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Husband, S.; Boxall, J. (2016)
Publisher: Elsevier
Journal: Water Research
Languages: English
Types: Article
Subjects: Waste Management and Disposal, Ecological Modelling, Pollution, Water Science and Technology
There is currently no accepted concept or approach for understanding and controlling discolouration risk associated with trunk mains. This paper assesses the applicability of cohesive layer theories to manage discolouration and a modelling tool that describes the process of particulate material accumulation. Results are presented from independent field experiments across the UK and internationally that evidence hydraulically induced mobilisation, or effectively cleaning, once imposed system shear stress exceeds normal conditions. Model calibration to measured data validates the cohesive layer concept with transferability in empirically derived parameters demonstrating a viable operational planning tool. The experiments highlight the accumulation of material layers as a continuous and ubiquitous process, such that fully clean pipes can never exist and helping explain how discolouration risk changes over time. A major practical implication of the novel understanding demonstrated in this paper is that discolouration risk in trunk mains can be simply managed by pro-active strategies that regularly vary the hydraulic conditions. This avoids the need for disruptive and expensive out of service invasive interventions yet offers operators a cost-effective long-term strategy to safeguard water quality.
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    • Abe, Y., Skali-Lami, S., Block, J.-C., Francius, G., 2012. Cohiveness and hydrodynamic properties of young drinking water biofilms. Water Res. 46, 1155e1166.
    • Aisopou, A., Stoianov, I., Graham, N., Karney, B., 2014. Analytical and experimental investigation of chlorine decay in water supply systems under unsteady hydraulic conditions. J. Hydroinformatics 16, 690e709.
    • Block, J.C., Bois, F.Y., Reasoner, D., Dutang, M., Mathieu, L., Paquin, J.L., Maillard, J., 1995. Disinfection of drinking water distribution systems. water Supply 13, 1e11.
    • Boxall, J.B., Prince, R., 2006. Modelling discolouration in a Melbourne (Australia) potable water distribution System. J. Water Supply Res. Technol. - AQUA 55, 207e219.
    • Boxall, J.B., Saul, A.J., 2005. Modelling discolouration in potable water distribution systems. J. Environ. Eng. ASCE 131, 716e725.
    • Boxall, J.B., Saul, A.J., Skipworth, P.J., 2001. A Novel Approach to modelling sediment movement in distribution mains based on particle characteristics. In: Ulanicki, B., Coulbeck, B., Rance, J.P. (Eds.), Water Software Systems: v. 1: Theory and Applications (Water Engineering & Management). Research Studies Press, Hertfordshire, UK.
    • Boxall, J.B., Skipworth, P.J., Saul, A.J., 2003. Aggressive flushing for discolouration event mitigation in water distribution networks. Water Sci. Technol. - Water Supply 3, 179e186.
    • Boxall, J.B., Saul, A.J., Skipworth, P.J., 2004. Modelling for hydraulic capacity. Am. Water Works Assoc. J. 96, 161e169.
    • Choi, Y.C., Morgenroth, E., 2003. Monitoring biofilm detachment under dynamic changes in shear stress using laser-based particle size analysis and mass fractionation. Water Sci. Technol. 47, 69e76.
    • Collins, R., Boxall, J., Karney, B., Brunone, B., Meniconi, S., 2012. How severe can transients be due to a sudden depressurization. J. Am. Water Works Assoc. 104, 67e68.
    • Cook, D.M., Boxall, J., 2011. Discoloration material accumulation in water distribution systems. J. Pipeline Syst. Eng. Pract. 2, 113e122.
    • Cook, D.M., Husband, P.S., Boxall, J., 2015. Operational management of trunk main discolouration risk. Urban Water J. http://dx.doi.org/10.1080/ 1573062X.2014.993994.
    • Derlon, N., Masse, A., Escudie, R., Bernet, N., Paul, E., 2008. Stratification in the cohesion of biofilms grown under various environmental conditions. Water Res. 42, 2102e2110.
    • Dienes, P., Sekar, R., Husband, P.S., Boxall, J.B., Osborn, A.M., Biggs, C.A., 2010. A new coupon design for simultaneous analysis of in situ microbial biofilm formation and community structure in drinking water distribution systems. Appl. Microbiol. Biotechnol. 87, 749e756.
    • Douterelo, I., Boxall, J., Dienes, P., Sekar, R., Fish, K., Biggs, C., 2014. Methodological approaches for studying the microbial ecology of drinking water distribution systems. Water Res. 65, 134e156.
    • Douterelo, I., Sharpe, R.L., Boxall, J., 2013. Influence of hydraulic regimes on bacterial community structure and composition in an experimental drinking water distribution system. Water Res. 47, 503e516.
    • DWI, 2014. Drinking Water 2013; Drinking Water in England and Wales 2013. A report by the Chief Inspector. Drinking Water Inspectorate, London.
    • Fish, K., Collins, R., Green, N., Sharpe, R.L., Osbourn, A., Boxall, J., 2015. Characterisation of the physical composition and microbial community structure of biofilms within a model full-scale drinking water distribution system. PLoS One 10.
    • Fish, K., Osbourn, A., Boxall, J., 2016. Characterising and understanding the impact of microbial biofilms and the extracellular polymeric substance (EPS) matrix in drinking water distribution systems. Environ. Sci. Water Res. Technol. 2 (4), 614e630.
