Survey of corrosion and scaling potential in drinking water resources of the villages in Qom province by use of four stability indexes (With Quantitative and qualitative analysis

Authors

  • Ahmad Reza Yari Resarch center for environmental pollutants, Qom university of medical sciences, Qom, Iran
  • Ali Azari Student’s Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
  • Ehsan Ahmadi M.Sc Student, Department of Environmental Health Engineering, Tehran University of Medical Sciences, Tehran, Iran
  • Fateme Gharagazlo Tehran University of Medical Sciences
  • Masoume Tahmasbi Zade Tehran University of Medical Sciences
  • Roshanak Rezaei Kalantari PhD. Assistant Professor, Department of Environmental Health Engineering, Iran University of Medical Sciences, Tehran, Iran
Abstract:

Background & Aims of the Study:  Corrosion and scaling are the most common problems of water facilities. Corrosion imposes many financial and health loss on system and consumer respectively, scaling also causes clogging and head loss in network. The purpose of this study is to determine the corrosion and scaling potential of water supply sources of Qom villages. Materials & Methods This cross-sectional study was done in 12 months (from 2011-2012). 100 samples were collected to determine pH, total dissolved solids (TDS), temperature, alkalinity, Calcium hardness and residual chlorine, and water corrosion and scaling have been studied by using Langelier, Ryzner, aggressive and Puckorius indexes. Results:  The results illustrate that Qom village water according to the Langelier index equals 1.62 (±0.11), according to Rayzner index equals 10.5 (±0.17), based on Aggressive index equals 12.035 (±0.14) and based on Pokurious index equals 9.92 (±0.13) respectively. Comparison of four index’s were showed that Water conditions in all villages of Qom is in corrosive range. Conclusions:  According to this study, water supply in Qom village is corrosive, one of the effective ways for solves this problem is pH adjustment by lime

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Journal title

volume 2  issue 4

pages  127- 134

publication date 2013-11

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