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한강상류 유역 수질보전에 관한 연구 ( 2 ) - 수질 Modeling 및 수질예측 -
허인량(In Ryang Huh),이건호(Geon Ho Yi),최지용(Ji Yong Choi),정의호(Ui Ho Jeong),이용석(Yong Seok Lee) 한국물환경학회 1999 한국물환경학회지 Vol.15 No.3
This study was performed to find out water quality characteristics and then to predict water quality of Pyongchang river and Juchon river, which are the major tributaries of the Han river, S. Korea. According to this study, BOD decay coefficient of the main stream of Pyongchang river was appeared to be 0.120∼0.250day^(-1), Juchon river 0.166∼0.225day^(-1) and the effect of BOD coefficient of K₃ was appeared to be higher than K₁. Based on survey data, BOD, Total nitrogen and Total Phosphrous calibration and verification result were in good agreement with measured value within mean coefficient variance(MSE) value, which were 6.0%, 3.4%, 13.6% and 6.3%, 9.0%, 16.3%, respectively. Sectional water quality predictions of the main stream of Pyongchang river are executed on the basis of the following cases 1) with sewage treatment of Pyongchang-eup 2) rain fall effect. As a result, BOD improvement rates of case 1) were appeared 10.6% in normal times, 25.6% in the dry season, and case 2) gave a serious impact on main stream.
허인량,박상균,최규열,정의호 ( In Ryang Huh,Sang Gyun Park,Kyu Yol Choi,Ui Ho Jeong ) 한국물환경학회 1995 한국물환경학회지 Vol.11 No.3
There are a number of recreational facilities and large scale cattle farms around upper region of Song Stream, and they have raised concerns about the possible pollution of the stream. This study evaluated the extent of pollution at two segments of the stream to provide water quality data for efficient pollution source control. Stream flows and water qualities for three other small streams that flow into the segment No.3 of the Song Stream were also analysed, and these data were used to estimate pollution loadings from each stream. The estimated production pollution loading to the Song Stream were 3,079㎏ for BOD, 1,691㎏ for total nitrogen, and 176㎏ for total phosphorus. Of the total loadings, wastes from the cattle farms accounted for 79.8% for BOD, 50.8% for T-N, and 89.1% for T-P.
허인량,최지용,김영진,정의호,Huh In-Ryang,Choi Ji-Yong,Kim Yeong-Jin,Jeong Ui-Ho 한국환경보건학회 2005 한국환경보건학회지 Vol.31 No.4
The effects of municipal sewage treatment plants on the water quality and effluent loading were investigated. BOD removal rates from Wonju, Hoengseong, and Hongcheon municipal sewage treatment plants were $88.9\%,\;80.6\%,\;90.7\%$ and T-P removal rates were $47.3\%,\;56.5\%,\;71.6\%,$ respectively. Also, BOD effluent leading from WonJu, Hoengseong, and Hongcheon treatment plants were 1,520 kg/day, 75 kg/day, 55 kg/day and T-P effluent loading were 203.9 kg/day, 4.2 kg/day, 4.0 kg/day, respectively. In terms of water quality distribution by distance of flow, BOD of the Seom river rapidly rose from 1.6 mg/l to 4.0 mg/l and T-P rose from 0.034 mg/l to 0.321 mg/l. Also BOD of the Hongcheon river showed a slowly rise from 1.1 mg/l to 1.4 mg/l and T-P from 0.011 mg/l to 0.026 mg/l. In conclusion, the effects of municipal sewage treatment plants on the water quality proved that T-P was higher than BOD. Consequently, in order to improve water quality, it is necessary to adopt an advanced sewage treatment system like nutrient removal.