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The physico-chemistry of biofilm-mediated pitting corrosion of copper pipe supplying potable water

The physico-chemistry of biofilm-mediated pitting corrosion of copper pipe supplying potable water
The physico-chemistry of biofilm-mediated pitting corrosion of copper pipe supplying potable water
Copper is a generally robust material that has beneficial properties to reduce biofilm formation and pathogen colonisation of pipes supplying potable water. However, a rare pitting corrosion can occur in soft, poorly buffered waters that can lead to pipe failure. This has been shown to be mediated by a copper-tolerant biofilm whose physical and chemical heterogeneity can establish microenvironments for corrosion potentials, causing micro pits that eventually coalesce into large perforations through the pipe wall. Control of the biofilm, for example through reduced cold water or elevated hot water temperatures, can suppress this corrosion phenomenon.
0273-1223
91-98
Keevil, C.W.
cb7de0a7-ce33-4cfa-af52-07f99e5650eb
Keevil, C.W.
cb7de0a7-ce33-4cfa-af52-07f99e5650eb

Keevil, C.W. (2004) The physico-chemistry of biofilm-mediated pitting corrosion of copper pipe supplying potable water. Water Science & Technology, 49 (2), 91-98.

Record type: Article

Abstract

Copper is a generally robust material that has beneficial properties to reduce biofilm formation and pathogen colonisation of pipes supplying potable water. However, a rare pitting corrosion can occur in soft, poorly buffered waters that can lead to pipe failure. This has been shown to be mediated by a copper-tolerant biofilm whose physical and chemical heterogeneity can establish microenvironments for corrosion potentials, causing micro pits that eventually coalesce into large perforations through the pipe wall. Control of the biofilm, for example through reduced cold water or elevated hot water temperatures, can suppress this corrosion phenomenon.

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Published date: January 2004

Identifiers

Local EPrints ID: 56371
URI: http://eprints.soton.ac.uk/id/eprint/56371
ISSN: 0273-1223
PURE UUID: b2a14b5b-3856-4e05-b006-3cfdc5e6a1d0
ORCID for C.W. Keevil: ORCID iD orcid.org/0000-0003-1917-7706

Catalogue record

Date deposited: 08 Aug 2008
Last modified: 09 Jan 2022 03:08

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