• 한국건축시공학회지
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• 제6권3호
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• pp.91-97
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• 2006

Sewage facilities are positively necessary for environment improvement such as rainwater removal, sewage disposal, preservation of the qualify of water and health of the citizens in present-day. Meanwhile, a deterioration of the concrete sewer pipe is increasing rapidly due to the chemical and physical attack and especially biochemical attack that is to say biodeterioration. In this study, researches for the development of antibiotics and antimicrobial concrete were conducted to reduce biochemical corrosion of sewage concrete. First of all, desired performance, such as watertightness, antibiosis, homogeneity, workability and harmlessness, was proposed and performance of antibiotics and antimicrobial concrete were evaluated by them. And developed antimicrobial concrete was applied to actual construction field. As results of this study, dispersibility and antibiosis of liquid antibiotics superior to powdery antibiotics. Antibiosis of antimicrobial concrete was verified, and amount of elution of harmful and effective ingredients was little. In workability, setting time of antimicrobial concrete was delayed. Compressive strength and resistance to carbonation of antimicrobial concrete were more increased than ordinary concrete. Finally, as there were no problems in quality and construction progress of antimicrobial concrete produced in plant, applicability of antimicrobial concrete to actual construction field was verified.

• 한국조경학회지
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• 제35권3호
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• pp.37-49
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• 2007

This study investigated how external environmentally-friendly factors adopted to improve the quality of outdoor spaces have been designed and used in the construction of apartment complexes. The goal of this study is to determine what areas should be improved through environmentally-friendly ways to create natural outdoor spaces in apartment complexes and enhance their availability and usefulness. For this study, 21 environmentally-friendly factors were chosen and a checklist by specific item was prepared. This study examine how these items were applied to basic planning, detail design, and construction in 4 target areas. As a result, it was found that the development of environmentally-friendly residential areas was an ultimate goal of the project during basic planning and design. All target areas focused on developing an inner greens network, eco-pond, brook, and pedestrian track as well as the growth of a variety of plants. Some differences have been observed, however, in terms of method. Furthermore, due to economic and technological problems and poor construction site conditions, green walls/green roofs/pedestrian tracks/use of rainwater have not been properly promoted. These kinds of problems must be improved through the development of environmentally-friendly construction methods and materials, the expansion of natural grounds areas, economic support, a satisfactory repair and maintenance system.

• 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.

• 한국물환경학회지
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• 제36권1호
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• pp.29-35
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• 2020

To manage the non-point source pollution and restore the water circulation, many technologies including infiltration or reservoir systems were installed in the urban area. These facilities have many problems regarding maintenance as their operation period becomes lengthier. The purpose of this study was to estimate the optimal maintenance timing through a long-term load test on the infiltration trench as one of the low impact development techniques. An infiltration trench was installed in the demonstration test facility, and stormwater was manufactured by Manual on installation and operation of non-point pollution management facilities from the Ministry of Environment, Korea and entered into the infiltration trench. Particle size distribution (PSD), suspended solids (SS) removal efficiency, and infiltration rate change tests were performed on inflow and outflow water. In case of the PSD, the maximum particulate size in the outflow decreased from 64 ㎛ to 33 ㎛ as the operating duration elapsed. The SS removal efficiency improved from 97 % to 99 %. The infiltration rate changed from 0.113 L/sec to 0.015 L/sec during the operation duration. The maintenance timing was determined based on the stormwater runoff requirements with these changes in water quality and infiltration rate. The methodologies in this study could be used to estimate the timing of maintenance of other low impact development techniques.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2010년도 학술발표회
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• pp.1289-1292
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• 2010

용수부족 현상을 극복하기 위하여 댐건설 등의 생태계의 교란을 일으키는 방안을 배제하고 친생태적인 우수이용 등의 대체수자원을 개발하여 수자원 이용효율을 높이는 방안이 중요시 되고 있다. 이에 본 연구에서는 초기우수의 수질특성과 대기의 상태에 크게 영향을 미치는 수문학적 요인인 선행강우에 따른 수질변화에 대하여 분석하였다. 시료채취기간은 2001년 11월 22일에서 2003월 7월 06일까지 발생한 5mm 이상 호우사상을 대상으로 26회 에 걸쳐 초기 우수를 채집하여 분석을 실시하였으며, 이 중 봄 12회, 여름 7회, 가을 2회, 겨울 5회였다. 강우량 규모는 5~10mm인 호우가 5회, 10~20mm인 호우가 9회, 20mm~30mm인 호우가 5회, 30mm~50mm 인 호우가 2회, 50mm~100mm인 호우가 3회, 100mm~200mm인 호우가 2회였으며, 이를 채취하여 탁도, 증발잔유물, BOD, NH3-N, ${SO_4}^{-2}$, 전기 전도도 등의 항목을 측정하였다. 우수수질은 강우가 지속됨에 따라 급격히 개선되었으며, 이에 대한 상관관계도 높게 분석되었다.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2019년도 학술발표회
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• pp.209-209
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• 2019

