Author(s): A. Di Nardo; M. Di Natale; R. Greco; A. Guida
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Keywords: No Keywords
Abstract: Management of water supply networks requires frequent control of distributed water quality. Rich data sets of residual chlorine concentration are therefore often available. In this paper, the suitability of using such concentration data as tracers to get information about spatial distribution of water demand is investigated. To this aim, a sensitivity analysis of the performance of a water quality model has been carried out. Residual chlorine concentration data of hydraulic network of Giugliano in Campania, collected in 41 locations between November 2007 and February 2009 has been used as target data set. The proposed methodology consists in dividing the network into districts, each characterized by its own base demand. District base demand multipliers are introduced in order to analyze the effects of water demand distribution on the results of water quality model. The obtained results show high sensitivity of simulated chlorine concentrations to variations of district demand multipliers. The best agreement between simulated and measured chlorine concentrations is obtained with demand multipliers looking consistent with district urban destinations.
Year: 2009