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  • The impact of stagnant water on the corrosion processes in pipeline = Vpliv zastajajočih voda v cevovodih na korozijske procese
    Suban, Marjan ; Cvelbar, Robert ; Bundara, Borut
    The occurrence of stagnant water is often the result of incomplete or improper hydrotesting procedure of pipelines (e.g. water installation in buildings) or improper design and construction of a ... pipeline that results in the blind ends. Phenomenon of stagnant water can also be observed in sprinkler fire protection systems. Potable water, which is not additionaly chemically treated, is commonly used for execution of the hydrotest or as a medium in fire protection systems. Water therefore contains bacteria that cause microbiological influenced corrosion. This relatively unusual form of corrosion results from interactions of bacteria with various metals and their alloys and can be manifested in corrosion rate that is up to 100-times higher than conventional types of corrosion. The article described in detail causes for the formation and progress of microbiologicaly influenced corrosion and its consequences in the case of galvanized water pipes. Some recommendations for reduction of risk concerning the microbiologicaly influenced corrosion in water pipes are stated in the conclusion.
    Type of material - conference contribution
    Publish date - 2009
    Language - english, slovenian
    COBISS.SI-ID - 789162