Physicochemical and geochemical characterization of geothermal waters sedimentation tendency at Sijarinska spa and Vranjska spa (Serbia)

Nebojsa Mitic,Stanisa Stojiljkovic,Bratislav Todorovic,Dragan Stojiljkovic,Suzana Cakic,Ljubisa Nikolic

doi:10.2298/hemind121002026m

Abstract

A comprehensive analysis of physicochemical parameters in geothermal waters from the sites in Sijarinska spa (drill hole B-4) and Vranjska spa (drill hole VG-2) in order to investigate their tendency to form deposits in the pipe installation is presented. Drill holes B-4/VG-2 posses utilization capacity of 30/27 L s-1 with water temperatures 75/90 oC. VG-2 water does not show any tendency to (or shows very small) sedimentation compared to the B4 water. The behaviour of the geothermal water from the B-4 hole was examined in real condition in Sijarinska spa, by letting it flow through the pipe installation. The results of geochemical analysis of water B-4 show that aragonite is the predominant mineral in the sediment (98 %) with lesser amount of calcite, vaterite and anhydrite.

Highlights

A comprehensive analysis of physicochemical parameters in geothermal waters from the sites in Sijarinska spa and Vranjska spa in order to investigate their tendency to form deposits in the pipe installation is presented
In this paper, the chemical composition and physicochemical characteristics of geothermal waters B-4 and VG-2 are investigated in order to determine their tendency towards formation of deposits in the pipe installation
Geochemical analysis revealed the concentration of major ions in the samples whose presence causes sedimentation and certain physicochemical properties

Summary

Introduction

A comprehensive analysis of physicochemical parameters in geothermal waters from the sites in Sijarinska spa (drill hole B-4) and Vranjska spa (drill hole VG-2) in order to investigate their tendency to form deposits in the pipe installation is presented. Both drill holes, B-4 and VG-2 possess utilization capacity of 30/27 L s–1 with water temperatures 75–90 °C. The object of this analysis is the sedimentation of waters from drill hole B-4 (Sijarinska spa, depth 1232 m) and drill hole VG-2 (Vranjska spa, depth 867 m) These locations are relatively close by, geographic characteristics and chemical composition of these waters are different and they have different physicochemical parameters [7,8,9,10,11]

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Results

Conclusion