• KIEAE Journal
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• 제12권3호
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• pp.33-40
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• 2012

Since 2000 country region developmental policy has been to integrate not only the improvement of physical living environment but also various subjects on ecology, environment, scenery, local culture, and green tourism. This study has recently established a decentralized Rainwater Management plan in order to provide an hydrology cycle system to the eco-village being planned by Seocheon-gun as a part of the garden village development business promoted by the ministry of agriculture and forestry. Hydraulic conductivity of the subject area is measured at $10^{-7}{\sim}10^{-10}m/sec$, and a flowerbed-type rainwater Infiltration system capable of controlling a non-point pollution source that stems from the development-caused impermeable surface has been applied. In the case of rainwater flowing out from the main entrance way and parking lot within the complex being treated in the flowerbed-type rainwater infiltration system, natural purification effects via soil and plants as well as natural water cycling effects through evaportranspiration and infiltration are expected. The significance of this study, compared to conventional decentralized rainwater management being applied limited to the urban areas, is that it offers appropriate rainwater management planning based on the analysis of the current situation of the subject area. Decentralized Rainwater Management is a valuable measure both economically and ecologically that reduces the burdens on local underground water cultivation as well as rain water pipe lines or purification systems, and sewage pipes.

• 한국지하수토양환경학회지:지하수토양환경
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• 제17권6호
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• pp.1-8
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• 2012

This study is to suggest a few efficient ways of rainwater utilization, through monitoring and analyzing 143 rainwater storage systems and 110 artificial recharge systems, which are installed in the recommended facilities by law, among the rainwater harvesting systems in Jeju Island. In the case that catchment facilities are damaged, rainwater could be contaminated by leaves and debris so that the rates of rainwater usages come to be lower. It is possible that contaminated rainwater could contaminate artificial recharge wells or rainwater discharging out of the rainwater harvesting system could result in flood and damage for the downgradient area. For maintaining high quality of rainwater and increasing rainwater utilization rate, it is necessary to install screening facilities and purification plant functioning precipitation and filtration. Also, in order to efficiently preclude the overflowing rainwater exceeding storage capacity, it is recommended to associate rainwater storage tanks with artificial recharge well or infiltration trench facilities.

• 대한토목학회논문집
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• 제34권5호
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• pp.1477-1488
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• 2014

도심지 불투수성 포장의 증가로 지하수위 저하, 생활용수 부족 등의 물과 관련된 다양한 환경문제가 점차 심화되고 있으며, 이를 해결하기 위해 빗물 저류조가 설치되어지고 있다. 빗물 저류조는 지반 저류층에 강우 유출수를 저장하여 향후 갈수기에 이용할 수 있어 도심지의 원활한 물순환에 도움이 된다. 그러나 도심지의 초기 강우는 다량의 비점오염물질을 포함하고 있으므로, 초기 강우를 빗물 저류조에 저류하기 전에 빗물에 포함된 오염물질을 정화하기 위한 시스템이 필요하다. 본 연구에서는 초기 강우의 오염물질 정화를 위해 경제성과 비점오염물질 제거효율 측면에서 우수한 토양여과기술을 적용한 빗물 저류조의 전처리시설인 모래 여과층에 대한 정화효율 및 적용성을 실내 시험과 현장 시험을 통해 평가하였다. 실내 시험은 $20cm{\times}30cm{\times}60cm$의 규격으로 제작된 챔버에 3종류의 각기 다른 모래 여과층을 조성한 후 인공 강우를 유입하는 과정으로 진행되었으며, 유출된 오염수의 TSS (총 부유물질)와 COD (화학적 산소요구량)를 측정하여 모래 여과층의 정화효율을 평가하였다. 또한 폐색 현상으로 인한 모래 여과층의 투수계수 변화를 간접적으로 평가하였다. 실내 시험을 통하여 비점오염물질 정화에 적합한 여과층을 제시하였으며, 이를 현장 빗물 저류조에 시험 시공하여 선정된 여과층의 적용성을 검증하였다.

