Husband, S., Fish, K.E., Douterelo, I. et al. (1 more author) (2016) Linking discolouration modelling and biofilm behaviour within drinking water distribution systems. Water Science and Technology: Water Supply, 16 (4). pp. 942-950. ISSN 1606-9749
Abstract
High quality drinking water exits modern treatment works, yet water quality degradation such as discolouration continues to occur within drinking water distribution systems (DWDS). Discolouration is observed globally, suggesting a common process despite variations in source, treatment, disinfection and network configurations. The primary cause of discolouration has been identified as mobilisation of particulate material from pipe walls and the verified Prediction of Discolouration in Distribution Systems (PODDS) model uses measurable network hydraulics to simulate this response. In this paper the cohesive properties of discolouration material are explored and it is hypothesised that in simulating the turbidity response, the PODDS model is actually describing the development and cohesive strength behaviour of biofilms. Applying this concept can therefore facilitate a rapid and simple assessment of DWDS biofilm activity. A review of the findings from PODDS studies conducted internationally is presented, focussing on the macro or observable aspects of discolouration. These are compared and contrasted with associated biofilm studies which consider discolouration material at the micro-scale. Combining the results from these (past) studies to improve the understanding of interactions between microbial ecology and discolouration are discussed with a view to DWDS operational strategies that safeguard and optimise drinking water supply.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016 The Authors. This is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (CC BY 4.0), which permits copying, adaptation and redistribution, provided the original work is properly cited (http://creativecommons.org/licenses/by/4.0/). |
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) |
Funding Information: | Funder Grant number SEVERN TRENT WATER LIMITED UNSPECIFIED ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL (EPSRC) EP/I029346/1 ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL (EPSRC) EP/G029946/1 SEVERN TRENT WATER LIMITED UNSPECIFIED |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 09 Sep 2016 15:16 |
Last Modified: | 04 Nov 2016 07:09 |
Published Version: | http://dx.doi.org/10.2166/ws.2016.045 |
Status: | Published |
Publisher: | IWA |
Refereed: | Yes |
Identification Number: | 10.2166/ws.2016.045 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:101549 |
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