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Monitoring copper release in drinking water distribution systems.

L d'Antonio1, M Fabbricino, A Panico

  • 1Department of Hydraulic and Environmental Engineering Girolamo Ippolito, University of Naples Federico II, Via Claudio 21, 80125 Naples, Italy. luca.dantonio@unina.it

Water Science and Technology : a Journal of the International Association on Water Pollution Research
|April 29, 2008
PubMed
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This study validates a new method for real-time copper monitoring in drinking water pipes. Corrosion potential effectively measures copper levels and assesses alkalinity

Area of Science:

  • Environmental Science
  • Materials Science
  • Analytical Chemistry

Background:

  • Copper release from plumbing poses health risks.
  • Corrosion processes in drinking water systems are complex.
  • Monitoring copper levels is crucial for water quality.

Purpose of the Study:

  • To experimentally test a novel on-line monitoring procedure for copper release.
  • To investigate the use of corrosion potential as a surrogate for copper concentration.
  • To evaluate the influence of water alkalinity on copper passivation.

Main Methods:

  • Laboratory experiments using synthetic water.
  • Controlled variation of water alkalinity.
  • On-line monitoring of corrosion potential and copper concentration.

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Main Results:

  • Demonstrated the feasibility of using corrosion potential to estimate copper concentration.
  • Observed the significant effect of alkalinity on passivation phenomena.
  • Identified limitations of the proposed monitoring procedure.

Conclusions:

  • The new procedure shows potential for on-line monitoring of copper in drinking water.
  • Water alkalinity plays a key role in pipe corrosion and passivation.
  • Further research is needed to refine the monitoring technique.