• 한국지반공학회논문집
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• 제30권6호
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• pp.23-39
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• 2014

인공 빗물 저류조는 도심지에 설치되어 빗물의 재활용이 가능하도록 한 친환경 우수유출 저감시설이나 지면에 내린 빗물을 직접 이용하기 위해서는 도심지의 초기강우에 포함된 고농도의 비점오염원을 정화할 수 있는 시설이 수반되어야 한다. 본 논문에서는 인공 빗물 저류조에 적용할 수 있는 비점오염원 정화시설로서 경제성과 정화효율이 우수한 토양여과시설을 채택하여 실제 비점오염물질에 대한 모래 정화층의 입도분포에 따른 폐색특성을 연구하였다. 이를 위해 일련의 실내 챔버시험을 수행하고 폐색이론에 의한 비점오염원 제거 예측 모델을 제시하였다. 우선, 실내 챔버시험은 미세입자로 구성된 점토와 서울시내 도로에서 채집된 실제 비점오염원으로 제조된 인공 오염수를 이용하여, 5종류의 다양한 입도로 구성된 모래 정화층을 대상으로 수행되었다. 실내 챔버시험에서는 모래 정화층에 유입 및 유출된 인공 오염수의 TSS(총 부유물질)와 COD(화학적 산소 요구량)를 측정하여 오염입자의 크기에 따른 모래 정화층의 정화효율을 평가하였고, 정화층 간극에 폐색되는 비점오염입자의 누적무게를 산출하였다. 다음으로, 모래 정화층의 폐색특성을 이론적으로 규명하기 위해 비점오염원 제거 예측모델을 모래 정화층의 입도와 구성에 따른 특성과 투수계수 및 간극률의 변화 조건을 고려하여 제시하였다. 실내 챔버시험과 예측 모델로부터 산정한 모래 정화층에 폐색된 입자의 누적무게를 비교하여 폐색특성 지표인 Lumped parameter ${\theta}$를 추정하였으며, ${\theta}$는 모래 정화층에 폐색되는 오염입자의 양에 큰 영향을 주는 것을 확인하였다. 모래 정화층의 폐색 예측모델로부터 현장 인공 빗물 저류조에 적합한 최적의 비점오염 제거 시스템으로 유효입경 1.49mm(상부)와 유효입경 0.93mm(하부)의 모래로 구성된 이중 정화층을 제시하였다.

• 농촌계획
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• 제21권4호
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• pp.45-53
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• 2015

Agriculture, rural landscapes are accompanied by a variety of environmental issues. Therefore, it is necessary to study on biodiversity and ecosystem services. Horticulture complex is low groundwater recharge function, it can be evaluated as a facility that biodiversity is impaired. The ecosystem services in agricultural landscapes were obtained 19 kinds of functions. Experts survey Groundwater recharge function (4.13) teeth chapter higher, Water storage (4.05), Amphibian & Reptile habitat (3.96), Aquatic insect habitat (3.92), Flood control (3.87), Water purification (3.86), Avian habitat (3.76 ), Creating landscape (3.74), Vegetation diversity (3.71), Experience, Education (3.69), Biological control (3.48), Fishery habitat (3.42), Climate regulation (3.30), Mammal habitat (3.30), Air quality regulation (3.25 ), Mainenance of genetic diversity (3.25), were analyzed in order Rest area (3.14). Improving capabilities in the Detention Pond, Wetland, Green space, Corridor, Non-Chemical, Program development, Green spaces, Rainwater storage facilities, Water cycle system, Surface water storage facilities, Infiltration trench, Water purification facilities, Permeable pavement. Environmentally friendly, and to contribute to sustainable agricultural development through ecological planning.

• 한국환경복원기술학회지
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• 제4권2호
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• pp.92-100
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• 2001

The purpose of this study is to develop a method to spread out the ecological ponds in urban areas more effectively. It is urgent to supply the ecological ponds in more broad scope to ensure the water space in urban areas which has been dried out. It is necessary to formulate a plan for improving the amenity in the cities through creation a biotop in swampy land by building rainfall ponds. Thus, a model of the ecological pond in this study has been developed by reviewing the related researches which provide the theoretical basis and by considering the characteristics of nature for a naturally approached pond. This study has produced a ecological pond model in order to introduce and spread out damp biotop. Ecological aspects have been mainly considered in designing and building the pond model. This model consists of areas for emerged plants and bog plants and has its advantage in providing animals and insects with habitats and shelters. In addition, the model includes areas for emerged plants, which are very effective in purification of the rainfall from the rooftop. After the construction of the pond, the plants were planted according to the plan, and the infiltration trench was installed beside the pond to drain out the overflow of the pond. The result of this research has shown the possibility of supplying the ecological pond in small parks and in schools of the city in an easy way. Through the application of this pond system, the water cycle and the ecosystem in urban areas will be improved.