저영향개발기법은 자연의 물순환에 미치는 영향을 최소로 하여 개발하는 것을 의마하며 개발로 인한 토지, 물, 대기에 미치는 영향을 경감시키기 위한 친생태적인 우수관리 혹은 토지개발기법을 의미한다. 국내에서는 2012년부터 가이드라인 및 매뉴얼을 제작하여 신도시개발 및 구도시의 환경사업에서 저영향개발기법을 적용하여 우수유출 저감 및 비점오염원 감소, 물순환 등을 환경적 이점이 나타나고 있다. 그러나 국내에서 적용하는 저영향개발기법은 미국 및 유럽의 시설구조를 적용하였으므로, 국내실정에 맞도록 저영향개발기법을 수정 보완하여 유출저감효과를 모의해보고자 한다. 강우발생시 고농도의 도시비점오염원은 차도 및 보도를 중심으로 유출되어 빗물받이를 거쳐 우수관으로 유입된다. 본 연구에서는 차도와 보도 사이의 식수대에 적용가능하도록 식생수로와 침투도랑을 연계한 식생도랑을 설치하여 도로에서 발생하는 고농도의 비점오염원을 저감하고자 하였다. 선행사례로 적용된 공공청사를 대상으로 모니터링 및 모델링을 실시하여 유출저감 및 비점오염원 저감효과를 검토하고, 식생도랑을 적용할 경우의 유출저감효과 및 비점오염저감효과와 비교검토하여 국내실정에 맞는 저영향개발기법을 개발하고자 한다.

• 환경위생공학
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• 제22권3호
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• pp.35-50
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• 2007

In order to investigate water pollution of spring, we carried out the experiments on mineral water, rainwater and surrounding soil of several springs collected in Incheon area from February to August in 2007. The results were as follows. 1. Soil : This study investigated the pH and organic matter contents in the soil which effect on microorganisms. The pH value was from 4.5 to 5.3 on average and organic matter contents ranged from 1.09% to 5.6% and E. coli, K. pneumoniae, S. faecalis and other microorganisms were isolated. 2. Natural mineral water : As the rainfall increased, the concentration of $No_3-N$, consumption of $KMnO_4$ and the number of microorganisms was increased while the other physicochemical items were not affected. The microorganism isolated in the natural mineral water were as follows: E. coli, K. oxytoca S. faecalis, S. facium, and so on from evacuation; E. agglomerans, E. amnigenus, E. cloacae, E. sakazakii and so on from the environments and evacuation. Detection of these microorganisms shows that the environment around the spring had been exposed to excrements of the warm blood animal. 3. Rain : The coliforms in the rain were the identical one detected from the mineral water and the soil. In conclusion the quality of natural mineral water is influenced by rain, resident bacteria of soil and surrounding environment. This study will be the basic data of characteristics of spring in Incheon area and also this result will give useful aids for the efficient control of spring.

• 한국환경과학회지
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• 제23권2호
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• pp.239-248
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• 2014

