• 상하수도학회지
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• 제23권5호
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• pp.647-654
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• 2009

Since the end of the 1990s, sewer pipe improvement works have been going on: most septic tanks have been thrown away and discarded. These discarded septic tanks amounts up to 370,000 based on the project plan 2005-2008: it is a serious squander of nation's resources, a contaminating means that buries toxins under soil, and a cause of a expensive waste. Research on recycling of discarded septic tank as a new resource is in urgent need. This research suggests plans to recycle discarded septic tank as a rainwater management facility, solutions to water cycle recovery in the limelight, and economic analysis of the plan. In the case of a recycling discarded septic tank as a rainwater management facility will socially benefit to support economical adequacy, discard cost saving of septic tank and water supply and sewage cost reduction will come out. Consequently a rainwater management facility converted from a discarded septic tank leads to decentralization of the rainwater management system, which anticipates a positive effect on recovery of urban water cycle.

• 한국기후변화학회지
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• 제9권4호
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• pp.319-324
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• 2018

Due to climate change, water shortages and water-related disasters will be serious. Since the damage and frequency of drought are increasing, the importance of water resource management technology is increasing. In this study, we analyzed the amount of greenhouse gas and the environmental impact caused by the production and operation system technologies of movable weir among various water resource management technologies. The research subjects were air inflatable rubber dams widely used in rivers and upright type rubber dams, which are an improvement on the existing rubber type. Each type of dam was studied at sizes of $1,500H{\times}10,000L\;mm$ and $3,000H{\times}20,000L\;mm$, and the two types and two sizes were compared and analyzed. Using life cycle assessment, we examined the environmental impacts using the amount of electricity required for operation and the discretionary amount required for production. In the '$1,500H{\times}10,000L$' dams, the global warming indexes were $9.35E+04kg\;CO_2-eq$. for upright type and $7.36E+04kg\;CO_2-eq$. for inflatable type. At size of '$3,000H{\times}20,000L$' the global warming indexes were $9.09E+05kg\;CO_2-eq$. for upright type and $1.07E+06kg\;CO_2-eq$. for inflatable type. Analysis of the life cycle environmental impact showed that the environmental impact of the air inflatable rubber dam was reduced by 39.8% at '$1,500H{\times}10,000L$' compared to the larger size. At the larger '$3,000H{\times}20,000L$' size, the upright dam showed a 10.1% smaller impact than the air inflatable rubber dam. Selection of water resource management system should consider climate change, not only management purpose and cost. Additional studies and improvements on rubber dam systems should be made.

• 한국습지학회지
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• 제21권4호
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• pp.267-280
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• 2019

적응관리는 불확실성이 존재하는 상황에서 자연자원을 관리하는 최적의 관리방법들 중의 하나이다. 여러 가지 한계에도 불구하고, 자연자원 관리에 대한 정책 및 계획수립에 있어 적응관리방법 활용의 필요성은 국제적으로 증가하고 있다. 그러나 우리나라의 자연자원 관리분야에서는 적응관리의 활용사례가 매우 드물다. 본 연구에서는 적응관리의 정의, 절차, 장애요인들과 적용시 고려할 점에 대한 고찰 및 적응관리방법에서 필수적인 요소인 생태모델에 대하여 리뷰하였다. 또한, 적응관리의 도입이 권장되는 바다숲, 연안습지 및 수산자원관리분야에 적응관리방법을 적용할 경우 고려해야 할 사항들에 대하여도 고찰하였다.

• 환경영향평가
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• 제25권3호
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• pp.222-232
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• 2016

