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Implementation of the Calculation Method for 95% Upper Limit of Effluent Water Quality of Sewage Treatment Plant for Total Maximum Daily Loads : Percentile Ranking Method  

Park, Jae Hong (Watershed Management Research Division, National Institute of Environmental Research)
Kim, Dong Woo (Watershed Management Research Division, National Institute of Environmental Research)
Oh, Seung-Young (Watershed Management Research Division, National Institute of Environmental Research)
Rhew, Doug Hee (Water Pollution Cap System Division, National Institute of Environmental Research)
Jung, Dong Il (Environmental Cap System Research Department, National Institute of Environmental Research)
Publication Information
Journal of Korean Society on Water Environment / v.24, no.6, 2008 , pp. 676-681 More about this Journal
Abstract
The evaluation of the effluent water quality of sewage treatment plant is one of the most important factor in calculating total maximum daily loads (TMDLs). Current method to calculate 95% upper limit of effluent water quality of sewage treatment plant assuming normal distribution of data needs to be implemented in case of non-normal distribution. We have investigated the applicability of percentile ranking method as a non-parametric statistical analysis in case of non-normal distribution of data.
Keywords
95th upper limit; Non-normal distribution; Non-parametric methods; Percentile ranking method; Reference discharge water quality;
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