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KMID : 0382420020280020061
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Korean Journal of Environmental Health Society
2002 Volume.28 No. 2 p.61 ~ p.69
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Study in the integrated watershade management for conservation of water resources (Ⅱ)- Water quality modeling and simulation of Oship stream-
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Huh In-Ryang
Jeong Ui-Ho
Kwon Jae-Hyuk
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Abstract
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Oship stream is located nearby south eastern coasta. This study was performed to find out water quality modeling and then to predict water quality of Oship stream. Based on survey data, BOD, T-N, T-P calibration and verification result were in good agreement with measured value within mean coefficient variance(MSE) value, which were 13.9%, 9.0%, 26.5% and 19.5%, 12.0%, 16.5%, respectively, Sectional water quality predictions of the main stream of Oship stream are executed on the basis of the following cases I) with sewage treatment of Dogye-eup 2) reduction of mine wastewater treatment of 80% in th basin. As a result, BOD, T-P improvement rates at down stream of Oship stream, case 1) were appeared ]2.2%, 22.2%. case 2) maximum sulfate ion and conductivity reduction removal rate of Oship stream were 58%, 68%. The main pollution sources of Oship-stream were almost domestic wastewater and mine wastewater discharged from Oogye-eup which located in upper stream. The large effects will appear after the construction of Dogye sewage water treatment plant which remove the organic matter and nutrients in these sewage water. The waste water from mine can not easily to treat for characteristics of effluence and economic problems. However, to achieve the goal of water quality in Oship-stream water system, treatments of those are necessary.
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