ENG  Vol.5 No.1 , January 2013
Disadvantage Pressure Changes on the Decline of Water Quality in Water Distribution Systems
Abstract

Systems that have big transmission line may have problem on changes of pressure in the distribution system. Because pressure rate changes have been too much between water treatment plant and dead ends in distribution system. This study is to analyze the effects pressure changes on the water quality in water distribution systems. It is located in south west of Ahwaz in IRAN. Ahwaz has five water treatment plants. In Ahwaz, two methods will be utilized. In the first method, samples will be taken from different locations in other to examine the quality of water in the distribution systems and the other method involves the use of simulation of models EPANET. Based on the EPANET model analysis of the water distribution system of Ahwaz as shown in result above the systems has large transmission line and exten- sive networks. So, the distance travelled and residence times have been causing to increase bacterial growth (HPC), chlorine consumption and hydraulic change (pressure) in water distribution system in Ahwaz. Pressure has a reversed relationship with bacterial growth (HPC) and Pressure has a direct relationship with residual chlorine. Pressure change has been causing to increase chlorine consumption more. So, Kw hasn’t any relationship with pressure and bacterial growth (HPC). The result of pressure changes among others can decrease in chlorine content and hydraulic factors, because the systems may be extensive and thus possess complex networks and hangs in quantity cause pressure of flow. Hence hydraulic changes (pressure) could affect of water quality in the water distribution system.


Cite this paper
H. Shamsaei, O. Jaafar and N. Basri, "Disadvantage Pressure Changes on the Decline of Water Quality in Water Distribution Systems," Engineering, Vol. 5 No. 1, 2013, pp. 97-105. doi: 10.4236/eng.2013.51015.
References

[1]   Environmental Hydraulics Group, “Drinking Water Distribution Systems,” 2002, pp. 233-246.

[2]   S. M. Mustonen, S. Tissari, L. Huikko, M. Kolehmainen, M. J. Lehtola and A. Hirvonen, “Evaluating Online Data of Water Quality Changes in a Pilot Drinking Water Distribution System with Multivariate Data Exploration Methods,” Water Research, Vol. 42, No. 10, 2008, pp. 2421-2430. doi:10.1016/j.watres.2008.01.015

[3]   C. Mains, “Biofilm Control in Distribution Systems,” National Environ Service Center, Vol. 8, No. 2, 2008, pp. 1-4.

[4]   Y. Kambam, “Potable Water Treatment,” Biofilms in Water Distribution, 2000, pp. 1-5.

[5]   USEPAO Research, “Control of Biofilm Growth in Drinking Water Distribution Systems,” Office of Research and Development, 1992.

[6]   B. Ulanicki, P. Bounds, J. Rance and L. Reynolds, “Open and Closed Loop Pressure Control for Leakage Reduction,” Urban Water, Vol. 2, No. 2, 2000, pp. 105-114. doi:10.1016/S1462-0758(00)00048-0

[7]   L. Guzzella, F. Di Caterino, S. Monarca, C. Zani, D. Feretti, I. Zerbini, G. Nardi, A. Buschini, P. Poli and C. Rossi, “Detection of Mutagens in Water-Distribution Systems after Disinfection,” Mutation Research/Genetic Toxicology and Environmental Mutagenesis, Vol. 608, No. 1, 2006, pp. 72-81. doi:10.1016/j.mrgentox.2006.05.010

[8]   Y. K.Cohen, “Problems in Water Distribution (Solved, Explained, and Alied),” CRC Press, LLC, Boca Raton, 2002, pp. 133-143.

[9]   P. Piriou, S. Dukan, Y. Levi and P. Jamge, “Prevention of Bacterial Growth in Drinking Water Distribution Systems,” Water Science and Technology, Vol. 35, No. 11, 1997, pp. 283-287. doi:10.1016/S0273-1223(97)00273-4

[10]   N. Hallam, J. R. West, C. Forster, J. Powell and I. Spencer, “The Decay of Chlorine Associated with the Pipe Wall in Water Distribution Systems,” Water Research, Vol. 36, No. 14, 2002, pp. 3479-3488. doi:10.1016/S0043-1354(02)00056-8

[11]   C. Volk, E. Dundore, J. Schiermann and M. Lechevallier, “Practical Evaluation of Iron Corrosion Control in a Drinking Water Distribution System,” Water Research, Vol. 34, No. 6, 2000, pp. 1967-1974. doi:10.1016/S0043-1354(99)00342-5

[12]   H. Tung and Y. F. Xie, “Association between Haloacetic Acid Degradation and Heterotrophic Bacteria in Water Distribution Systems,” Water Research, Vol. 43, No. 4, 2009, pp. 971-978.

[13]   A. J. Whelton, A. M. Dietrich, G. A. Burlingame, M. Schechs and S. E. Duncan, “Minerals in Drinking Water: Impacts on Taste and Importance to Consumer Health,” Water Science and Technology, Vol. 55, No. 5, 2007, pp. 283-291. doi:10.2166/wst.2007.190

[14]   I. Petr, Z. Svitak, A. Pradhan and A. Tarai, “Modelling Intermittent Water Supply Systems with EPANET,” 8th Annual WD Symposium EPA, Cincinnati, 27-30 August 2006.

[15]   Z. M. Lahlou, “Water Quality in Distribution Systems,” A National Drinking Water, Clearinghouse, Fact Sheet, 2002.

 
 
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