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.
Modelling approach to quickly assess polyethylene ageing by chlorine dioxide in distribution systems
Z. Reddad, S. Benesse, C. Helmer, R. Bonnard, B. Rabaud; Modelling approach to quickly assess polyethylene ageing by chlorine dioxide in distribution systems. Water Science and Technology: Water Supply 1 December 2014; 14 (6): 984–990. doi: https://doi.org/10.2166/ws.2014.052
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