Hydrogeochemical processes and contaminants enrichment with special emphasis on fluoride in groundwater of Birbhum district, West Bengal, India

Batabyal, Asit Kumar

doi:10.1007/s12665-017-6584-y

Cited by 21 publications

(5 citation statements)

References 36 publications

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“…Rapid precipitation of calcite maintained lower levels of Ca in the shallow aquifer groundwater and likely triggered repeated dissolution–precipitation cycles of fluorite and calcite. This mechanism could explain the significantly negative correlation (−0.758) between Ca and F in this study (Table S9), and is consistent with mechanisms previously suggested. ,,− Solubility plots under simulated average groundwater composition of the shallow aquifer also support simultaneous control of calcite and fluorite on dissolved F concentrations (Figure S7). A relatively alkaline pH, such as in the shallow aquifer, likely facilitated this process because calcite precipitation generates net protons (eq ).…”

Section: Resultssupporting

confidence: 90%

The Role of Manganese Carbonate Precipitation in Controlling Fluoride and Uranium Mobilization in Groundwater

Mohapatra

Sujathan

Ekamparam

et al. 2021

ACS Earth Space Chem.

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Groundwater contamination with fluoride (F) and uranium (U) has been reported in many parts of India. However, the sources and mobilization mechanisms of these contaminants remain poorly understood. The present study aimed to identify the processes governing the coexistence of elevated F and U in groundwater at a typical site in India’s middle Gangetic plain. Sustained groundwater sampling at 21 locations over two years indicated persistence of high F and U in a shallow aquifer (12 m depth), but absence of these pollutants in a deeper aquifer (30 m depth). For both the aquifers, Mn exhibited strong inverse correlations with F (−0.587; p < 0.01) and U (−0.581; p < 0.01). X-ray diffraction analysis of representative sediment cores indicated few differences in the mineralogy of the two aquifers, which consisted of fluorite (CaF2(s)) and calcite (CaCO3(s)), among others. Analysis of groundwater speciation and saturation state and sequential extraction on aquifer sediments suggested that elevated F in shallow groundwater occurred due to calcite precipitation-induced fluorite dissolution. The conditions in both the aquifers were oxidizing with respect to U, but reducing with respect to Mn. Elevated U was attributed to carbonate-promoted mobilization from iron–manganese (Mn) and residual sediment fractions. In the deeper groundwater, elevated Mn and lower pH levels persisted with conditions at saturation with respect to rhodochrosite (MnCO3(s)). Furthermore, medium (30 d) to long-term (300 d) batch experiments were performed to systematically evaluate the role of variable Mn on calcite precipitation under approximate in situ conditions. Precipitation of rhodochrosite outcompeted calcite precipitation and resulted in lower pH compared to pH of Mn-free systems, which (a) inhibited calcite precipitation and associated fluorite dissolution and (b) constrained pH and alkalinity in the deeper groundwater. These findings have implications for understanding F and U mobilization in comparable Mn-deficient sites and development of appropriate Mn-based amendments for in situ remediation.

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Section: Resultssupporting

confidence: 90%

The Role of Manganese Carbonate Precipitation in Controlling Fluoride and Uranium Mobilization in Groundwater

Mohapatra

Sujathan

Ekamparam

et al. 2021

ACS Earth Space Chem.

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“…Groundwater enriched with sodium lacks calcium and favors fluoride exudation from geological formations. Therefore, precipitation of CaCO 3 creates routes for the dissolution of CaF 2 , which has enhanced fluoride ions in groundwater [151]. For a long time, the mixture of granitic, NaF, and CaF 2 rocks impact fluoride in the groundwater [152].…”

Section: Groundwatermentioning

confidence: 99%

Bioaccumulation of Fluoride in Plants and Its Microbially Assisted Remediation: A Review of Biological Processes and Technological Performance

et al. 2021

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Fluoride is widely found in soil–water systems due to anthropogenic and geogenic activities that affect millions worldwide. Fluoride ingestion results in chronic and acute toxicity, including skeletal and dental fluorosis, neurological damage, and bone softening in humans. Therefore, this review paper summarizes biological processes for fluoride remediation, i.e., bioaccumulation in plants and microbially assisted systems. Bioremediation approaches for fluoride removal have recently gained prominence in removing fluoride ions. Plants are vulnerable to fluoride accumulation in soil, and their growth and development can be negatively affected, even with low fluoride content in the soil. The microbial bioremediation processes involve bioaccumulation, biotransformation, and biosorption. Bacterial, fungal, and algal biomass are ecologically efficient bioremediators. Most bioremediation techniques are laboratory-scale based on contaminated solutions; however, treatment of fluoride-contaminated wastewater at an industrial scale is yet to be investigated. Therefore, this review recommends the practical applicability and sustainability of microbial bioremediation of fluoride in different environments.

