preprints2024, 2024030842. https://doi.org/10.20944/preprints202403.0842.v1
Cao, W.; Yan, G.; Hofmann, H.; Scheuermann, A. State-of-the-art on Fe Precipitation in Porous Media: Hydrogeochemical Processes and Evolving Parameters. Preprints 2024, 2024030842. https://doi.org/10.20944/preprints202403.0842.v1
Cao, W.; Yan, G.; Hofmann, H.; Scheuermann, A. State-of-the-art on Fe Precipitation in Porous Media: Hydrogeochemical Processes and Evolving Parameters. Preprints2024, 2024030842. https://doi.org/10.20944/preprints202403.0842.v1
APA Style
Cao, W., Yan, G., Hofmann, H., & Scheuermann, A. (2024). State-of-the-art on Fe Precipitation in Porous Media: Hydrogeochemical Processes and Evolving Parameters. Preprints. https://doi.org/10.20944/preprints202403.0842.v1
Chicago/Turabian Style
Cao, W., Harald Hofmann and Alexander Scheuermann. 2024 "State-of-the-art on Fe Precipitation in Porous Media: Hydrogeochemical Processes and Evolving Parameters" Preprints. https://doi.org/10.20944/preprints202403.0842.v1
Abstract
The mixing of terrestrial groundwater and seawater creates dynamic reaction zones in intertidal areas, where land-derived Fe(II) is oxidized to Fe(III) and then precipitates as Fe hydroxides at groundwater-seawater interface. These hydrogeochemical processes contribute to the formation of iron curtains beneath soil surface, which in turn influences the evolution of coastal aquifers. This paper provides a comprehensive review of physical and geochemical processes at field scale in coastal areas, explores the impact of mineral precipitation on pore structure at pore scale, and synthesizes reactive transport modeling (RTM) approaches for illustrating continuum-scale soil physio-chemical parameters during the evolution of porous media. Upon this review, knowledge gaps and research needs are identified. Additionally, challenges and opportunities are presented. Therefore, the incorporation of observational data into a comprehensive physico-mathematical model becomes imperative for capturing the pore-scale processes in porous media and their influence on groundwater flow and solute transport at large scales. Furthermore, a synergistic approach integrating pore-scale modeling and non-invasive imaging can provide detailed insights into intricate fluid-pore-solid interactions for future studies, as well as facilitate the development of regional engineering-scale models and physio-chemical coupled models with diverse applications in submarine science and engineering.
Keywords
groundwater-seawater mixing; oxidative precipitation of Fe(II); permeability/tortuosity–porosity relationship; specific surface area; reactive transport modeling; non-invasive imaging
Subject
Engineering, Civil Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
