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It is essential to predict the mobility of F\n                    <jats:sup>\u2212<\/jats:sup>\n                    in geothermal reservoirs compared to that of chloride (Cl\n                    <jats:sup>\u2212<\/jats:sup>\n                    ). Column experiments were conducted at 45\u00b0C under hydrostatic pressures from atmospheric pressure to 12\u2009MPa to simulate geothermal reservoir conditions, with the computer code CXTFIT 2.1 used to fit the data and determine transport and adsorption parameters of Cl\n                    <jats:sup>\u2212<\/jats:sup>\n                    and F\n                    <jats:sup>\u2212<\/jats:sup>\n                    . The effect of hydrostatic pressure on F\n                    <jats:sup>\u2212<\/jats:sup>\n                    transport was evaluated. Results showed that the Convection\u2013Dispersion Equation (CDE) accurately fits the breakthrough curves of Cl\n                    <jats:sup>\u2212<\/jats:sup>\n                    and higher pressures enhance its dispersion transport. In contrast, F\n                    <jats:sup>\u2212<\/jats:sup>\n                    transport under atmospheric pressure shows rate\u2010limited non\u2010equilibrium, with the Two\u2010Site Model (TSM) fitting F\n                    <jats:sup>\u2212<\/jats:sup>\n                    curves better. However, when pressure exceeds 6\u2009MPa, equilibrium adsorption becomes more pronounced, and the equilibrium CDE better characterizes F\n                    <jats:sup>\u2212<\/jats:sup>\n                    transport. Higher pressure also increases the retardation factor (\n                    <jats:italic>R<\/jats:italic>\n                    ) of F\n                    <jats:sup>\u2212<\/jats:sup>\n                    , suggesting more instantaneous adsorption sites under these conditions. The release of hydroxide (OH\n                    <jats:sup>\u2212<\/jats:sup>\n                    ) during F\n                    <jats:sup>\u2212<\/jats:sup>\n                    adsorption increases pH values in the effluent notably. Moreover, greater pH fluctuations occur with increasing pressure due to the enhanced adsorption of F\n                    <jats:sup>\u2212<\/jats:sup>\n                    by the packed matrix. The findings would be helpful for understanding the solute transport and adsorption mechanism of fluoride under varying hydrostatic pressures in groundwater and geothermal systems.\n                  <\/jats:p>","DOI":"10.1111\/gwat.70032","type":"journal-article","created":{"date-parts":[[2025,11,18]],"date-time":"2025-11-18T13:14:18Z","timestamp":1763471658000},"page":"889-901","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Hydrostatic Pressure Effect on the Transport of Fluoride in a Loose\u2010Pore Geothermal Reservoir"],"prefix":"10.1111","volume":"63","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5799-6799","authenticated-orcid":false,"given":"Li","family":"Zhao","sequence":"first","affiliation":[{"name":"Henan Key Laboratory of Coal Measure Unconventional Resources Accumulation and Exploitation, School of Resources and Environment Henan Polytechnic University  Jiaozuo 454000 China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-1772-6114","authenticated-orcid":false,"given":"Hongbo","family":"Hu","sequence":"additional","affiliation":[{"name":"Henan Key Laboratory of Coal Measure Unconventional Resources Accumulation and Exploitation, School of Resources and Environment Henan Polytechnic University  Jiaozuo 454000 China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2021-284X","authenticated-orcid":false,"given":"Qing","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mingfei","family":"Xing","sequence":"additional","affiliation":[{"name":"Henan Key Laboratory of Coal Measure Unconventional Resources Accumulation and Exploitation, School of Resources and Environment Henan Polytechnic University  Jiaozuo 454000 China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yifei","family":"Liu","sequence":"additional","affiliation":[{"name":"Henan Key Laboratory of Coal Measure Unconventional Resources Accumulation and Exploitation, School of Resources and Environment Henan Polytechnic University  Jiaozuo 454000 China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wangxu","family":"Zhou","sequence":"additional","affiliation":[{"name":"Henan Key Laboratory of Coal Measure Unconventional Resources Accumulation and Exploitation, School of Resources and Environment Henan Polytechnic University  Jiaozuo 454000 China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2025,11,18]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/gwat.13086"},{"issue":"1","key":"e_1_2_8_3_1","first-page":"1","article-title":"Policy recommendations for mitigating the impact of fluoride toxicity on aquatic life and its influence on domestic tourism","volume":"57","author":"Ahmad M.S.","year":"2024","journal-title":"Fluoride"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.envpol.2022.118820"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1080\/09593330.2022.2141662"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jhydrol.2021.127368"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijthermalsci.2017.08.003"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.sciaf.2023.e01562"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/0169-7722(89)90010-7"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jes.2021.07.005"},{"key":"e_1_2_8_11_1","doi-asserted-by":"crossref","unstructured":"Chandel A. andD.Swamib.2021.Review of non\u2010equilibrium flow and transport models in saturated porous media. 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