Microelectrodes for Analysis of Chemistry at the Wall of Drinking Water Pipes
Abstract:In this study, microelectrodes were utilized in order to measure levels of DO (dissolved oxygen) and pH as a function of time at a fixed distance (50um) from the pipe wall of new copper drinking water pipes and as a function of distance from the wall of an excavated and conditioned section of 4″ diameter cast iron pipe. Such data can be used to better model drinking water systems, to better understand and reduce red water formation, and to provide additional insight into corrosion as it relates to many scientific and industrial applications. Characterizing microenvironments at or near the solid-liquid interface within drinking water pipes is an integral part of understanding the complete oxidation reaction taking place between water and a reactive metal surface. Chemical profiles of this region can be used to more accurately model water distribution networks, allowing prediction of bulk water properties, which can then be used to determine the best means of reducing corrosion.
Document Type: Research Article
Publication date: 2001-01-01
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