Vorkommen von Vanadium im Grundwasser der Vulkaneifel

Härter, Linda M.; Kersten, Michael; Riße, Andreas; Poppe, Rudolf; Wieber, Georg

doi:10.1007/s00767-020-00447-x

Cited by 7 publications

(2 citation statements)

References 13 publications

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“…Samples of the volcanic rocks were analyzed, confirming elevated vanadium levels, and indicating the phosphate mineral fluoro‐apatite as a geogenic source of vanadium. This finding explains the higher molar levels of phosphate (compared with the pentavalent vanadium) in the groundwaters (Härter et al, 2020).…”

Section: Introductionmentioning

confidence: 86%

Vanadium removal from drinking water by fixed‐bed adsorption on granular ferric hydroxide

Bahr¹,

Jekel

Amy

2022

AWWA Water Science

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The metal vanadium (V), often present as pentavalent oxyanion vanadate, can be present in groundwaters worldwide due to natural origin. While there are presently no US drinking water standards for vanadium, the German Environmental Protection Agency has defined a guidance value of 4 μg/L in drinking water. Impacted water suppliers need an effective and selective treatment process for meeting this value. In 2020, an extended efficiency test (EET) was completed successfully at a water works in Daun, Germany using GEH®, Granular Ferric Hydroxide, an adsorbent that has been in use for over 20 years in several thousand treatment plants worldwide, primarily for removal of arsenic present as arsenate, with chemical similarities to vanadate. An EET, performed in a treatment plant with a flow of 34 m3/h over 13 months, demonstrated reliable removal of vanadium, present at 28 μg/L, down to the limit of quantification (2 μg/L). Thus, for water supplies with vanadium occurrence and a similar water quality, GEH® may provide an effective treatment option.

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Section: Introductionmentioning

confidence: 86%

Vanadium removal from drinking water by fixed‐bed adsorption on granular ferric hydroxide

Bahr¹,

Jekel

Amy

2022

AWWA Water Science

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“…In several of these regions, there is concern about the importance of groundwater vanadium for human health, including Italy (Arena et al., 2015 ), Germany (Härter et al., 2020 ), and the Canary Islands (Luengo‐Oroz et al., 2014 ).…”

Section: Groundwater In Volcanic Rocksmentioning

confidence: 99%

Vanadium for Green Energy: Increasing Demand but With Health Implications in Volcanic Terrains

Parnell

2022

GeoHealth

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The transition to a clean energy future may require a very substantial increase in resources of vanadium. This trend brings into focus the potential health issues related to vanadium in the environment. Most vanadium enters the Earth's crust through volcanic rocks; hence, vanadium levels in groundwaters in volcanic aquifers are higher than in other aquifers and can exceed local guidance limits. The biggest accumulation of volcanogenic sediment on the planet is downwind of the Andes and makes up much of Argentina. Consequently, groundwaters in Argentina have the highest vanadium contents and constitute a global vanadium anomaly. The high vanadium contents have given rise to health concerns. Vanadium could be extracted during remediation of domestic and other groundwater, and although the resultant resource is limited, it would be gained using low‐energy technology.

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Fluid–Rock Interactions in Geothermal Reservoirs, Germany: Thermal Autoclave Experiments Using Sandstones and Natural Hydrothermal Brines

et al. 2022

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As renewable energy, geothermal can contribute substantially to the energy transition. To generate electricity or to harvest heat, high-saline fluids are tapped by wells of a few kilometres and extracted from hydrothermal reservoirs. After the heat exchanger units have been passed by, these fluids are reinjected into the reservoir. Due to the pressure and temperature differences between the subsurface and the surface, as well as the cooling of the fluids in the power plant, unwanted chemical reactions can occur within the reservoir, in the borehole, and within the power plant itself. This can reduce the permeability of the reservoir as well as the output of the geothermal power plant. This study aims to simulate real subsurface reactions using batch and leaching experiments with sandstone or sandstone powder as solid phase, and deionised water or natural brine as liquid phase. It is demonstrated that fluid composition changes after only a few days. In particular, calcite, aragonite, clay minerals, and zinc phases precipitate from the natural brine. In contrast, in particular minerals containing potassium, arsenic, barium, and silica are dissolved. Due to the experimental set-up, these mineral reactions mainly took place on the surface of the samples, which is why no substantial changes in petrophysical properties could be observed. However, it is assumed that the observed reactions on the reservoir scale have a relevant influence on parameters such as permeability.

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Vorkommen von Vanadium im Grundwasser der Vulkaneifel

Cited by 7 publications

References 13 publications

Vanadium removal from drinking water by fixed‐bed adsorption on granular ferric hydroxide

Vanadium removal from drinking water by fixed‐bed adsorption on granular ferric hydroxide

Vanadium for Green Energy: Increasing Demand but With Health Implications in Volcanic Terrains

Fluid–Rock Interactions in Geothermal Reservoirs, Germany: Thermal Autoclave Experiments Using Sandstones and Natural Hydrothermal Brines

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