저층수 배출 고무보와 가동보의 하천수질 비교 = Comparison of Water Quality in Stream by Downstream Outlet Rubber Weir and Movable Weir

다국어 초록 (Multilingual Abstract)

For the purpose of taking water from river and intake channel, many weirs and structures have been installed across water flow and such structures have been used for temporally holding of water. However, many problems such as stagnation of river flow, sediment deposition and water quality worsening have been ocurred by these structures.
In this study, we conducted comparative analysis for quality of water from rubber weir equipped with bottom water emissions device and operational weir without it. Results show that rubber weir equipped with bottom water emissions device has been more effective than operational weir without it on water quality improvement surface waters by BOD 8.9∼36.1%, COD 12.3~18.9%, SS 0∼22.1%, T-N 0∼41%, T-P 0∼37% and bottom waters by BOD 10.6∼24.4%, COD 2.6∼16.7%, SS 16.7∼49.0%, T-N 13∼37%, T-P 20∼38 at all point.

참고문헌 (Reference)

1 Jin-Hong Kim, "Hydraulic Characteristics and Improvement Effect of Water Quality by the Type of Overflow Weir" Korean Society of Civil Engineers 2751-2754, 2003

2 Jin-Hong Kim, "Hydraulic Analysis of Air Entrainment by Weir Types" Korea Water Resources Association 971-984, 2003

3 Suck-Hwan Jang, "Efficient production, installation, and water purification methods of rubber weir" Korea Water Resources Association 505-510, 2002