• 한국물환경학회지
• /
• 제35권6호
• /
• pp.470-480
• /
• 2019

The Doam lake watershed was designated as a non-point pollution management area in 2007 to improve water quality based on watershed management implementation. There have been studies of non-point source reduction with respect to the watershed management impacting the pollutant transport of the reservoir. However, a little attention has been focused on the impact of water quality improvement by the management of the dam operation or the guidelines on the dam operation. In this study, the impact of in-lake management practices combined with watershed management is analyzed, and the appropriate guidelines on the operation of the dam are suggested. The integrated modeling system by coupling with the watershed model (HSPF) and reservoir water quality model (CE-QUAL-W2) was applied for analyzing the impact of water quality management practices. A scenario implemented with sedimentation basin and suspended matter barrier showed decrease in SS concentration up to 4.6%. The SS concentration increased in the scenarios adjusting withdrawal location from EL.673 m to the upper direction(EL.683 m and EL.688 m). The water quality was comparably high when the scenario implemented all in-lake practices with water intake at EL.673 m. However, there was improvement in water quality when the height of the water intake was moved to EL.688 m during the summer by preventing sediments inflow after the rainfall. Therefore, to manage water quality of the Doam lake, it is essential to control the water quality by modulating the height of water intake through consistent turbidity monitoring during rainfall.

• 한국농공학회:학술대회논문집
• /
• 한국농공학회 2001년도 학술발표회 발표논문집
• /
• pp.403-407
• /
• 2001

For the water quality management of stream and lake, it is important to estimate and control nonpoint source loading to meet the water quality standard. So, integrated watershed management is required. BASINS is a multipurpose environmental analysis system for use by regional, state, and local agencies in performing watershed and water quality based studies. BASINS was developed by the USEPA to facilitate examination of environmental information, to support analysis of environmental systems and to provide a framework for examining management alternatives. BASINS contains HSPF which is one of the watershed runoff model. By using HSPF, nonpoint source loading from upper stream watershed was estimated. As a result, the simulated runoff was in a good agreement with the observed data and indicated reasonable applicability for whole watershed.

• 수산해양교육연구
• /
• 제16권2호
• /
• pp.227-237
• /
• 2004

Recently development trends in information technology expand the activity boundaries for human living beyond coastal zones. These rapid changes of paradigm are stimulating scientists and strategists to be encouraged in making adequate model for marine geographic information system (MGIS) and their applications. Coastal zones are places which are affected by many factors, such as water quality, tide, wave, atmosphere, population, industry, etc. Therefore information related to the coast has to be integrated and analyzed for managing it efficiently. GIS-based Ocean Informatics is suited for those purposes and used in the study for establishing and managing coastal geographic and environmental information system. This paper reviews the properties of ocean and coastal spaces, then defines some MGIS related terminologies for clarifying the scope of MGIS boundaries. In this study, coastal geographic information is established by digital geographic information and digital terrain information. Digital coast chart having information on digital chart and map can merge and analyze various coastal information and can be a useful tool for the coastal integrated management.

• Ecology and Resilient Infrastructure
• /
• 제3권4호
• /
• pp.247-255
• /
• 2016

강우 시 표면 유출에 의한 비점오염물질의 하천 유입은 도시 하천 관리에 부정적인 영향을 미치며 특히 강우 초기의 수질농도가 매우 높은 것으로 알려져 있다. 본 연구에서는 하천의 제외지 또는 유수지 등의 공간을 활용하여 침강 및 여과작용을 이용하여 최소한의 에너지 및 비용을 이용하여 오염물질을 정화시키면서 하천의 수질 및 수량 관리에 긍정적인 작용을 할 수 있는 장치와 시스템을 개발하고자 하였다. 빗물 자동 모니터링 시스템을 이용하여 초기 우수에 대한 유량 및 수질을 파악하였고 이를 토대로 처리 시스템의 설계 기준을 확립하고자 하였다. 초기우수 제어 장치는 침전 장치만으로도 총부유물질 (TSS) 84 - 95%, 총질소 (TN) 31 - 46%, 총인 (TP) 42 - 86%의 제거 효율이 나타났다. 또한 일기 예보를 통해 강우에 의한 유량 및 수질을 예측하고 처리장치의 상태 및 자동 모니터링시스템과 연계하여 시설을 종합적으로 관리할 수 있는 강우 유출 종합관리 시스템 ISTORMS (Integrated Stormwater Runoff Management System)를 개발하였다. 본 연구 결과는 도시 하천의 수질 및 유량 환경개선에 효율적으로 적용될 수 있을 것으로 기대된다.

• 환경영향평가
• /
• 제7권2호
• /
• pp.65-70
• /
• 1998

ArcView와 FEMWASP 모형을 이용하여 영월유역의 현재 및 장래의 환경질을 해석하기 위한 통합적인 환경영향평가 도구를 개발하였다. 모든 입력자료와 계산 결과는 ArcView상에서 준비되어 도시되었다. ArcView내의 Avenue의 "system.execute" 명령어를 사용하여 FEMWASP과 ArcView를 통합하였다. 모델링 결과에 의하면 장래 영월호의 수질은 부영양화 상태에 이를 것으로 판단되었다. 개발된 시스템은 상수원수의 수질관리 분야의 정책의 계획이나 규제 방안을 결정하는 데 적용될 수 있을 것이다.

