Geochemical evolution of groundwater in the Western Delta region of River Godavari, Andhra Pradesh, India

Rao, P. Venkateswara; Rao, S. Appa; Rao, N. Subba

doi:10.1007/s13201-015-0294-y

Cited by 24 publications

(4 citation statements)

References 23 publications

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“…This also demonstrates that Ca 2+ in the water is not only produced by the weathering of dolomite but also exists from other sources The main sources of sodium ions in groundwater are divided into three types: seawater intrusion, alternating cation adsorption, and albite weathering. The study area is an inland city, far from the sea, and therefore, Na + is not related to seawater intrusion in this case; Na + is mainly due to the alternating adsorption of cations and the dissolution of albite into groundwater [22].…”

Section: Groundwater Environment Analysis Ion Originmentioning

confidence: 99%

Hydrochemical Evolution of Groundwater in Dehui, China

Wei

Liang

Liu

et al. 2020

Water

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Although Dehui City has excellent agricultural conditions, long-term large-scale over-cultivation and human activities in recent years have caused significant changes in the local groundwater chemical characteristics. This study analyzes the causes, evolution, and prediction of groundwater chemistry via multi-disciplinary theoretical cross-cutting methods, such as groundwater ion composition-ratio analysis and groundwater influencing factor analysis, and artificial neural networks. The lithological characteristics of the groundwater aquifer were combined with ion composition-ratio mapping to explore the cause of groundwater chemistry composition in the study area. Piper three-line diagrams and Gibbs diagrams were used to analyze the evolution characteristics and influencing factors of groundwater chemistry in the study area. Based on these data, time series predictions were made for hydrochemical data. The results demonstrate that the chemical origins of groundwater in the study area are mainly background stratum and cation exchange, influenced by human activities. The main factors of groundwater chemical characteristics have changed from rock weathering to evaporation/precipitation in the past two decades. The hydrochemical characteristics changed from secondary alkalinity to secondary salinity. The predicted data from long short-term memory neural networks indicated that groundwater would continue salinization without the changes in the conditions, leading to land degradation in the study area.

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Section: Groundwater Environment Analysis Ion Originmentioning

confidence: 99%

Hydrochemical Evolution of Groundwater in Dehui, China

Wei

Liang

Liu

et al. 2020

Water

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“…This relationship indicates a common origin which is halite (NaCl). This type of minerals accumulates by evaporation and is present in groundwater by dissolution [NAGESWARA et al 2015].…”

Section: Evolution Of Water Correlationmentioning

confidence: 99%

Hydrochemical assessment and groundwater pollution parameters in arid zone: Case of the Turonian aquifer in Béchar region, southwestern Algeria

Mokeddem

Belhachemi

Merzougui

et al. 2018

Journal of Water and Land Development

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Groundwater samples from Turonian aquifer of Béchar region were evaluated as drinking and irrigation water sources. physicochemical parameters including pH, EC, TH, Na+, Ca2+, Mg2+, Cl−, SO42– and NO3− were determined for 16 water sampling points. These characterizations show that the groundwater is fresh to brackish, slightly alkaline and the major ions are Na+, Ca2+, Mg2+, Cl− and SO42–. According to WHO standards, 50% of the analysed water are suitable as a drinking source while the other samples are not in compliance with drinking water standards. This non-compliance is basically due to the high concentrations of Na+, Cl−, and SO42– requesting further treatment to reach the stringent standards. According to the results of nitrate concentrations, anthropogenic source seems to influence the groundwater quality. The present study shows that Béchar groundwater may represent an important drinking and irrigation water source. However, a specific management strategy should be adapted in order to avoid the contamination by anthropogenic sources.

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“…It supports residential water, irrigation, and industrial operations, providing food security, economic growth, and public health [2]. However, natural and anthropogenic processes are progressively threatening this essential resource [3]. Groundwater contamination from geological formations, agricultural operations, poor wastewater disposal, and industrial activity degrades water quality and poses health concerns to communities [4].…”

Section: Introductionmentioning

confidence: 99%

Interplay of Natural and Anthropogenic Inputs on the Groundwater Contamination of Beenaganj-Chachura Block

Murthy,

Ahirwar,

Samaiya

2024

Preprint

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The present research work investigates the impact of natural and anthropogenic inputs on the chemistry and quality of the groundwater in the Beenaganj-Chachura block of Madhya Pradesh, India. A total of 50 groundwater samples were examined for Nitrates, Fluoride, chlorides, TDS, Calcium, Magnesium, pH, total hardness and conductivity and their impact on Entropy Weighted Water Quality Index (EWQI) and Pollution Index of Groundwater (PIG) was investigated via the Response Surface Methodology (RSM) using the Central Composite Design (CCD). According to analytical findings, Calcium (Ca), Magnesium (Mg), Chloride ions (Cl−), Sulphate ions (SO42−), and Nitrate ions (NO3−) exceed the Desired Limit (DL) and permitted limit (PL) set by the Bureau of Indian Standards (BIS) and the World Health Organization (WHO). According to PIG findings, 76%, 16%, and 8% of groundwater samples, respectively, fell into the insignificant, low, and moderate pollution categories. The regression coefficients of the quadratic RSM models for the experimental data provided excellent results. Thus, RSM provides an excellent means to obtain the optimized values of input parameters to minimize the PIG values.

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Geochemical evolution of groundwater in the Western Delta region of River Godavari, Andhra Pradesh, India

Cited by 24 publications

References 23 publications

Hydrochemical Evolution of Groundwater in Dehui, China

Hydrochemical Evolution of Groundwater in Dehui, China

Hydrochemical assessment and groundwater pollution parameters in arid zone: Case of the Turonian aquifer in Béchar region, southwestern Algeria

Interplay of Natural and Anthropogenic Inputs on the Groundwater Contamination of Beenaganj-Chachura Block

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