    • Furnass, W.R., Collins, R., Husband, P.S., Sharpe, R.L., Mounce, S., Boxall, J.B., 2014. Modelling both the continual erosion and regeneration of discolouration material in drinking water distribution systems. Water Sci. Technol. Water Supply 14, 81e90.
    • Hossain, A., Naser, J., Imteaz, M.A., 2011. CFD investigation of particle deposition in a horizontal looped turbulent pipe flow. Environ. Model. Assess. 16, 359e367.
    • Husband, P.S., Boxall, J.B., 2008. Water Distribution System Asset Deterioration and Impact on Water Quality - a Case Study. ASCE, EWRI World Environmental & Water Resources Congress, 12e16 May 2008, Honolulu, USA.
    • Husband, P.S., Boxall, J.B., Saul, A.J., 2008. Laboratory studies investigating the processes leading to discolouration in water distribution networks. Water Res. 42, 4309e4318.
    • Husband, P.S., Boxall, J.B., 2010. Field studies of discolouration in water distribution systems: model verification and practical implications. J. Environ. Eng. 136, 86e94.
    • Husband, P.S., Whitehead, J., Boxall, J.B., 2010a. The role of trunk mains in discolouration. Water Manag. 163, 397e406.
    • Husband, P.S., Williams, R., Boxall, J.B., 2010b. Discolouration risk management for trunk mains. In: Water Distribution System Analysis 2010, 12e15 September 2010 (Tucson, Arizona, USA).
    • Husband, P.S., Boxall, J.B., 2011. Asset deterioration and discolouration in water distribution systems. Water Res. 45, 113e124.
    • Husband, P.S., Boxall, J., 2015. Predictive water quality modelling and resilience flow conditioning to manage discolouration risk in operational trunk mains. J. Water Supply Res. Tech. AQUA 64, 529e542.
    • Mccoy, W.F., Olson, B.H., 1986. Relationship among turbidity, particle counts and bacteriological quality within water distribution lines. Water Res. 20, 1023e1029.
    • Miller, S., 1994. Water Mains Cleaning Handbook. Water Research Centre, Swindon.
    • Mounce, S., Husband, P.S., Furnass, W.R., Boxall, J., 2014. Multivariate data mining for estimating the rate of discolouration material accumulation in drinking water systems. In: WDSA 2014. Elsevier, Bari.
    • Naser, G., Karney, B.W., Boxall, J.B., 2006. Red water and discolouration in a WDS: a numerical simulation. In: 8th Annual Water Distribution Systems Analysis Symposium, August 27-30 2006 (Cincinnati, Ohio, USA).
    • Pothof, I.W.M., Blokker, E.J.M., 2012. Dynamic hydraulic models to study sedimentation in drinking water networks in detail. Drink. Water Eng. Sci. 5, 87e92.
    • Prince, R., Goulter, I., Ryan, G., 2003. What causes customer complaints about discoloured water. WATER. J. Aust. Water Assoc. 30, 62e68.
    • Rittmann, B.E., 1982. The effect of shear stress on biofilm loss rate. Biotechnol. Bioeng. 24, 501e506.
    • Rossman, L.A., 2000. In: Agency, U.S.E.P. (Ed.), EPANET 2 Users Manual. EPA, Cincinnati.
    • Seth, A., Bachmann, R., Boxall, J., Saul, A.J., Edyvean, R., 2004. Characterisation of materials causing discolouration in potable water systems. Water Sci. Technol. 49, 27e32.
    • Seth, A., Husband, P.S., Boxall, J.B., 2009. Rivelin trunk main flow test. In: Boxall, J.B., Maksimovic, C. (Eds.), Computing and Control for the Water Industry, CCWI 2009. CRC Press, Sheffield, UK, pp. 431e434.
    • Slaats, N., Rosenthal, L.P.M., Siegers, W.G., Boomen, M.V.D., Beuken, R.H.S., Vreeburg, J.H.G., 2002. Processes involved in the generation of discolored water. In: KIWA (Ed.), KOA 02.058. American Water Works Association/Kiwa, The Netherlands.
    • Telgmann, U., Horn, H., Morgenroth, E., 2004. Influence of growth history on sloughing and erosion from biofilms. Water Res. 38, 3671e3684.
    • Ukwir, 2001. Hydraulic characterisation of deposits and review of sediment modelling. In: ACKERS, J., Brandt, M., Powell, J. (Eds.), Drinking Water Quality and Health - Distribution Systems - DW/03. UKWIR, LONDON.
    • Van Den Boomen, M., Van Mazijk, A., Beuken, R.H.S., 2004. First evaluation of new design concepts for self-cleaning distribution networks. J. Water Supply Res. Technol. - AQUA 53, 43e50.
    • Van Thienen, P., Vreeburg, J.H.G., Blokker, E.J.M., 2011. Radial transport processes as a precursor to particle deposition in drinking water distribution systems. Water Res. 45, 1807e1817.
    • Verberk, J.Q.J.C., Hamilton, L.A., O'halloran, K.J., Van Der Horst, W., Vreeburg, J.H.G., 2006. Analysis of particle numbers, size and composition in drinking water transportation pipelines: results of online measurements. Water Sci. Technol. Water Supply 6, 35e43.
    • Vreeburg, J.H.G., Schippers, D., Verberk, J.Q.J.C., Van Dijk, J.C., 2008. Impact of particles on sediment accumulation in a drinking water distribution system. Water Res. 42, 4233e4242.
    • Williams, S.M., 2000. In: LTD, M.C. (Ed.), Practical Guidelines for Mains Flushing.
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