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Preservation of Required Chlorine Concentration in Baghdad Water Supply Networks using on-Site Chlorine Injection | ||
| Journal of Engineering | ||
| Article 1, Volume 17, Issue 4, 2011, Pages 740-762 | ||
| Authors | ||
| Riadh Fadhil Al-Azzawe; Rafa H. Al-Suhaili | ||
| Abstract | ||
| The chlorine concentration variation in Baghdad water networks was studied. The chlorine data were collected from Mayoralty of Baghdad and Ministry of Environment (MOE) for the networks for both sides of the city Karkh and Rasafa for (2008-2009). The study of these data indicates that there are no systematic testing program .Classified GIS maps showed that the areas far from the treatment plants have almost always low chlorine concentration .This indicates that the problem of the low chlorine concentration in the far areas is due to cracks of pipe along the conveyance path ,as expected. The area's most frequently have low concentration are Al-sadir,Al-Kadhimya, and Al-Amiria . It was found also that the chlorine concentrations were lowest in summer months than those in winter months.The Amiria area district (636) was selected as a case study to test the ability of using the quantitative- qualitative model in the EPANET software, to find the required onsite chlorine injection point number, locations and dose, so as to raise the chlorine concentration to the acceptable limits in the other nodes of the network. The bulk decay coefficient was found to be (-2.212)1/day and the wall coefficients were found to be between (-0.001)to(-0.9)1/day The main conclusion of this study is that the onsite injection can improve the chlorine concentration in Baghdad water supply networks. The EPANET model can be used effectively to obtain the required injection program for this purpose. | ||
| Keywords | ||
| Water; supply; Network; EPANET; Geographical; Information; System; Sectoral; Chlorine; injection | ||
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