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유역차원의 하수처리수 재이용 대안평가와 우선순위 결정과정에 관한 연구
정은성 ( Eun Sung Chung ),전상묵 ( Sang Mook Jun ),이진희 ( Jin Hee Lee ),안종호 ( Jong Ho Ahn ) 한국물환경학회 2013 한국물환경학회지 Vol.29 No.2
This study aims to show the feasibility of wasterwater reuse through hydrological analysis and propose a framework for planning using multi criteria decision making technique. Ten alternatives of wastewater reuse(BOD:3.0 mg/L &4.7 mg/L) and two references in the urban watershed were considered and analyzed by using Hydrological Simulation Program in Fortran(HSPF). Though wastewater has a positive effect on water quantity, in may degrade the water quality due to the high discharge concentration. This study showed that wastewater reuse can be a great alternative for the rehabilitation of distorted water cycle, if the quality is improved up to the natural streamflow and the quantity is increased up to the instreamflow requirement. In addition, to determine the project priority, there criteria were compared: 1) impacts on water quantity and water quality, respectively, 2) consideration of present hydrologic vulnerabilities on water quantity and quality and not, and 3) social and economic considerations and not. From the performance values to all criteria, the specific ranking can be derived and the feasibility of each wastewater reuse project can be checked with the comparison of the existing facilities. As a result, DJ and DR were derived to become effective in any evaluation conditions while SS and WG were improper alternatives if various criteria were considered. The decision making for project prioritization must be careful with the consideration of various impacts of wastewater reuse because the evaluation of wastewater reuse alternative showed very different priorities for each criteria.
기후변화에 따른 미래 유출 및 수질 모의를 위한 SWAT 모형의 적용
정은성(Chung, Eun-Sung),김상욱(Kim Sang Ug),김형배(Kim Hyeong Bae) 강원대학교 산업기술연구소 2016 産業技術硏究 Vol.36 No.1
In the face of increasing impact of climate change due to human activities, there has been an urgent need to resolve the problem in water resources planning management and environmental engineering. Therefore SWAT model was used to identify the impacts and change in hydrological cycle and environmental aspect. The most important step for the development of SWAT model is calibration procedure. Therefore, SWAT-CUP automatic calibration module was used to find some optimal parameters in SWAT model. After calibration in the cheongmicheon basin, SWAT model is used for the projected precipitation and temperature of RCP 4.5 and 8.5 climate change scenarios in AR5. The quantity and quality using SWAT model from 2014 to 2100 were identified. Finally, this study can provide the reasonable finding on impact by climate change.