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Importance of demand modelling in network water quality models: a review
1Kiwa Water Research, Groningenhaven 7, 3430 BB Nieuwegein, The Netherlands
2Delft University of Technology. Department of Civil Engineering and Geosciences, P.O. Box 5048, 2600 GA Delft, The Netherlands
3University of Cincinnati, Department of Civil and Environmental Engineering, P.O. Box 210071 Cincinnati, OH 45221-0071, USA
Abstract. Today, there is a growing interest in network water quality modelling. The water quality issues of interest relate to both dissolved and particulate substances, with the main interest in residual chlorine and (microbiological) contaminant propagation, respectively in sediment leading to discolouration. There is a strong influence of flows and velocities on transport, mixing, production and decay of these substances in the network. This imposes a different approach to demand modelling which is reviewed in this article.
For transport systems the current hydraulic models suffice; for the more detailed distribution system a network water quality model is needed that is based on short time scale demands that considers the effect of dispersion and transients. Demand models that provide stochastic residential demands per individual home and on a one-second time scale are available. A stochastic demands based network water quality model needs to be developed and validated with field measurements. Such a model will be probabilistic in nature and will offer a new perspective for assessing water quality in the DWDS.
Discussion Paper (PDF, 324 KB) Interactive Discussion (Closed, 4 Comments) Final Revised Paper (DWES)
Citation: Blokker, E. J. M., Vreeburg, J. H. G., Buchberger, S. G., and van Dijk, J. C.: Importance of demand modelling in network water quality models: a review, Drink. Water Eng. Sci. Discuss., 1, 1-20, 2008. Bibtex EndNote Reference Manager
