Hydrogeochemical modelling to understand the surface water–groundwater interaction around a proposed uranium mining site

Manoj, S.; Thirumurugan, M.; Elango, L.

doi:10.1007/s12040-019-1078-9

Cited by 13 publications

(6 citation statements)

References 31 publications

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“…Their study recommended an integrated approach in using water balancing, salinity, and stable isotopic composition to identify possible seasonal groundwater input to a billabong near a uranium mine in Australia based on multiple sampling campaigns to capture seasonal variations. Similar temporal changes of SW-GW interactions were identified by integrating groundwater level fluctuations, geological data, and uranium speciation and saturation indices in water at a uranium mine in India by Manoj et al (2019). Distinguishing endmembers at mine sites where water is reused or recycled can be difficult using only primary EWTs.…”

Section: Identifying Water Sources (Endmembers) and Mixingmentioning

confidence: 69%

Selecting Environmental Water Tracers to Understand Groundwater around Mines: Opportunities and Limitations

et al. 2022

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Underground mining operations have the potential to alter groundwater systems and facilitate hydraulic connections between surface water and groundwater. The nature and degree of these interactions need to be evaluated to identify mining risks to surrounding water resources and to predict potential operational effects and environmental impacts, such as hydraulic stress on local surface waters. Environmental water tracers (EWTs) are commonly used to study such interactions in mine water and hydrogeological studies. However, the opportunities presented by EWTs could be more widely utilised to benefit the mining industry and the environment. Some of the challenges faced include the lack of practical frameworks, the need for more examples of EWTs applications in mining, and the possibility of complex interpretation of tracer results. This paper reviews previous studies that have applied EWTs in groundwater systems within or near mine sites, mostly from Australia, China, and India. The EWTs used in these studies include water quality parameters, major ions, stable isotopes, radioisotopes, and dissolved gases. The opportunities of applying multiple EWTs to identify water sources, mixing, and determine recharge rates and groundwater residence times are discussed. Limitations of different EWTs in terms of their capabilities, reliability, cost of analysis, effort, and processing times are reviewed. Steps for selecting suitable EWTs for specific mine hydrogeology assessments should be commensurate with the risks. Finally, this paper provides an overview of suitable EWTs that will be a useful contribution to appropriate water resource management decisions around mines.

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Section: Identifying Water Sources (Endmembers) and Mixingmentioning

confidence: 69%

Selecting Environmental Water Tracers to Understand Groundwater around Mines: Opportunities and Limitations

et al. 2022

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“…Hydrogeochemical simulation is an important method to analyze various geochemical interactions in the water-rock interaction system on the basis of equilibrium thermodynamics and chemical kinetics [40,41]. To further analyze the evolution law of groundwater in the study area, two representative groundwater runoff paths were selected, and PHREEQC software (USGS, Virginia State, USA) was used to perform a reverse hydrogeochemical simulation to quantitatively explain the changes of groundwater chemical composition and the main water-rock interactions.…”

Section: Hydrogeochemical Modelingmentioning

confidence: 99%

Characteristics and Controlling Factors of Groundwater Hydrochemistry in Dongzhi Tableland Area of the Loess Plateau of Eastern Gansu—A Case Study of Ning County Area, North China

Zhang

Han

Wang

et al. 2022

Water

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Groundwater plays an irreplaceable role in all aspects of the Loess Plateau. In this study, the loess phreatic water (LPW) and bedrock phreatic water (BPW) in the Ning County area (NCA) were sampled and analyzed, and the characteristics and controlling factors of groundwater were determined by using statistical analysis, hydrochemical methods, and hydrogeochemical simulation. The results indicated that the groundwater in the NCA was alkaline as a whole, and the average pH values of LPW and BPW were 8.1 and 7.8, respectively. The mean values of TDS concentrations of LPW and BPW were 314.9 mg/L and 675.3 mg/L, and the mean values of TH contents were 194.6 mg/L and 286.6 mg/L, respectively, which were mainly divided into hard fresh water. The Piper diagram illustrated that the hydrochemical type of groundwater in the NCA was mainly the HCO3·Ca type. The main recharge source of groundwater was atmospheric precipitation, and it was affected by evaporation to a certain extent. The linear relationships of δ18O and δ2H of LPW and BPW were δ2H = 6.998δ18O − 3.802 (R2 = 0.98) and δ2H = 6.283δ18O − 10.536 (R2 = 0.96), respectively. Hydrochemical analysis indicated that the groundwater in the NCA was mainly controlled by rock weathering and cation exchange. BPW was affected by the dissolution of gypsum. The possible mineral phases were identified on the basis of the main soluble minerals in the aquifer, and hydrogeochemical reverse simulations were performed. The dissolution of calcite, illite, and hornblende, and the precipitation of dolomite, plagioclase, and microcline occurred on both the LPW and BPW pathways.