This study investigated the effects of soil depths and soil organic fertilizer application on the growth characteristics of Spiraea bumalda 'Gold Mound' in a extensive green roof system. The treatments were 3 soil depths (10, 15 and 25 cm) and 5 soil types in mixture of artificial soil and organic fertilizer. We measured plant height, leaf width, leaf length, number of flowers, visual quality and survival rate from March to October in 2011. The growing medium of 10 cm soil depth showed the highest plant growth in $A_1$ (amended soil 100%), and the lowest plant growth in $O_1A_4$ (organic fertilizer 20% + amended soil 80%) treatment. In case of 15 cm soil depth, Spiraea bumalda 'Gold Mound' showed a high leaf length and visual quality in $O_1A_2$(organic fertilizer 33% + amended soil 67%) treatment and high leaf width and number of flowers in $O_1$ (organic fertilizer 100%) treatment. $A_1$ treatment without organic fertilizer showed the lowest leaf length and poorest visual quality, and $O_1A_4$ treatment showed the lowest plant height and lowest number of flowers. At soil depth 25 cm, $O_1A_1$ (organic fertilizer 50% + amended soil 50%) treatment showed greater plant height, visual quality and number of flowers than other treatments. The leaf length and leaf width were more effective in $O_1$ treatment. $A_1$ treatment showed a relatively low leaf length, leaf width and visual quality. The higher the organic conditioner, the better the plant growth. And, survival rates of Spiraea bumalda 'Gold Mound' showed 92%, 88% and 76% at soil depths of 25 cm, 15 cm and 10 cm, respectively, in this a extensive green roof system. Therefore, the results showed that the growth of Spiraea bumalda 'Gold Mound' was affected by both soil quality and soil depth. Different optimal mixtures of organic fertilizer and amended soil were determined, depending upon soil depth.

• 한국환경농학회지
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• 제12권1호
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• pp.19-25
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• 1993

섬진강수계 농업용수의 경시적(經時的) 수질 변화 양상과 지천(支川)의 영향 등을 알아보기 위하여 1989년 4월부터 9월까지 월 1회씩 8개 지점의 수질을 분석한 결과를 요약하면 다음과 같다. 1. 섬진강 수계의 DO 농도는 조사기간중 전 수역에 걸쳐 $7.5{\sim}9.0ppm$의 범위를 나타냈다. 2. 월 별 $NO_3-N$ 함량은 6월 평균 3.86ppm까지 증가하였으나 그후 강우에 의한 희석으로 낮아졌다. 3. 섬진강 하류의 수질은 해수(海水)의 영향으로 하동지역에서 EC, $Cl^-$ 및 $SO_4^{2-}$ 함량이 높았으나 그 외의 지역에서는 농업용수 기준치보다 훨씬 양호한 상태였다. 4. 지천(支川)에 의한 섬진강 본류의 수질변화는 중류에서 오수천, 요천의 유입으로 동계와 고달지역에서 COD가 각각 4.48, 5.41ppm으로 높았으나 그 후 보성강, 황전천의 유입으로 압록과 구례지역에서 각각 3.66 및 3.84ppm으로 다시 낮아졌다. 5. 남원시 생활하수에 의한 요천의 오염은 COD가 0.97에서 7.10ppm, $NO_3-N$는 1.86에서 3.11ppm으로 높아졌다.

• 한국환경농학회지
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• 제19권2호
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• pp.110-115
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• 2000

동진강 수계의 수질현황을 파악하기 $1994{\sim}1998$년 까지 $4{\sim}9$월에 월 1회에 걸쳐 5개년간 조사한 결과를 요약하면 다음과 같다. 월별로는 빗물에 의한 희석효과로 7, 8월에 수질이 가장 양호하였으며, 4월이 다소 불량하였으나 수도생육 피해 한계농도에는 미치지 못하는 수준이었다. 지점별 수질현황은 생활하수 유입지인 정읍천과 지천의 폭이 좁은 원평천의 무기성분 함량이 높았으며 동진천 상류지역에서 가장 양호하였다. 연도별 현황은 '94년 이후 '95년까지는 수질이 악화되는 경향을 보였으나 '95년 이후로는 각 성분 함량이 낮았지는 등 점점 양호해지고 있으며 COD함량으로 볼 때 특히, 정읍천의 수질이 개선되고 있음을 알 수 있었다. 양이온과 음이온의 총당량온 4월에 가장 높았고 7, 8월에 가장 낮았으며 양이온/음이온의 당량비는 5월에 높았고 7월이 가장 낮았으며 지점에 따라서는 총당량은 정읍천, 원평천, 동진천 하류, 중류, 상류의 순위였으며 양이온/음이온 총당량 비율은 원평천이 상대적으로 작은 수치를 보였지만 지역간 큰 차이는 보이지 않았다. 수질 중 각 성분 상호간의 상관관계를 보면, 대개의 성분 상호간에 유의성이 높게 나타났으나, $NO_4\;^--N$는 대개의 성분과 유의성이 없었고, $PO_4\;^{3-}-P$도 COD, $NH_4\;^+-N$, $NO_3\;^--N$, $SO_4\;^{2-}$과는 유의성을 보이지 않았다.