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
Nadagouda, Mallikarjuna N.; Lytle, Darren A.; Schock, Michael R.
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About This Item
Full Description
The objective of this work was to compare the properties of lead solids formed during
bench-scale precipitation experiments to solids found on lead pipe removed from real
drinking water distribution systems and metal coupons used in pilot scale corrosion
testing. 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 byproduct
scales form on lead pipes, and into the dissolution of lead in drinking water distribution
systems. Findings suggest that low to moderate alkalinity decreases corrosion rates, while
higher alkalinities have a tendency to increase the corrosion rates of lead. Includes 9 references, table, figures.
