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AWWA WQTC69287
- Comparison between Synthesized Lead Particles and Lead Solids Formed on Surfaces in Real Drinking Water Distribution Systems
- Conference Proceeding by American Water Works Association, 11/01/2008
- Publisher: AWWA
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The objective of this work was to compare the properties of lead solids formed duringbench-scale precipitation experiments to solids found on lead pipe removed from realdrinking water distribution systems and metal coupons used in pilot scale corrosiontesting. Specifically, solids and surface analysis approaches, including XRD, SEM,TEM, and EDS were used to compare the properties of lead solids and corrosion byproducts. These results provide insight into the understanding of how corrosion byproductscales form on lead pipes, and into the dissolution of lead in drinking water distributionsystems. Findings suggest that low to moderate alkalinity decreases corrosion rates, whilehigher alkalinities have a tendency to increase the corrosion rates of lead. Includes 9 references, table, figures.