Modeling Issues of Copper Solubility in Drinking Water

by Michael R. Schock, USEPA, Cincinnati, United States,
Darren A. Lytle, USEPA, Cincinnati, United States,
Jonathan A. Clement, USEPA, Cincinnati, United States,

Document Type: Proceeding Paper

Part of: Critical Issues in Water and Wastewater Treatment


The paper discusses the application of a model to the solubility of copper in drinking water. This paper is the result of numerous forms of pitting corrosion and pipe failures. Monitoring of cuprosolvency has forced many utilities to undertake corrosion control studies and treatment rather than the replacement of pipes perforated by pitting. The development of this model is constrained by several areas of uncertainty like the nature of field data, the selection of appropriate aqueous and solid species for drinking water systems, the uncertainties in selection of the most accurate equilibrium constant data, the role of metastable phases in cuprosolvency control, temperature effect and the residual oxidants in the plumbing systems.

Subject Headings: Copper (chemical) | Solubility | Hydrologic models | Drinking water | Water pollution | Water treatment | Water quality | Model accuracy

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