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

    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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