물발자국은 인간의 활동을 통해 소비되는 직접수와 간접수의 총사용량을 산정함으로써 지속가능한 물이용을 유도하기 위한 효과적 수단으로 활용되고 있다. 본 연구는 서울시의 물이용 관리와 관련한 계획들의 문제점 분석을 통해 물발자국의 도입가능성을 분석하고 장단기적인 측면에서 도입 및 활용방안을 제시하고자 하였다. 또한 서울시 25개 자치구를 대상으로 시뮬레이션을 통해 청색 및 회색 물발자국을 산정하고, 지역별 물발자국의 차이점 분석과 이를 바탕으로 물발자국을 줄이기 위한 대안들을 모색하였다. 물발자국 측면에서의 서울시 물환경시스템에 대한 분석은 크게 청색물발자국과 회색물발자국으로 나누어 수행하였다. 개인이나 공동체가 제품이나 서비스를 생산 소비하기 위해 필요한 지표수와 지하수의 양을 의미하는 청색물발자국을 분석하기 위해서 서울시의 각 행정구역별 지하수의 사용량과 생활용수의 사용량을 합산하여 추정하였다. 각 행정구역별 청색물발자국을 인구수와 세대수 비율로 확인해 본 결과 중구, 종로구 강남구, 용산구, 서초구 등의 순으로 높게 나타났다. 회색물발자국은 각 행정구역별 BOD기준의 오 폐수발생부하량을 배출기준 수질(BOD기준 3.5ppm)로 정화하여 배출할 때 사용되는 물의 양을 추론하여 산출하였다. 각 행정구역별 회색물발자국을 인구수와 세대수 비율로 확인해 본 결과 중구, 종로구 강남구, 용산구, 서초구, 영등포구 등의 순으로 높게 나타났다. 본 연구 결과는 물관리 있어 공급중심의 양적 관리 정책의 한계를 극복하기 위한 일환으로 물발자국의 개념 및 방법의 도입을 제안하였으며 이는 환경적 경제적 사회적으로 보다 탄력적이고 지속가능한 물관리 정책을 모색하는데 중요한 기초자료가 될 것으로 기대된다.

• 농촌계획
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• 제28권3호
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• pp.49-59
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• 2022

Recently, Korea aimed to increase water use efficiency by implementing integrated management according to the water management unification policy. Considering the enormous use of water resources in the agricultural sector, it is necessary to efficiently conserve water in terms of demand management by intensifying the stakeholders' involvement and awareness campaigns. The existing agricultural water management system in Korea is based on a top-down approach by which the government agencies directly plan budgets and policies to be enforced on and implemented by farmers, with little to no involvement of farmers in the decision-making process. However, this process has hindered the desired water resources management and the water conservation goal at the field level. Moreover, the limited research on water governance operations focusing on agricultural water creates a knowledge gap, particularly in Korea. Thus, it is necessary to investigate water governance cases with successful implementations in agricultural and rural areas to identify the factors applicable to domestic governance in Korea. In addition, a more systematic governance model should be established by identifying the subjectivity of the stakeholders' involvement in agricultural water governance. Therefore, this study proposed a new bottom-up model for agricultural water governance, which aims to raise the problem of autonomous water governance while promoting stakeholders' voluntary participation in agricultural water management and reflecting farmers' involvement in the decision-making process. Moreover, if agricultural water governance is expanded nationwide by reflecting agricultural and water resource policies in the future, it is believed that positive effects can be achieved in increasing utilization efficiency and securing sustantiality through agricultural water saving.

• International Journal of Computer Science & Network Security
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• 제24권4호
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• pp.147-154
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• 2024

The continuous increase in urban population due to migration of mases from rural areas to big cities has set urban water supply under serious stress. Urban water resources face scarcity of available water quantity, which ultimately effects the water supply. It is high time to address this challenging problem by taking appropriate measures for the improvement of water utility services linked with better understanding of demand side management (DSM), which leads to an effective state of water supply governance. We propose a dynamic framework for preventive DSM that results in optimization of water resource management. This paper uses Agent Based Modeling (ABM) with Digital Twin (DT) to model water consumption behavior of a population and consequently forecast water demand. DT creates a digital clone of the system using physical model, sensors, and data analytics to integrate multi-physical quantities. By doing so, the proposed model replicates the physical settings to perform the remote monitoring and controlling jobs on the digital format, whilst offering support in decision making to the relevant authorities.

• 한국지리정보학회지
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• 제15권4호
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• pp.15-25
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• 2012

이 연구는 자동수위계가 설치된 378개소 농업용저수지에 대하여 웹기반 실시간 농촌홍수관리시스템을 구축하기 위하여 이루어졌다. 농촌홍수관리시스템은 한국농어촌공사의 농촌용수종합정보시스템(Rural Agricultural Water Resource Information System, RAWRIS)과 연계 운영되는 시스템으로서 RAWRIS의 통합 데이터베이스에 구축 관리되는 일강우자료, 시강우자료, 자동수위측정자료를 실시간으로 수신하여 연계 활용하는 시스템이다. 이들 자료를 이용하여 강우사상이 발생되는 시점을 기준으로 해당 강우사상기간동안의 매시간 홍수분석을 수행함으로서 해당 저수지로의 홍수유입량의 변화양상을 파악할 수 있는 계산결과를 제공함과 동시에 수위증가와 계산방류량으로 인한 저수지 상 하류의 홍수위험도를 등급화 하여 화면에 표출함으로서 광역적인 홍수현황을 파악할 수 있도록 구성하였다. 더불어 기상청 기상특보와 예보자료로부터 해당저수지유역에 발생가능하다고 생각되는 강우량을 저수지 관리자가 직접 입력하여 분석할 수 있는 기능을 통해 댐 운영에 참고 될 수 있는 정보를 제공할 수 있게 하였다.

