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http://dx.doi.org/10.11001/jksww.2012.26.6.861

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

Kim, Hyun Jun (부산대학교 공과대학 사회환경시스템공학부)
Kim, Sang Hyun (부산대학교 공과대학 사회환경시스템공학부)
Publication Information
Journal of Korean Society of Water and Wastewater / v.26, no.6, 2012 , pp. 861-869 More about this Journal
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
chlorine; decay model; optimization; flow velocity; decay coefficient;
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