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Managing discolouration in drinking water distribution systems by integrating understanding of material behaviour

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“Discoloured drinking water, caused by elevated concentrations of organic and inorganic particles, is unacceptable. It occurs due to accumulation and subsequent mobilisation of material from within drinking water distribution infrastructure. Discolouration is currently partially explained by either the theories of cohesive layers or gravitational sedimentation. It is proposed and shown here how the processes behind these two theories both occur and how to integrate them to better explain observed behaviour and inform operational interventions to reduce discolouration. Deficiencies in understanding regarding the process and factors that influence material accumulation are highlighted. Future research addressing these deficiencies will enable determination of long term sustainable management strategies balancing capital investment and operational maintenance to safeguard distribution of high quality drinking water.”

(Citation: Boxall, J., Blokker, E.J.M., et.al. – Managing discolouration in drinking water distribution systems by integrating understanding of material behaviour – Water Research 243(2023)art. no. 120416 – DOI: 10.1016/j.watres.2023.120416 – (Open Access))

© 2023 The Authors. Published by Elsevier Ltd. – This is an open access article distributed under the terms of the Creative Commons CC-BY license

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