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Estimating BOD, CDO and TOC Hydrologic Flux in Nakdong River Basin  

Lee, A-Yeon (Department of Environmental Engineering, Pukyong National University)
Park, Moo-Jong (Department of Civil Engineering, Hanseo University)
Jo, Deok-Jun (Division of Architecture & Civil Engineering, Dongseo University)
Kim, Sang-Dan (Department of Environmental Engineering, Pukyong National University)
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Abstract
This study presents a constituent load estimating procedure that can be operated with the present Korean TMDL monitoring system. The modified TANK model is used as a daily river flow simulation model whose parameters are estimated from 8-day intervals flow data. Constituent loads are estimated with the 7-parameter log linear model whose parameters are estimated by the minimum variance unbiased estimator. Results from Nakdong river basin reveals that the proposed procedure provides satisfactory TOC and BOD load estimates. As an application, a representative load duration curve is derived for working out a way to represent the overall hydrologic flux of BOD, COD and TOC at Nakdong river basin. The present water quality can be checked stochastically by Load Duration Curve through this study and presented visually.
Keywords
Flow Duration Curve; Load Duration Curve; Total Organic Carbon; TMDL;
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Times Cited By KSCI : 3  (Citation Analysis)
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