Abstract
This paper presents an analysis of natural mineral waters recognized by EU member states (on the basis of being announced in the Official Journal of the European Union) and originating in Polish territory. For each of these waters, calculations were made in relation to the Langelier saturation index, Ryznar stability index, and indices S1 (effect of chloride and sulfate ions on iron and steel), S2 (effect of nitrate ions on zinc), and S3 (effect of bicarbonate/sulfate ratio on copper). The impact of mineral waters on copper, hot-dip galvanized iron, stainless steel, acid-resistant steel, cast iron, low-alloy steel, and nonalloy steel was assessed on the basis of the indices calculated. The analysis allowed determination of the possibility of these measures being used in assessing the performance of mineral water installations.
Highlights
Mineral waters, like tap water, are transported to places of collection or use via water pipes.they demand more from the installation materials used, given the need for the latter to be resistant to aggressive impacts that lead to corrosion
They demand more from the installation materials used, given the need for the latter to be resistant to aggressive impacts that lead to corrosion
More and more mineral water bottling plants are being built and more and more spas being established where sources of highly mineralized waters are located, there remains a lack of awareness about the need for mineral waters to be treated differently from tap water when it comes to the installation materials used
Summary
Like tap water, are transported to places of collection or use via water pipes They demand more from the installation materials used, given the need for the latter to be resistant to aggressive impacts that lead to corrosion. This in turn is reflected by the presence in mineral waters of a higher content of aggressive ions, such as bicarbonate, sulfate, and chloride, as well as free carbon dioxide. Under such conditions, there is a high probability that metal will start to corrode, thereby causing a deterioration in the quality of the water flowing through it. To help designers choose the right installation for a given mineral water, many indices have been developed to help determine, to a greater or lesser extent, water’s corrosive properties and its impact on individual metallic installation materials [4,5,6]
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