• 한국농공학회:학술대회논문집
• /
• 한국농공학회 2001년도 학술발표회 발표논문집
• /
• pp.399-402
• /
• 2001

After the legal foundation for the Total Load Control System (TLCS) process is embedded in integrated water management counterplan for 4 major river basins (1998), Kyunggido Kwangju City prepared the implementation plan of TLCS at first time. There is little difference between TLCS and TMDL(Total Daily Maxium Loading; U.S.A). TMDL is applied only when mandatory effluent limitations are not stringent enough to attain any water quality standard. But object of TLCS not only attain water quality standard at distributed watershed but also consider development of area at non-distributed watershed. For applying of systematic and consistent TLCS, we need to establish a system integrated watershed and point source, non-point source and assessed massive database easily. Now we are study on applicable possibility of BASINS on Korea, we think that BASINS's tool and many models are more easily apply to TLCS, so we recommend TLCS will be applied using BASINS.

• 한국조리학회지
• /
• 제9권4호
• /
• pp.54-68
• /
• 2003

This study aims at efficiency of kitchen management by adoption of a systematic central kitchen and conversion of conventional kitchen to convenience kitchen at ' H ' restaurant. First, integrated menu control of banquet buffet functions became more competitive with quality menu and eventually brought about guests satisfaction. Second, systematic central kitchen made possible standardization and mass production through simplified production line. Efficiency through quick service and shortened preparation time was realized, and food materials were recycled effectively at the same time. Integrated ordering lowered purchasing price and built an efficient cost control system. Third, conversion of conventional kitchen to convenience kitchen and strengthened central kitchen system facilitated agreeable work conditions and optimal work flow with butcher's and even sauce making utensils. Fourth, integrated supply system of buffet menu and sauce from western restaurants saved about 520 million won of labor costs. Last, one integrated kitchen out of two was easier in sanitation control with pleasant restaurant space. Sharing kitchen facilities and equipments also saved about 30% of maintenance fee. Power, water, and gas were also saved and eventually curtailed overall expenses.

• 한국환경보건학회지
• /
• 제28권2호
• /
• pp.11-22
• /
• 2002

This study analyzes the river system and water quality conditions of Bukchun in order to establish a basic plan for Preparing a natural learning and experimental area of environmental ecosystem in Bukchun, Gyeongju. It also tries to establish an integrated plan for water management of Bukchun stream based on water contaminants. In addition, after analysing the water quality at 13 points during the non-rainy season, the effluent of municipal wastewater was of relatively better quality with I ~ II grade, below the water quality standard of the river, except in points near Samsung apartments. However, analysing the Hyeongsangang and the effluent of Bomunho and Duckdongdam in rainy season, the water quality was II ~ III grade according to environmental standard. The water Quality of those samples was strongly dependent of non-point source.

• 환경영향평가
• /
• 제26권5호
• /
• pp.331-343
• /
• 2017

본 연구는 수질관리 측면에서 주요한 여건 변화 즉 환경오염시설의 통합관리의 도입 시행에 유의하여 수질분야 환경영향평가 개선방안을 모색하였다. 이를 위해 먼저 환경영향평가시 적용되는 배출허용기준, 방류수수질기준, 수질오염총량관리, 수질보전을 위한 토지이용규제를 고찰하였다. 그리고 환경오염시설의 통합관리에 따라 도입된 최대배출기준, 허가배출기준, 한계배출기준 등을 고찰한 후, 최적가용기법과 미국의 최적가용기법 및 관련 제어기술과 비교하며, 수질분야 환경영향평가와 환경오염시설의 통합관리를 비교하였다. 수질분야 환경영향평가 개선방안으로 첫째 영향예측과 평가에 배출영향분석기법과 허가배출기준설정의 반영, 둘째 협의기준에 허가배출기준의 반영으로 강화된 농도규제와 대상 수질항목이 확대된 수질오염 총량관리의 구현, 셋째 저감방안에 통합관리사업장의 배출원 성격과 수질오염물질 특성에 따른 최적가용기법의 다양한 운영, 넷째 저감방안에 영양염류제어를 위한 질산염취약지구와 같은 토지이용규제의 도입, 다섯째 환경영향평가서 수질분야 항목과 토지이용분야 항목간의 연계성 강화 등을 제시하였다.

• Spatial Information Research
• /
• 제10권2호
• /
• pp.289-299
• /
• 2002

최근 환경문제에 대한 관심이 많아지고 그 중요성이 부각되면서 관련 기관이 요구하는 정보량은 증가하고 있으며, 수요 또한 급증하고 있다. 오염총량제 실시를 앞두고 환경 관련 정보를 효율적이고 체계적으로 관리할 수 있는 정보관리체계가 필요하게 되었고, 특히, 도형자료에 의하여 관련정보를 효율적으로 관리, 분석할 수 있는 GIS의 개발과 적용이 세계각국을 비롯한 국내의 정부기관, 개인기업체, 관련학술분야에서 활발히 진행되고 있으며, 하천수질분야의 적용성이 인정되고 있다. 본 연구에서는 GIS를 이용하여 행정구역별, 유역별 오염부하량을 산정하고, 수질 예측 모델로서 국내 많은 지역에서 적용된바 있는 QUAL2E 모델을 GIS에 유기적으로 연계시켜 모델을 구동시키며 그 결과를 시각적으로 처리함으로써 오염부하량 산정으로부터 모의 결과를 시각화하는 일련의 과정을 통합하였다. 특히 GIS에 수질모델을 연계시킴으로써 기존연구에서는 미진했던 수질예측이 가능한 하천수질관리시스템을 구축하였으며 그 활용방법을 제시하였다.