Abstract
The aim of the study was assessment of groundwater stabilization. Corrosive water effects on metals include complex electrochemical and biochemical processes. None of the water components remain indifferent to the metal and can accelerate or delay its corrosion. On the basis of the conducted tests of water samples, the aggressiveness and corrosivity indicators were calculated. Conducted research included analyses of raw and treated water. Raw water was taken as groundwater. Then it was treated in individual and complex processes such as aeration, filtration and ion exchange. Water aggressiveness and corrosion level were introduced by the Langelier Saturation Index (LSI), the Ryznar Stability Index (RI), the Larsoni–Skold Index (LI) and the Singley Index (SI). Obtained results proved that used water treatment processes must be improved through additional aeration and filtration with a dolomite bed. A simple system typical for industrial water is not enough to reach stable water because of remaining aggressiveness and corrosion.
Highlights
Water used for domestic and industrial purposes should not have aggressive and corrosive characteristics [1]
Laboratory and technical experiments on the reduction of water aggressiveness and corrosion were conducted for treated groundwater from the chosen industrial plant
This property ranged from primary aeration to the last process in the plant– ion exchange
Summary
Water used for domestic and industrial purposes should not have aggressive and corrosive characteristics [1]. Corrosive and aggressive features of water can be determined by direct methods, including evaluation of effects of corrosive exposure to different materials. The other means of determination are indirect methods. Such ways involve the measurement of selected physico–chemical parameters of the water and the interpretation of resulting data by corrosivity and aggressiveness indicators, which allow determination of the water’s tendency to corrosively impact materials. Corrosivity indicators found in the literature can be divided into two groups [5]. The first group of indicators used to assess water corrosiveness includes the Langelier Saturation Index (LSI) and the Ryznar Stability Index (RI). The second group is based on the Larson–Skold index (LI) and Singley index (SI) [5,6]
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