Modelling approach to quickly assess polyethylene ageing by chlorine dioxide in distribution systems

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Courtesy of IWA Publishing

A prediction model for the life of polyethylene (PE) has been developed as a function of chlorine dioxide concentration and pressure. It can be coupled with an existing hydraulic model covering chlorine dioxide residuals and pressure values in the network. It allows a quick identification of the areas of highest PE failure risk. The methodology is applied successfully to a real distribution system in France.

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