• Water Engineering Research
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• 제3권2호
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• pp.85-92
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• 2002

There has been continuous efforts to manage water resources for the required water quality criterion at river channel in Korea. However, we could obtain the partial improvement only for the point sources such as, waste waters from urban and factory site through the water quality management. Therefore, it is strongly needed that the best management practice throughout the river basin fur water quality management including non-point sources pollutant loads. This problem should be resolved by recognizing the non-point sources pollutant loads from the upstream river basin to the outlet of the basin depends on the landuse and soil type characteristics of the river basin using the computer simulation by a distributed model based on the detailed investigation and application of Geographic Information System (GIS). The purpose of this study is consisted of the three major distributions, which are the investigation of spread non-point sources pollutants throughout the river basin, development of the base maps to represent and interpret the input and outputs of the distributed simulation model, and prediction of non-point sources pollutant loads at the outlet of a up-stream river basin using Agricultural Non-Point Sources Model (AGNPS). For the validation purpose, the Seom-Jin River basin was selected with two flood events in 1998. The results of this application showed that the use of combined a distributed model and an application of GIS was very effective fur the best water resources and quality management practice throughout the river basin

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume II
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• pp.570-573
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• 2006

College GIS and remote sensing education usually consists of commercial software packages implementations in the classroom. Computer programming is quite important when college graduates work in private or public sectors relevant with GIS and remote sensing implementations. The objective of this paper was to develop a valley management system which implements GIS and remote sensing as the key components for education. The Valley Authority is entitled with water resource protection for sustainable drinking water supply of the second largest city in Taiwan. The test area consists of three different government agencies, Forest Service, EPA, and Water Resource Agency. Materials were provided by the Valley Authority in ArcGIS file format. MapObjects have made the GIS development process much easier. Remote sensing with image manipulation functions were provided by computer programming with Visual Baisc.NET and Visual C#.NET. Attributes inquiry are performed by these two computer languages as well. ArcGIS and ArcPad are also used for simple GIS manipulations of the test area. Comparison between DIY and commercial GIS can be made by college students. Functions provided by the developed valley management system depending on how many map layers have been used and what types of MapObjects components have been used. Computer programming experience is not essential but can be helpful for a college student. The whole process is a step-by-step sequence which college students can modify to depict their capability in GIS and remote sensing. The development process has gone through one semester, three hours every week in 18 weeks. College students enrolled in this class entitled with GIS showed remarkable progresses both in GIS and remote sensing.

• Water Engineering Research
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• 제5권3호
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• pp.147-156
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• 2004

Recently, the population growth, industrial and agricultural development are rapidly undergoing in the Lower Rio Grande Valley (LRGV) in Texas. The Lower Rio Grande Valley (LRGV) composed of the 4 counties and three of them are interesting for Non-point and point source pollutant modeling: Starr, Cameron, and Hidalgo. Especially, the LRGV is an intensively irrigation region, and Texas A&M University Agriculture Program and the New Mexico State University College of Agriculture applied irrigation district program (Guy Fipps and Craig Pope, 1998), projects in GIS and Hydrology based agricultural water management systems and assessment of prioritized protecting stream network, water quality and rehabilitation based on water saving potential in Rio Grande River. In the LRGV region, where point and non-point sources of pollution may be a big concern, because increasing fertilizers and pesticides use and population cause. This project objective seeks to determine the accumulation of non-point and point source and discuss the main impacts of agriculture and environmental concern with water quality related to pesticides, fertilizer, and nutrients within LRGV region. The GIS technique is widely used and developed for the assessment of non-point source pollution in LRGV region. This project shows the losses in kg/$km^2$/year of BOD (Biological Oxygen Demand), TN (total Nitrogen) and TP (total phosphorus) in the runoff from the surface of LRGV.