Development of chloropyromorphite coatings for lead water pipes

Jeremy D. Hopwood, Roger J. Davey, Merfyn O. Jones, Robin G. Pritchard, Peter T. Cardew, Ann Booth

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Formation of inorganic barrier coatings on lead water pipes might be an attractive option for water companies wishing to reduce lead levels in drinking water. This paper concerns the treatment of such pipes with aqueous solutions containing oxidant together with sources of phosphate and chloride to generate coatings of the highly insoluble lead mineral chloropyromorphite, Pb5(PO4)3Cl by simultaneous oxidation and precipitation, SEM, TEM, XRD and overnight leaching tests were used to characterise the structure and performance of the coatings. The impact of the choice of oxidant on the coating morphology and barrier properties is explored. Strategies for further refinement of the coatings via improved process control and morphological modification are discussed.

LanguageEnglish
Pages1717-1723
Number of pages7
JournalJournal of Materials Chemistry
Volume12
Issue number6
DOIs
Publication statusPublished - 30 Apr 2002
Externally publishedYes

Fingerprint

Lead
Pipe
Coatings
Water
Oxidants
Potable water
Drinking Water
Leaching
Process control
Minerals
Chlorides
Phosphates
chloropyromorphite
Transmission electron microscopy
Oxidation
Scanning electron microscopy
Industry

Cite this

Hopwood, J. D., Davey, R. J., Jones, M. O., Pritchard, R. G., Cardew, P. T., & Booth, A. (2002). Development of chloropyromorphite coatings for lead water pipes. Journal of Materials Chemistry, 12(6), 1717-1723. https://doi.org/10.1039/b111379h
Hopwood, Jeremy D. ; Davey, Roger J. ; Jones, Merfyn O. ; Pritchard, Robin G. ; Cardew, Peter T. ; Booth, Ann. / Development of chloropyromorphite coatings for lead water pipes. In: Journal of Materials Chemistry. 2002 ; Vol. 12, No. 6. pp. 1717-1723.
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Hopwood, JD, Davey, RJ, Jones, MO, Pritchard, RG, Cardew, PT & Booth, A 2002, 'Development of chloropyromorphite coatings for lead water pipes', Journal of Materials Chemistry, vol. 12, no. 6, pp. 1717-1723. https://doi.org/10.1039/b111379h

Development of chloropyromorphite coatings for lead water pipes. / Hopwood, Jeremy D.; Davey, Roger J.; Jones, Merfyn O.; Pritchard, Robin G.; Cardew, Peter T.; Booth, Ann.

In: Journal of Materials Chemistry, Vol. 12, No. 6, 30.04.2002, p. 1717-1723.

Research output: Contribution to journalArticle

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