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

Zhijian Tang, Seungkwan Hong, Weizhong Xiao, Sudipta Seal, James Taylor

    Research output: Contribution to journalArticlepeer-review

    14 Citations (Scopus)

    Abstract

    PbO, PbCO3, and Pb3(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 Pb3(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.

    Original languageEnglish
    Pages (from-to)3413-3427
    Number of pages15
    JournalCorrosion Science
    Volume48
    Issue number11
    DOIs
    Publication statusPublished - 2006 Nov

    Keywords

    • Lead corrosion
    • Thermodynamic modeling
    • Water quality
    • X-ray diffraction (XRD)
    • X-ray photoelectron spectroscopy (XPS)

    ASJC Scopus subject areas

    • General Chemistry
    • General Chemical Engineering
    • General Materials Science

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