Tehran University of Medical Sciences

Science Communicator Platform

Stay connected! Follow us on X network (Twitter):
Share this content! On (X network) By
Potential for Iron Release in Drinking Water Distribution System: A Case Study of Hamedan City, Iran Publisher



Mesdaghinia A1 ; Nabizadeh Nodehi R2 ; Nasseri S1 ; Imran SA3 ; Samadi MT4 ; Hadi M1
Authors
Show Affiliations
Authors Affiliations
  1. 1. Center for Water Quality Research (CWQR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, 8th floor, Gol Building, North Karegar St., Enghelab Sq., Tehran, Iran
  2. 2. Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, 5th floor, Poor-e-Sina St., Tehran, Iran
  3. 3. Aquastructure Solutions Inc., 150A—2 Research Drive, Regina, S4S 7H9, SK, Canada
  4. 4. School of Public Health, Health Sciences Research Center, Hamadan University of Medical Sciences, Mahdiyeh St., Hamedan, Iran

Source: Desalination and Water Treatment Published:2016


Abstract

Abstract: Blending of water from different sources into an urban drinking water distribution system can have unintended impacts, such as corrosion and/or release of corrosion by-products from pipe surfaces. Hamedan, a city in west Iran, receives water from four different sources that have different physical and chemical characteristics. The potential for iron release from iron distribution pipes due to in situ blending of different sources was investigated in this study. A dedicated software was developed to calculate the corrosion indices of different blends expected in different zones of Hamedan’s water distribution system. The calculated corrosion indices, and iron release were verified and correlated to actual conditions through water sampling conducted in different zones of the city. The Langelier index (LI), Ryznar stability index (RSI or RI), Puckorius scaling index (PSI), and the calcium carbonate precipitation potential were found to be −0.60 ± 0.30, 8.63 ± 0.57, 8.18 ± 0.34, and −10.95 ± 6.9 mg CaCO3/L, respectively. Alkalinity, pH, and carbonate ion were identified as the important parameters that have a role in the control of iron release. Significant linear correlations of LI, RI, and PSI to iron concentration were observed in samples collected from different zones of the distribution system. The spatial correlation between iron concentration and corrosion indices in different zones of the water distribution system was determined using ordinary Kriging interpolation. These indices indicated a wide variation of corrosive potential in different zones of the distribution system. Therefore, these corrosion indices can be used to estimate, monitor, and minimize the potential for iron release from distribution systems. © 2015 Balaban Desalination Publications. All rights reserved.
Related Docs
1. Corrosion or Scaling Tendency and Trend for Water Resources in Rural Areas of Kashan, Iranian Journal of Health and Environment (2019)
2. Evaluation of Groundwater Quality and Assessment of Scaling Potential and Corrosiveness of Water Supply Networks, Iran, Journal of Water Supply: Research and Technology - AQUA (2017)
3. Evaluation of Corrosion and Scaling Tendency Indices in a Drinking Water Distribution System: A Case Study of Bandar Abbas City, Iran, Journal of Water and Health (2015)
4. Evaluation of Corrosion and Scaling Tendency Indices in Water Distribution System: A Case Study of Torbat Heydariye, Iran, Desalination and Water Treatment (2016)
Experts (# of related papers)
Mahdi Hadi (1)