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Water Quality Prediction and Forecast of Pollution Source in Milyanggang Mid-watershed each Reduction Scenario
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 Title & Authors
Water Quality Prediction and Forecast of Pollution Source in Milyanggang Mid-watershed each Reduction Scenario
Yu, Jae-Jeong; Yoon, Young-Sam; Shin, Suk-Ho; Kwon, Hun-Gak; Yoon, Jong-Su; Jeon, Young-In; Kang, Doo-Kee; Kal, Byung-Seok;
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Milyanggang mid-watershed is located in downstream of Nakdong river basin. The pollutants from that watershed have an direct effect on Nakdong river water quality and it's control is important to manage a water quality of Nakdong river. A target year of Milyanggang mid-watershed water environment management plan is 2013. To predict a water quality at downstream of Milyang river, we have investigated and forecasted the pollutant source and it's loading. There are some plan to construction the sewage treatment plants to improve the water quality of Milyang river. Those are considered on predicting water quality. As results, it is shown that the population of Milyanggang mid-watershed is 131,857 and sewerage supply rate is 62.2% and the livestock is 1,775.300 in 2006. It is estimated that the population is 123,921, the sewerage supply rate is 75.5% in 2013. The generated loading of BOD and TP is 40,735 kg/day and 2,872 kg/day in 2006 and discharged loading is 11,818 kg/day and 722 kg/day in 2006 respectively. Discharged loadings were forecasted upward 1.0% of BOD and downward 2.7% of TP by 2013. The results of water quality prediction of Milyanggang 3 site were 1.6 mg/L of BOD and 0.120 mg/L of TP in 2013. It is over the target water quality at that site in 2015 about 6.7% and 20.0% respectively. Consequently, there need another counterplan to reduce the pollutants in that mid-watershed by 2015.
Discharged loading;Generated loading;Mid-watershed;Water quality prediction;
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SWAT-QUALKO2 연계 모형을 이용한 관개기 순별 관개수질 모의,김지혜;정한석;강문성;송인홍;박승우;

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