Furnass, W.R., Collins, R.P., Husband, P.S. et al. (3 more authors) (2014) Modelling both the continual erosion and regeneration of discolouration material in drinking water distribution systems. Water Science and Technology: Water Supply, 14 (1). pp. 81-90. ISSN 1606-9749
Abstract
The erosion of the cohesive layers of articulate matter that causes discolouration in water distribution system mains has previously been modelled using the Prediction of Discolouration in Distribution Systems (PODDS) model. When first proposed, PODDS featured an unvalidated means by which material regeneration on pipe walls could be simulated. Field and laboratory studies of material regeneration have yielded data that suggest that the PODDS formulations incorrectly model these processes. A new model is proposed to overcome this shortcoming. It tracks the relative amount of discolouration material that is bound to the pipe wall over time at each of a number of shear strengths. The model formulations and a mass transport model have been encoded as software, which has been used to verify the model’s constructs and undertake sensitivity analyses. The new formulations for regeneration is conceptually consistent with field and laboratory observed data and has potential value in the proactive management of water distribution systems, such as evaluating change in discolouration risk and planning timely interventions.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2013 IWA. This is an author produced version of a paper subsequently published in Water Science and Technology: Water Supply. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | discolouration; distribution networks; water quality modelling |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Civil and Structural Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 16 Jun 2015 14:05 |
Last Modified: | 30 Aug 2019 14:47 |
Status: | Published |
Publisher: | IWA Publishing |
Refereed: | Yes |
Identification Number: | 10.2166/ws.2013.176 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:87035 |