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“…To further illustrate the effects of rock weathering (silicate weathering, carbonate, and Evaporite dissolution), Na-normalized Ca 2+ versus Mg 2+ is presented in Figure 5a and Na-normalized Ca 2+ versus HCO3 − is presented in Figure 5b. It is determined that the high values of the Ca 2+ /Mg 2+ ratio indicate the domain of the bicarbonate dissolution [36], while low values of this ratio mean the dissolution of silicates [37,38]. Through the To further illustrate the effects of rock weathering (silicate weathering, carbonate, and Evaporite dissolution), Na-normalized Ca 2+ versus Mg 2+ is presented in Figure 5a and Na-normalized Ca 2+ versus HCO 3 − is presented in Figure 5b.…”

Section: Processes Controlling River Solutementioning

confidence: 99%

“…It is determined that the high values of the Ca 2+ /Mg 2+ ratio indicate the domain of the bicarbonate dissolution [36], while low values of this ratio mean the dissolution of silicates [37,38]. Through the It is determined that the high values of the Ca 2+ /Mg 2+ ratio indicate the domain of the bicarbonate dissolution [36], while low values of this ratio mean the dissolution of silicates [37,38]. Through the use of bivariate diagrams of Figure 5, samples of river water (Bian and Tuo) are concentrated and mainly affected by silicate weathering; there is a partial influence of evaporate dissolution.…”

Section: Processes Controlling River Solutementioning

confidence: 99%

Hydrochemical Characteristics and Water Quality Evaluation of Rivers in Different Regions of Cities: A Case Study of Suzhou City in Northern Anhui Province, China

Jiang

Gui²,

et al. 2020

Water

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To study the disparity of river hydrochemical characteristics and water quality in different regions of the city, this paper took the Tuo River in the center of Suzhou, Northern Anhui, China and the Bian River on the edge of the urban area as the research objects, used Piper trigram, Gibbs diagram, and hydrogen and oxygen isotope content characteristics to analyze the geochemical characteristics of surface water in the study area, and then the improved fuzzy comprehensive evaluation method was used to evaluate the water quality. The results showed that the hydrochemical types of the two rivers were SO4-Cl-Na type, and the contents of Na+, K+, SO42−, Cl−, Ca2+, total phosphorus (TP) in the Bian River at the edge of the city were much higher than those in the Tuo River at the center of the city (ANOVA, p < 0.001). Gibbs diagram showed that the ion composition of the two rivers was mainly affected by rock weathering. The results of correlation analysis and water quality evaluation showed that Bian River was greatly affected by agricultural non-point source pollution, and its water quality was poor, class IV and class V water account for 95%, while, for Tuo River, due to the strong artificial protection, class II and class III accounted for 40.74% and 59.26%, respectively, and the overall water quality was better than that of Bian River. The evaluation results of irrigation water quality showed that the samples from Tuo River were high in salt and low in alkali, which could be used for irrigation when the soil leaching conditions were good, while Bian River water samples were high in salt and medium in alkali, which was suitable for irrigation of plants with strong salt tolerance.

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Hydrogeochemical modelling to understand the surface water–groundwater interaction around a proposed uranium mining site

Cited by 13 publications

References 31 publications

Selecting Environmental Water Tracers to Understand Groundwater around Mines: Opportunities and Limitations

Selecting Environmental Water Tracers to Understand Groundwater around Mines: Opportunities and Limitations

Characteristics and Controlling Factors of Groundwater Hydrochemistry in Dongzhi Tableland Area of the Loess Plateau of Eastern Gansu—A Case Study of Ning County Area, North China

Hydrochemical Characteristics and Water Quality Evaluation of Rivers in Different Regions of Cities: A Case Study of Suzhou City in Northern Anhui Province, China

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