Abstract
The main of this research was to recognize the efficiency of geothermal water deironing processes. To this, studies on a laboratory scale were conducted. In the paper the modeling of geothermal water deironing processes using new tool basis on triangulation has been used. Carrying out the analysis of potential possibilities of using geothermal water and taking economic aspects of water deironing processes into account, the authors of this article conducted research into the geothermal water deironing processes by adjusting existing knowledge on the removal of iron from cold groundwater. The conducted research confirmed the possibility of adjusting such processes to the treatment of geothermal water, but their effectiveness differs depending on the temperature and salinity of water, but this relation is not linear. The analyzes indicated that the best deironing effect was obtained for water whose salinity does not exceed 10 g/L and the temperature 30C.
Highlights
Natural hot waters have been used since earliest time, and warm springs occur in many region of the world
Iron present in the water at concentrations exceeding the level of 0.2mg/l, the following problems can occur: iron precipitates give water a reddish color when exposed to air; deposition of iron precipitates in the distribution system can reduce the effective pipe diameter and eventually clog the pipe; aesthetic value of the equipment used in balneology and recreation lower because of the reddish residue [2,3,4,5,6,7,8,9,10,11]
Iron removal by aeration and separation is a common method for removal of iron as from groundwater going into the public water supply system as well from geothermal water using for balneology [7,8,9,10,11]
Summary
Natural hot waters have been used since earliest time, and warm springs occur in many region of the world. Iron removal by aeration and separation is a common method for removal of iron as from groundwater going into the public water supply system as well from geothermal water using for balneology [7,8,9,10,11]. Alternative processes, such as ion-exchange, oxidation with oxidizing agents including chlorine and potassium permanganate, filtering with activated carbon and other filtering materials, supercritical fluid extraction, bioremediation and treatment with limestone, have been proposed in order to facilitate the operation and allow the removal of high amounts of iron [7, 9]
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