Usefulness of the Cl/Br ratio to identify the effect of reverse osmosis treated waters on groundwater systems

Alcalá, Francisco

doi:10.1016/j.desal.2019.114102

Cited by 6 publications

(3 citation statements)

References 59 publications

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“…Over the Swiss Molasse plateau, such analysis on the geothermal waters circulating in the sedimentary units has never been performed before. Michard et al [70] investigated the chemical evolution of waters circulating in the Hercynian crystalline basement in NE Switzerland and identified the contribution of Permo-Carboniferous sediments dissolution in samples with high Na-Cl concentrations Cl/Br > 655. In the Geneva Basin, detectable Br − concentrations, representative of reservoir conditions, are available for the GEo-01 (0.03 meq/L) and Thonex-01 (0.02-0.07 meq/L), thanks to the recent sampling campaigns presented in this study, and the Cl/Br molar ratio ranges from 9 at GEo-01 to 145-168 at Thonex-01 (Figure 10).…”

Section: Chloride Vs Bromidementioning

confidence: 99%

Hydrochemical Characterization of Groundwaters’ Fluid Flow through the Upper Mesozoic Carbonate Geothermal Reservoirs in the Geneva Basin: An Evolution more than 15,000 Years Long

et al. 2022

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Groundwaters circulating in Upper Mesozoic carbonates are of great interest for geothermal heat production and storage applications in the Geneva area. This study aims at providing new insights and proposing new interpretations about the mineral-water reactions and the fluid-flow paths mechanisms across the Geneva Basin (GB). Data from previous studies are combined and improved by new ones collected from cold and hot springs and geothermal exploration wells in 2018 and 2020 in the framework of the GEothermies program and HEATSTORE project. Major ions, trace elements, and the isotopes of Oxygen, Hydrogen, Sulfur, Strontium, and Carbo have been analysed and the results show that the sampled waters have a meteoric origin, the carbonate aquifers act as preferential host rocks for geothermal waters, and partial contribution from the Cenozoic sediments can be observed in some samples. The Jura Mountains and the Saleve Ridge are the main catchment areas and an evolution from a pure Ca-HCO3 footprint for the cold springs, to a Na > Ca-HCO3 and a Na-Cl composutions, is observed at the two geothermal wells. The residence time is in the order of a few years for the cold springs and reaches up to 15–20,000 years for the deep wells.

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Section: Chloride Vs Bromidementioning

confidence: 99%

Hydrochemical Characterization of Groundwaters’ Fluid Flow through the Upper Mesozoic Carbonate Geothermal Reservoirs in the Geneva Basin: An Evolution more than 15,000 Years Long

et al. 2022

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“…The combination of global climate forces underlying human pressures threatens the fragile equilibrium required for a sustainable water supply and the good functioning of groundwater-dependent ecosystems (GDE) [5][6][7]. In many densely populated and irrigated drylands, external water transfer from other basins [8,9], and inner production of non-conventional resources such as urban wastewater reuse and seawater and brackish groundwater desalination to cope with water scarcity are being encouraged [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Combining of MASW and GPR Imaging and Hydrogeological Surveys for the Groundwater Resource Evaluation in a Coastal Urban Area in Southern Spain

et al. 2021

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This paper conceptualizes and evaluates the groundwater resource in a coastal urban area hydrologically influenced by peri-urban irrigation agriculture. Adra town in southern Spain was the case study chosen to evaluate the groundwater resource contributed from the northern steep urban sector (NSUS) to the southern flat urban sector (SFUS), which belongs to the Adra River Delta Groundwater Body (ARDGB). The methodology included (1) geological and hydrogeological data compilation; (2) thirteen Multichannel Analysis of Surface Waves (MASW), and eight Ground Penetrating Radar (GPR) profiles to define shallow geological structures and some hydrogeological features; (3) hydrogeological surveys for aquifer hydraulic definition; (4) conceptualization of the hydrogeological functioning; and (5) the NSUS groundwater resource evaluation. All findings were integrated to prepare a 1:5000 scale hydrogeological map and cross-sections. Ten hydrogeological formations were defined, four of them (Paleozoic weathered bedrock, Pleistocene littoral facies, Holocene colluvial, and anthropogenic filling) in the NSUS contributing to the SFUS. The NSUS groundwater discharge and recharge are, respectively, around 0.28 Mm3 year–1 and 0.31 Mm3 year–1, and the actual groundwater storage is around 0.47 Mm3. The groundwater renewability is high enough to guarantee a durable small exploitation for specific current and future urban water uses which can alleviate the pressure on the ARDGB.

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“…Br − is naturally present in various water sources at concentration ranging from few μg L −1 to mg L −1 , whereby higher Br − concentration (>50 mg L −1 ) can be found in seawater and groundwater (Alcalá, 2019, Kim et al, 2014, Magazinovic et al, 2004. Bromate (BrO3 − ) formation during the oxidative treatment of Br − containing water including ozonation and SO4 •− -AOP (Fig.…”

Section: Investigation Into Bromate Formationmentioning

confidence: 99%

Hybrid oxidation separation technology (HOST) for synergistic removal of recalcitrant pollutants in water

Lee¹

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Usefulness of the Cl/Br ratio to identify the effect of reverse osmosis treated waters on groundwater systems

Cited by 6 publications

References 59 publications

Hydrochemical Characterization of Groundwaters’ Fluid Flow through the Upper Mesozoic Carbonate Geothermal Reservoirs in the Geneva Basin: An Evolution more than 15,000 Years Long

Hydrochemical Characterization of Groundwaters’ Fluid Flow through the Upper Mesozoic Carbonate Geothermal Reservoirs in the Geneva Basin: An Evolution more than 15,000 Years Long

Combining of MASW and GPR Imaging and Hydrogeological Surveys for the Groundwater Resource Evaluation in a Coastal Urban Area in Southern Spain

Hybrid oxidation separation technology (HOST) for synergistic removal of recalcitrant pollutants in water

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