Influence of HPO42-, H4SiO4, Ca2+, Mg2+ on Fe floc growth and As(III) removal in aerated, natural groundwater

Ridder, D.J. de; Wetering, S. van de; Dijk, Tim van; Halem, D. van

doi:10.1016/j.jwpe.2018.07.004

Cited by 12 publications

(1 citation statement)

References 24 publications

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“…It can be hypothesized that the high Mg 2+ /Ca 2+ ratio of the FVA, FVF, and C water samples may be due to the lithological nature of the Fiume Veneto area. Furthermore, regarding both the intermediate and the deep aquifer water samples (FVA), the Mg 2+ /Ca 2+ ratio tends to increase with depth, from intermediate aquifer waters (at about 30–80 m, FVAs) to deep aquifer waters (at about 180 m, FVAd), probably due to a decrease in Ca 2+ concentrations with increasing depth probably due to differences in the chemistry of sediments (de Ridder et al, 2018 ). This can be explained by the lower availability of CO 2 at depth as well as from ionic exchanges between the Ca 2+ and Na + and K + (Cucchi et al, 2008 ; Zini et al, 2009 ).…”

Section: Resultsmentioning

confidence: 99%

Geochemical and isotopic tracers to define the aquifer’s vulnerability: the case study of the alluvial multi-aquifer system of the Friulian plain

Renzo

Rizzo

Telloli

et al. 2023

Environ Monit Assess

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The Friuli-Venezia Giulia Region (north of Italy) is characterized by the presence of high-quality freshwater resources which benefit local citizens, animals, environmental habitats, and also agriculture and production activities. Waters from wells, canal, and wastewater selected in the Fiume Veneto area, through a detailed lithological modeling, were sampled and analyzed to characterize them from a geochemical point of view. The chemical and isotopic characterization made it possible to establish provenance, and the average age of water used, making available the estimation of the relationships between recharge capacity and water use in the Fiume Vento area. The focus of this study is to define the average age of the resources based on the time required for the recharge contributions to compensate the losses induced by exploitation. The results made it possible to support the plans for a water balance using the provenance and average age of water sources for the protection of water reserves formed by the multi-aquifer system of the high and medium Friuli plain. The methodology applied has followed the legislation of the water directive considering the overexploitation due to unauthorized withdrawals of the sampling area.

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Section: Resultsmentioning

confidence: 99%