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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. [Projekat Ministarstva nauke   Republike Srbije, br. TR 33034

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