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Water 2017, 9(10), 811; https://doi.org/10.3390/w9100811

Data-Driven Study of Discolouration Material Mobilisation in Trunk Mains

College of Engineering, Mathematics and Physical Sciences, University of Exeter, North Park Road, Exeter EX4 4QF, UK
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Received: 14 September 2017 / Revised: 19 October 2017 / Accepted: 20 October 2017 / Published: 24 October 2017
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Abstract

It has been shown that sufficiently high velocities can cause the mobilisation of discolouration material in water distribution systems. However, how much typical hydraulic conditions affect the mobilisation of discolouration material has yet to be thoroughly investigated. In this paper, results are presented from real turbidity and flow observations collected from three U.K. trunk main networks over a period of two years and 11 months. A methodology is presented that determines whether discolouration material has been mobilised by hydraulic forces and the origin of that material. The methodology found that the majority of turbidity observations over 1 Nephelometric Turbidity Units (NTU) could be linked to a preceding hydraulic force that exceeded an upstream pipe’s hydraulically preconditioned state. The findings presented in this paper show the potential in proactively managing the hydraulic profile to reduce discolouration risk and improve customer service. View Full-Text
Keywords: water distribution systems; velocity; discolouration; modelling; turbidity; hydraulic events; water quality; mains conditioning water distribution systems; velocity; discolouration; modelling; turbidity; hydraulic events; water quality; mains conditioning
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Meyers, G.; Kapelan, Z.; Keedwell, E. Data-Driven Study of Discolouration Material Mobilisation in Trunk Mains. Water 2017, 9, 811.

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