Title

Effect of varying blends of finished RO, surface and ground waters on solid lead surfaces

Authors

Authors

Z. J. Tang; S. K. Hong; W. Z. Xiao; S. Seal;J. Taylor

Comments

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Abbreviated Journal Title

Corrosion Sci.

Keywords

lead corrosion; water quality; X-ray diffraction (XRD); X-ray; photoelectron spectroscopy (XPS); thermodynamic modeling; DRINKING-WATER; COPPER RULE; CORROSION; CARBONATE; SOLUBILITY; GRIDS; Materials Science, Multidisciplinary; Metallurgy & Metallurgical; Engineering

Abstract

PbO, PbCO3, and Pb-3(OH)(2)(CO3)(2) were identified as primary corrosion products on lead coupons following three months of exposure to finished RO, surface and ground water by XRD and XPS. Based on these results, a Pb-3(OH)(2)(CO3)(2) Solid phase equilibrium model was used as a function of water quality, was modified using diffusion theory and accurately predicted lead release for a majority of field observations. SEM photographs revealed sulfate and chloride affected the surface structure of corrosion scales and lead release. (c) 2006 Elsevier Ltd. All rights reserved.

Journal Title

Corrosion Science

Volume

48

Issue/Number

11

Publication Date

1-1-2006

Document Type

Article

Language

English

First Page

3413

Last Page

3427

WOS Identifier

WOS:000242120700003

ISSN

0010-938X

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