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 journalArticle

5 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 1

Keywords

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

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)

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