도시 소하천에서 수질현황 및 오염부하 특성에 관한 연구 = Characteristics of water quality and pollutants loading in small urban stream

다국어 초록 (Multilingual Abstract)

This study was performed to analyze the water quality from small urban stream and to restore the stream and the take to the amenity environment by purifying urban stream. The amenity environment of the urban stream influences on ecosystem and the water quality of the lake. In this study sampling sites were set for the Shingal stream, the Jigok stream and the sewages which flow in the Shingal stream.
The flow rate, pH, EC, concentration of DO, BOD, COD, NH_4-N, NO_2-N, NO_3-N, T-P, PO_4-P and Cl^- in stream were analyzed from April, 1995 to March,1996.
The results obtained from these investigations were as follow;
The annual average pH was 7.63. Concentrations of SS, BOD, T-N and T-P were 10.6㎎/1, 3.42㎎/1, 8.58㎎/1 and 0.275㎎/1 at the upstream and 24.8㎎/1, 16.64㎎/1, 14.25㎎/and 0.88㎎/1 at the downstream, respectively.
It indicates that rapid contamination of water quality occurred during its flow from upstream downstream.
The suggested plans to improve the water quality of the Shingal stream and lake Shingal are as follows. ① Reduction of inflow loading with construction of wastewater treatment plant. ② Educate environmental consciousness for getting the reduction of municipal sewage inflow. ③ In the industrial area, reinforce wastewater emission control level with more strict requisitions. ④ Dredging of sediment for self-purification.