하수도로 사용되는 복개하천의 복원시 가용수량 예측
Estimation of Available Water for Daylighting of Covered Channels used as Sewage
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초록
This study examined the water quantity and quality of two covered channels that were previously rivers but are now used for sewage. The S channel exhibited daily variations in flow rate due to the inflow of sewage, with a cycle ranging from 43,000 m3/day to 62,000 m3/day. Similarly, the D channel had daily changes in flow rate due to sewage inflow, with a daily cycle ranging from 25,000 m3/day to 29,000 m3/day. The daily average flow rate in sunny days was 53,000 m3/day for the S channel and 28,000 m3/day for the D channel. An estimated 22% of water in the S channel and 57% of water in the D channel were sewage.The study also predicted the amount of usable water that could be used for river maintenance if all sewage were separately discharged. It was estimated that the S channel could provide about 41,000 m3/day of usable water, while the D channel could only provide about 12,000 m3/day. The minimum amount of water required for river maintenance to restore the open river and maintain its function as a river was estimated, revealing that the S channel has more available water than required, while the D channel has a smaller amount of available water than required. To address this, reducing the stream width or securing additional water supply sources for river maintenance may be necessary.
Abstract
This study examined the water quantity and quality of two covered channels that were previously rivers but are now used for sewage. The S channel exhibited daily variations in flow rate due to the inflow of sewage, with a cycle ranging from 43,000 m3/day to 62,000 m3/day. Similarly, the D channel had daily changes in flow rate due to sewage inflow, with a daily cycle ranging from 25,000 m3/day to 29,000 m3/day. The daily average flow rate in sunny days was 53,000 m3/day for the S channel and 28,000 m3/day for the D channel. An estimated 22% of water in the S channel and 57% of water in the D channel were sewage.The study also predicted the amount of usable water that could be used for river maintenance if all sewage were separately discharged. It was estimated that the S channel could provide about 41,000 m3/day of usable water, while the D channel could only provide about 12,000 m3/day. The minimum amount of water required for river maintenance to restore the open river and maintain its function as a river was estimated, revealing that the S channel has more available water than required, while the D channel has a smaller amount of available water than required. To address this, reducing the stream width or securing additional water supply sources for river maintenance may be necessary.
참고문헌 (11)
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