Survey of Corrosion and Silting Potential in Drinking Water of Urban Distribution System During One Year Period a Case Study



Haghighi SA¹ ; Mansourin N² ; Mirzaei N^{2, 3} ; Azizi N¹ ; Hosseinei Z⁴ ; Sharafi H¹ ; Sharafi K^{1, 2}
Source: International Journal of Pharmacy and Technology Published:2015

Abstract

One of the main problems in urban and rural water distribution systems is corrosion and silting which occurs during physicochemical reactions in transmission and distribution tubes and decreases the water quality and reduces facility`s lifetime. The aim of this research is determination of corrosion and silting potential of the drinking water of Kermanshah city in distribution system during one year period (2014). This is a cross-sectional study that carried out by Langelier and Ryznar stability indexes to determinate corrosion and silting potential of water in the distribution system of Kermanshah city. For measuring above indexes in water of distribution system of Kermanshah, seven different regions of this city are chosen randomly. The samples were taken in these 7 regions during 3 months. Total dissolved solids, calcium hardness, total alkalinity, water temperature, pH, pHs, Langelier and Ryznar stability indexes were measured. Simple sampling according to standard method instruction was used. The results demonstrate that mean and standard deviation is -0.28 and -0.09 for Langelier index, 7.57 and 0.57 for Ryznar index, respectively. Survey of these indexes indicate that drinking water of Kermanshah city is corrosion so water quality of distribution system needs to monitored and necessary actions for controlling the corrosion have to perform. © 2015, International Journal of Pharmacy and Technology. All rights Reserved.