engleski

The characterization of groundwaters from Brčko Distrikt according to the chemical coefficients

Groundwater is the main source used for drinking, irrigation and industrial purposes, and the evaluation of the groundwater quality is a relevant part of its safe usage. This work was focused on the characterization of groundwaters from Brčko Distrikt according to the chemical content and coefficients, which represent the ratios between water ingredients. The analysis of these compounds in 61 groundwater sources was conducted between 2004- 2008, while the total hardness (Ca+Mg), Ca/Mgeq ratio, SO42-/Cl-eq ratio, corrosion coefficient (K1) and sodium absorption ratio (SAR) were calculated. It was observed that the total hardness in the analyzed samples, expressed as mg/L CaCO3, ranged from 67.88 to 378.58 (mean value: 182.09 ; median: 159.74), while the SO42-/Cl-eq ratio was 0.14-5.98 (mean value: 1.50 ; median: 1.29). Furthermore, SAR varied in the investigated waters from 0.16 to 11.77, K1 was lower than 0.2 and analyzed samples did not significantly mineralize (<500 mg/L minerals). According to the results of this study, the groundwaters of Brčko Distrikt could be classified as moderately hard water, calcium bicarbonate and chloride type, and non- corrosive. According to SAR 68.85% of all studied groundwaters belong to the class 0 and the class I (SAR <6), which makes this water source suitable for irrigation.

chemical coefficients ; groundwater

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