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Adsorption rate of Phosphate Corrosion Inhibitor in Carbon Steel pipe  

Woo, Dalsik (Department of Water Environment Research, Korea Interfacial Science and Engineering Institute)
Hwang, Byunggi (Division of Civil & Environmental Engineering, Sangmyung University)
Publication Information
Journal of Environmental Impact Assessment / v.14, no.1, 2005 , pp. 17-24 More about this Journal
Abstract
This study was performed to evaluate the adsorption rate of phosphate corrosion inhibitor and reaction rate constant in drinking water distribution systems. The optimum concentration of corrosion inhibitor would vary depending on the quality of water, pipe materials, and condition of metal surfaces. The current adsorption study indicated that the residual phosphate concentration of the corrosion inhibitor decreased with the time as it adsorbed on the surface of pipe material. As time went by, the residual phosphate concentration became constant. It means that the formation of the corrosion protection film on metal surfaces is completed.
Keywords
Phosphate corrosion inhibitor; Drinking water distribution system; Adsorption rate;
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