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“…Therefore, in-depth knowledge of the solute composition could assist in constraining the major chemical reactions contributing to groundwater mineralization (White et al 1963;Polzer and Hem 1965;Bricker et al 1968;Teddy 1971;Hem 1977;Freeze and Cherry 1979;Drever 1988;and Diop and Tijani 2014). According to Batabyal (2017), hydrogeochemical studies give a clear comprehension of the subsurface geologic environments and the processes involved in the chemical evolution of groundwater. These processes are largely controlled by the physical and chemical interactions between groundwater and the aquifer materials (Nyende et al 2014) resulting in its seasonal, temporal, and spatial variations in chemistry and consequently quality (Rajmohan and Elango 2004).…”

Section: Introductionmentioning

confidence: 99%

“…Different studies (Orajaka 1972;Offodile 1976; Egboka and Uma 1986; Uma et al 1990; Uma and Loehnert 1992; Loehnert and Uma 1992; Loehnert et al 1996;Tijani 1997;Tijani and Uma 1998;Tijani 2004; and Umar and Igwe 2019) have been carried out on the chemistry of groundwater resources within the Benue Trough using different geochemical approach (isotopes, chemical and geophysical data) to decipher its salinity origin. However, Batabyal (2017) recognized that human factors such as groundwater over-abstraction and excessive application of chemical fertilizers can result in some degree of groundwater salinization. Locally, in the study area, speci c information on the hydrogeochemical interaction of the groundwater and the aquifer materials is lacking or rather have been discussed "in-passing".…”

Section: Introductionmentioning

confidence: 99%

Influence of Hydrogeochemical Factors on the Natural Water Systems of Uburu-Okposi area, Lower Benue Trough, Southeastern Nigeria, using Geochemical and Multivariate Statistical Methods

Tijani

Owolabi

Obini

2022

Preprint

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The influence of hydrogeological processes on water systems of the Uburu-Okposi area, Lower Benue Trough was investigated to understand the interplay between aquifer materials and the water system resulting in its chemical composition modification. Forty (40) water samples (ground and surface sources) were randomly collected and analyzed for their physicochemical properties. Results from in-situ measured physicochemical parameters are pH: 5.29–8.98, EC: 206–6970 us/cm, and TDS: 112–4690 mg/l. Laboratory results shows Na+ as the dominant cation (4.4–4900 mg/l) with Cl− as the dominant anion (14.4–6300 mg/l). The values were indicative of salinization. Factors influencing water chemistry were determined using Saturation Index (SI), Ionic Ratio, and Bivariate plots. 65% of samples had positive Chloro Alkali Index (CAI) ratio suggesting direct base-exchange reaction as a dominant factor governing water chemistry. CAI 1 & 2 large absolute values show cation exchange as a principal influence on groundwater chemistry. Estimated SI showed Dolomite, Calcite, Aragonite, and Magnesite were supersaturated therefore, they influenced water chemistry. Bivariate plots identified Ion Exchange (carbonate and silicate weathering) as another principal influence on water chemistry. Gibbs plot showed 92.5% samples plotted in the rock–water interaction field with 7.5% plotting within the evaporation-precipitation field. Principal Component Analyses (PCA) extracted six components factors, the first three factors accounted for above 50% of the total variation collectively responsible for the hydrochemical processes in the area via water-rock interactions, carbonate dissolution, and ion exchanges. Conclusively, geogenic factors are the major influence on water chemistry in the study area.

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Hydrogeochemical processes and contaminants enrichment with special emphasis on fluoride in groundwater of Birbhum district, West Bengal, India

Cited by 21 publications

References 36 publications

The Role of Manganese Carbonate Precipitation in Controlling Fluoride and Uranium Mobilization in Groundwater

The Role of Manganese Carbonate Precipitation in Controlling Fluoride and Uranium Mobilization in Groundwater

Bioaccumulation of Fluoride in Plants and Its Microbially Assisted Remediation: A Review of Biological Processes and Technological Performance

Influence of Hydrogeochemical Factors on the Natural Water Systems of Uburu-Okposi area, Lower Benue Trough, Southeastern Nigeria, using Geochemical and Multivariate Statistical Methods

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