Effect of Ageing of Pipe and Lining Materials on Elemental Composition of Suspended Particles in a Water Distribution System

Masafumi Fujita (), Yoshiyuki Ishiwatari, Iori Mishima, Norihiko Utsuno and Takeshi Kato

Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), 2014, vol. 28, issue 6, 1645-1653

Abstract: Water samples collected from a drinking water supply system were assessed for elemental composition (Al, Si, Ca, Mn, Fe and Zn) of suspended particles. Particulate Fe, Mn and Al concentrations were significantly correlated even though their origins are considered to be different. The results of Principal Component Analysis (PCA) and cluster analysis revealed that elemental compositions can vary according to pipe and lining materials and service ages. Differences in concentrations of the particulate elements were calculated between upstream and downstream sites and then subjected to further PCA. In PC1, Fe, Mn and Al exhibited high factor loadings, whereas only Ca was a high contributor for PC2. This implies that ageing-related corrosion and degradation of mortar lining can affect the elemental composition of suspended particles in water distribution systems. We concluded that the elemental composition of suspended particulates can be used to detect ageing pipes in water distribution systems. Copyright Springer Science+Business Media Dordrecht 2014

Keywords: Particle; Element; Ageing; Mortar lining; Steel pipe; Principal component analysis (search for similar items in EconPapers)
Date: 2014
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DOI: 10.1007/s11269-014-0571-9

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