Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
권호 표지
DOI QR코드

DOI QR Code

Prediction of Chlorine Concentration in a Pilot-Scaled Plant Distribution System

Pilot 규모의 모의 관망에서의 염소 농도 예측

  • Kim, Hyun Jun (부산대학교 공과대학 사회환경시스템공학부) ;
  • Kim, Sang Hyun (부산대학교 공과대학 사회환경시스템공학부)
  • 김현준 (Department of Environmental Engineering, Pusan National University) ;
  • 김상현 (Department of Environmental Engineering, Pusan National University)
  • Received : 2012.09.28
  • Accepted : 2012.12.07
  • Published : 2012.12.15
Download PDF
⟨ Previous Next ⟩

Abstract

The chlorine's residual concentration prevents the regrowth of microorganism in water transport along the pipeline system. Precise prediction of chlorine concentration is important in determining disinfectant injection for the water distribution system. In this study, a pilot scale water distribution system was designed and fabricated to measure the temporal variation of chlorine concentration for three flow conditions (V = 0.88, 1.33, 1.95 m/s). Various kinetic models were applied to identify the relationship between hydraulic condition and chlorine decay. Genetic Algorithm (GA) was integrated into five kinetic models and time series of chlorine were used to calibrate parameters. Model fitness was compared by Root Mean Square Error (RMSE) between measurement and prediction. Limited first order model and Parallel first order showed good fitness for prediction of chlorine concentration.

Keywords

References

  1. A.O, A. -J. (2007) Chlorine decay in drinking-water transmission and distribution systems: Pipe service age effect. Water Research, Vol. 41(2), pp. 387-396. https://doi.org/10.1016/j.watres.2006.08.032
  2. Digiano, F. A. Z., Weidong (2005) Pipe Section Reactor to Evaluate ChlorineWall Reaction. Journal AWWA, Vol. 97(1), pp. 74-85.
  3. Feben D, T. M. (1951) Studies on chlorine demand constant. Journal of American Water Works Association, Vol. 43(11), pp. 10.
  4. Ginasiyo Mutoti, J. D. D., Jorge Arevalo, James S. Tayor (2007). "\Combined chlorine dissipiation : Pipe material, water quality and hydraulic effects. Journal of American Water Works Association Vol. 99(10), pp. 96-106.
  5. Haas, C. N. and Karra, S. B. (1984) Kinetics of wastwater chlorine demand exertion. Journal of Water Pollution Control Federation, Vol. 56(2), pp. 4.
  6. Hallam, N., Hua, F., West, J., Forster, C. and Simms, J. (2003). Bulk Decay of Chlorine in Water Distribution Systems. Journal of Water Resources Planning and Management, Vol. 129(1), pp. 78-81. https://doi.org/10.1061/(ASCE)0733-9496(2003)129:1(78)
  7. Hua, F ., West, J. R., Barker, R. A. and Forster, C. F. (1999). Modelling of chlorine decay in municipal water supplies. Water Research, Vol. 33(12), pp. 2735-2746. https://doi.org/10.1016/S0043-1354(98)00519-3
  8. Menaia . J., S. T. C., A. Lopes, E. Fonte and J. Palma (2003). Dependency of bulk chlorine decay rates on flow velocity in water distribution networks. Water Science and Technology : Water Supply, Vol. 3(1-2), pp. 209-214.
  9. Nagatani. T., Yasuhara. K., Murata. K., Takeda. M., Nakamura. T., Fuchigami. T. and Terashima. K. (2008). Residual chlorine decay simulation in water distribution system. International Symposium on Water Supply Technology.
  10. Powell, J. C., Hallam, N. B., West, J. R., Forster, C. F. and Simms, J. (2000). Factors which control bulk chlorine decay rates. Water Research, Vol. 34(1), pp. 117-126. https://doi.org/10.1016/S0043-1354(99)00097-4
  11. Qualls, R. G. and Johnson, J. D. (1983). Kinetics of the short-term consumption of chlorine by fulvic acid. Environmental Science & Technology, Vol. 17(11), pp. 692-698. https://doi.org/10.1021/es00117a013