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KMID : 1024520080170010113
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Journal of the Environmental Sciences
2008 Volume.17 No. 1 p.113 ~ p.118
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Improvement Effect of Water Quality along the Water Discharged Area by Water Dispersion from the Sewage Disposal Plant
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Kim Dong-Soo
Park Jong-Tae
Kim Yong-Gu
Park Sung-Chun
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Abstract
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[ ] base water concentration on monthly BOD has been kept at the Geukrak bridge point for this research target and it indicates the water quality under the existed rank. Due to this present condition of water quality, the demage of ecology from the upper stream to the lower one of the bridge could be conjectured. Moreover, nonstructural extinction of the ecology seems to have gotten worse between both the streams of Yeoungsan River. On this research, eco-corridor between the upper stream and the lower stream of the river should be ensured, the ecological demage needs to be cut off, a dispersed discharge method which the existed method of the 1st sewage plant in Gwangju was enhanced to should be inducted for the procuring of various water ecosystem, and the conditions by the scenario suggested from this research could be applied to a water quality model. then, analysis the improvement effect of the water quality adjacent the river. From the test result, Case3-Type1 scenario is thought to be the best one. From the test result with Case3-Type1 when the concentrated discharge was never done, 0.07 mg/L of BOD concentration was increased at the lower stream where Yeoungbon B point (Haksan Bridge) is but the water improvement effect of is thought to have been done at the area of water deterioration.
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KEYWORD
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Dispersed discharge, Improvement effect of water quality, Nonstructural extinction (isolation) of ecology, Water quality model
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