Assessing water quality in a distribution network based on hydraulic conditions

Tomperi J. ^a

^a University of Oulu, Pentti Kaiteran katu 1, Oulu, 90570, Finland

E-mail: jani.tomperi@oulu.fi

February 6, 2024

https://doi.org/10.29258/CAJWR/2024-R1.v10-1/40-67.eng

Abstract

Abnormalities in hydraulic conditions inside a water distribution network are strongly related to the deterioration of drinking water quality. Leaking pipes and valves cause changes to the hydraulic conditions and allow the entry of impurities into the distribution system. Sudden flow and pressure shocks can detach soft deposits and biofilms from the pipe surface, resulting in deterioration of water quality. Online water quality measurements in a distribution network are scarce, but more common online flow and pressure measurements reveal the changes in hydraulic conditions in a distribution network and can be utilized to assess the water quality continuously and near real-time via modelling. Here, a data-driven model based solely on the online flow and pressure measurements in a distribution network for assessing the water quality at the end of an urban district metered area is presented. With the accuracy of R2 0.77, the developed data-driven model is able to assess the level of and the changes in potable water quality in a non-laborious and cost-effective way, also enabling proactive operations to ensure the distribution of high-quality drinking water to the consumers.

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For citation: Tomperi, J. (2024). Assessing water quality in a distribution network based on hydraulic conditions. Central Asian Journal of Water Research,  10(1), 40-67. https://doi.org/10.29258/CAJWR/2024-R1.v10-1/40-67.eng

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