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RISS 인기검색어
- 검색키워드
- 저자 : 유명진 ( Ki Woong Bang (검색결과 2 건)
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권순국,유명진,방기웅,고덕구,Kwun, Soon Kuk,Yu, Myong Jin,Bang, Ki Woong,Koh, Deuk Koo 대한토목학회 1990 대한토목학회논문집 Vol.10 No.4
본 연구의 목적은 담수호에 적합한 Multiple Box모형을 개발, 적용하여 장기 수질예측을 할 수 있도록 하므로써 담수호에서의 수질관리 방안을 제시하는데 있다. 모형은 수문 부모형과 수질 부모형으로 구성되어 있으며, 수질 부모형에서 고려한 수질항목은 수온, Chlorophyll-a, BOD, DO, N과 P 등이었다. 본 모형의 적용은 아산호를 대상으로 시행하였으며, 호의 수문환경조건을 고려하여 호를 상층은 2개의 Box, 하층은 1개의 Box 등 총 3개의 box로 분할하였다. 수질예측모형을 아산호에 적용한 결과 대체로 장기적 수질변화추세를 잘 나타내고 있는 것으로 평가되었다. 개발된 수질모형의 미래의 오염부하량을 입력하여 수질개선 방안들을 비교한 결과, Chlorophyll-a의 경우 무린세제의 도입이, BOD와 T-N의 경우 고도하수처리시, T-P의 경우 축산폐수의 저감시 각각 효과가 큰 것으로 평가되었다. The purpose of this study was development and application of a multiple box model for long term prediction and control of water quality in estuary reservoir. The model was composed of one main model and two sub models for hydrology and water quality. Water quality constituents for modeling were temperature, chlorophyll-a, BOD, DO, N, and P. The model had been applied to Asan reservoir, and the reservoir had been devided into three boxes-two boxes for a upper layer and one box for a lower layer-to represent stratification. The model appeared satisfactory in representing long term trend of water quality variations by comparing measured and simulated results. According to the application of the model to study alternatives for water quality improvement to deal with increase in future pollution load, use of non-phosphorous detergent for chlorophyll-a, advanced sewage treatment for BOD and T-N, reduction of livestock waste for T-P were evaluated as more effective ones than any others, respectively.
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방기웅,이준호,유명진 ( Ki Woong Bang,Jun Ho Lee,Myong Jin Yu ) 한국물환경학회 1997 한국물환경학회지 Vol.13 No.1
Combined sewer overflows (CSOs) are known for their overflow of untreated wastewater during storm events, therefore CSOs are composed of sewage and surface runoff wastewater, typically from urbanized areas. This study was performed to characterize the quantity and quality of the CSOs from urban watershed located in Hungduk-gu, Cheongju city and Dong-gu, Taejon city, respectively. Quantity and quality of CSOs were surveyed for two years and concentrations of biochemical oxygen demand (BOD), chemical oxygen demand (COD), suspended solids (SS), total nitrogen (TN), total phosphorus (TP) and n-Hexane extracts were measured. The runoff loading rate of BOD, COD, SS, TN, TP and n-Hexane extracts were estimated to be 0.189㎏/ha/㎜, 0.692㎏/ha/㎜, 2.540㎏/ha/㎜, 0.032㎏/ha/㎜, 0.017㎏/ha/㎜, 0.771㎏/ha/㎜, respectively, during the wet weather. Based on the pollutant runoff unit load and washoff concept, ILLUDAS-POLL model (Illinois Urban Drainage Area System and pollutograph model) was developed. The Illinois Urban Drainage Area Simulator (ILLUDAS) has been modified for water quality model (named POLL) has been added to it. Parameter, coefficients adjustments for model calibration executions with continuous 5-minute rainfall record. From the results of model application, correlation coefficients between the measured and estimated concentrations were 0.53∼0.96 for BOD, 0.24∼0.91 for COD,0.32∼0.89 for SS, 0.55∼0.81 for TN, 0.47∼0.72 for TP, and 0.35∼0.95 for n-Hexane extracts respectively. It was concluded that ILLUDAS-POLL model is a useful tool in CSO`s pollutograph estimation with storm events for a small urban watershed.
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