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Study on characteristic for Larson's ratio of water treatment plants

국내 정수장의 Larson's ratio 특성에 관한 연구

  • Min, Byung-dae (Water Supply and Sewerage Research Division, National Institute of Environmental Research Environmental Research Complex) ;
  • Chung, Hyen-mi (Water Supply and Sewerage Research Division, National Institute of Environmental Research Environmental Research Complex) ;
  • Ahn, Kyung-hee (Water Supply and Sewerage Research Division, National Institute of Environmental Research Environmental Research Complex) ;
  • Park, Ju-hyun (Water Supply and Sewerage Research Division, National Institute of Environmental Research Environmental Research Complex)
  • 민병대 (국립환경과학원 상하수도연구과) ;
  • 정현미 (국립환경과학원 상하수도연구과) ;
  • 안경희 (국립환경과학원 상하수도연구과) ;
  • 박주현 (국립환경과학원 상하수도연구과)
  • Received : 2016.07.22
  • Published : 2016.10.31

Abstract

In many countries in order to manage corrosion of water treatment process, it is currently using Langelier index (LI). However, management of the Larson's ratio (LR) to compare corrosion management and LI which can be generated by the water treatment process is required. In this study, in order to ensure data LR, factors associated with the actual corrosion resistance of water treatment plant was measured. Using the measured data, the model equation can be estimated alkalinity, and using the statutory water quality data, LR and alkalinity is estimated. At comparison of the measured value and estimated value of alkalinity, it appeared in $R^2$ = 0.629, using the statutory water quality data and estimated alkalinity model, LR and alkalinity (Whole water treatment plants : 472) is estimated. Concentration of estimated alkalinity is 0.5 mg/L to 107.5 mg/L (average : 23.2 mg/L), and LR is 0.1 to 10 (average : 1.3). At tendency to corrosion of investigated LR, "No metal tendency" (>0.5) is 39 water treatment plants, 8.26 %, and "corrosion metal tendency" is 433 water treatment plants, 91.74%.

Keywords

References

  1. Alvarez, B.C., Martinez, M.V., Vazquez, M.G., Solache, R.M., Fonseca, M.G., Trujillo, F.E. (2013). The corrosive nature of manganese in drinking water, Science of the Total Environment, 447, 10-16. https://doi.org/10.1016/j.scitotenv.2013.01.005
  2. Baird, G.M. (2011). The Epidemic of Corrosion, Part 1 : Examining Pipe Life, Journal AWWA, 14-21.
  3. Cuppett, J. Water Research Foundation. (2016), Lead and Copper Corrosion: An Overview of WRF Research, 1-39.
  4. Davil, M.F., Mahvi, A.H., Norouzi, M., Mazloomi, S., Amarluie, Al, Tardast, Al, Karamitabar, Y. (2009). Survey of Corrosion and Scaling Potential Produced Water from Ilam Water Treatment Plant, World Applied Sciences Journal, 7, 1-6.
  5. EPA, 2016, Optimal Corrosion Control Treatment Evaluation Technical Recommendations for Primacy Agencies and Public Water Systems.
  6. Imran, S.A., Dietz, J.D., Mutoti, G., Taylor, J.S., Randall, A.A. (2005), Modified Larsons Ratio Incorporating Temperature, Water Age, and Electroneutrality Effects on Red Water Release, Journal of Environmental Engineering, 1514-1520.
  7. JWRC, 2001, Investigation of Interim measure for lead reduction in Japan.
  8. Kim, J.H., Ryu, T.S., Kim, J.H., Ha, S.R. (2007). Characteristics of Pit Corrosion and Estimation Models of Corrosion Depth in Buried Water Pipes, Journal of Korean Society of Water and Wastewater, 21(6), 689-699.
  9. Kim, Y.K. and Kim, J.K. (2011). Introduction of Corrosion Index System for Stability of Drinking Water Quality. Journal of Korean Society of Water and Wastewater, 25(5), 707-717.
  10. Lim, J.C., Kim, J.K., Koo, J.Y. (2012). Coating formation of water supply pipes by inhibitor and water quality improvement effect, Journal of Korean Society of Water and Wastewater, 26(1), 97-106. https://doi.org/10.11001/jksww.2012.26.1.097
  11. Marangou, V.S. and Savvides, K. (2001). First desalination plant in cyprus-product water aggresivity and corrosion control, Desalination, 138, 251-258. https://doi.org/10.1016/S0011-9164(01)00271-5
  12. Melidis, P., Sanozidou, M., Mandusa, A., Ouzounis, K. (2007). Corrosion control by using indirect methods, Desalination, 213, 152-158. https://doi.org/10.1016/j.desal.2006.03.606
  13. Ministry of Environment, 2009, Manual of corrosion inhibitor at indoor water supply.
  14. Ministry of Environment, 2016, Notification about the operating drinking water quality monitoring.
  15. Prisyazhnium, V.A. (2007). Prognosticating scale-forming properties of water, Applied Thermal Engineering, 27, 1637-1641. https://doi.org/10.1016/j.applthermaleng.2005.12.004
  16. Shams, M., Mohamadi, A., Sajadi, S.A. (2012). Evaluation of Corrosion and Scaling Potential of Water in Rural Water Supply Distribution Networks of Tabas, Iran, World Applied Sciences Journal, 17(11), 1484-1489.
  17. US EPA, 2004, Desktop Corrosion Control Study.

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