Assessment of Groundwater Quality in a Structurally Deformed Granitic Terrain in Hyderabad, India

Abstract

Geochemical study of groundwater from a structurally deformed granitic terrain near Hyderabad (India) was carried out to understand and evaluate the hydrogeochemical processes and quality of groundwater. Several trace elements (Fe, Mn, Be, Al, V, Cr, Co, Ni, Cu, Zn, As, Sr, Mo, Cd, Sb, Ba, Pb, U) along with major ions and minor elements were precisely estimated in shallow and drilled wells to know the suitability of water for drinking and irrigation purposes. Analytical data shows that pH and major ion chemistry in dug wells and bore wells do not vary significantly, while some trace elements (Fe, Mn, Al, Be, Co, Pb, U and Zn) vary in dug wells and bore wells, which can be attributed to differential mineral weathering and dissolution/precipitation reactions along fractures/joints. Although the water is not potable, it was found to be suitable for irrigation with little danger in the development of harmful level of exchangeable sodium. It is inferred that the chemical composition of the groundwater in this region is likely to have its origin from silicate weathering reactions and dissolution/precipitation processes supported by rainfall and groundwater flow.

Chromium Speciation Using Flow-injection Preconcentration on Xylenol Orange Functionalized Amberlite XAD-16 and Determination in Industrial Water Samples by Flame Atomic Absorption Spectrometry

“…While Cr(III) is considered to be an essential micronutrient for humans, exposure to Cr(VI) compounds can cause damage to skin, respiratory tract and kidneys, and also increases risk of lung cancer. 5 Spectro-analytical methods such as FAAS, 6 ET-AAS, 7 ICP-OES 8 and ICP-MS 9 can detect the total chromium in water samples. However, these singular detection techniques suffer from low sensitivity and precision due to interferences in the sample matrix.…”

Influence of geochemical processes on hydrochemistry and irrigation suitability of groundwater in part of semi-arid Deccan Plateau, India

“…This has led to over-exploitation of groundwater from deep bore-wells (Chandra et al 2012). Studies on groundwater quality for domestic and irrigation purposes in this region (Pophare and Dewalkar 2007;Satyanarayanan et al 2007) and in similar kind of geological formations around the world (Belkhiri et al 2010;Aghazadeh and Mogaddam 2011) indicated the influence of geochemical processes on ionic composition of groundwater.…”

Hydrochemical characterization of groundwater in wadi Sayyah, Western Saudi Arabia

“…The classification of groundwater for irrigation purposes according to RSC values indicates that all the groundwater samples are \1.25 and hence it is a good category (Table 6). Negative RSC indicates that sodium buildup is unlikely since sufficient calcium and magnesium are in excess of what can be precipitated as carbonates (Manavalan et al 2007) Permeability index (PI) The permeability index is another parameter which is used to determine the suitability of groundwater for irrigation. This index is proposed by Doneen (1964) to assess probable influence of water quality on physical properties of soils using the following equation.…”