A Pipeline Testing Facility for the Examination of Pipe-Wall Deposits and Red-Water Events in Drinking Water |
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| Authors: | S. E. Smith MSc T. Ta PhD D. M. Holt PhD A. Delanoue BSc J. S. Colbourne PhD CBiol MIBiol FIMLF A. H. L. Chamberlain PhD B. J. LIoyd PhD |
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| Affiliation: | Thames Water Utilities Limited, Reading, UK.;University of Surrey, Guildford, UK. |
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| Abstract: | Field surveys of Thames Water's distribution mains found the occurrence of 'red water' to be highly variable and localized. To model the many inter-related factors identified in the field, a controlled pipeline-testing facility was required to simulate conditions in a 'live' network, but on a pilot-scale. This was achieved by incorporating a specialized red-water testing facility into an existing experimental pipeline.
This paper describes the hydraulic and material design features, including the addition of a 'dead-end' section operated on a stagnation and flow regime, quantified using computational fluid dynamics. Following commissioning, the facility has provided detailed, time-sequenced observations on corrosion-deposit development and red-water generation under different hydraulic regimes. |
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| Keywords: | Computational fluid-dynamics iron uptake pipeline-testing facility red water stagnation |
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