• 제목/요약/키워드: Soil environment

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비위생 사용종료매립장의 심도별 토양오염도 분석 (Analysis of Soil Contamination with Depth in Non-sanitary Closed Waste Landfill)

  • 오영인;김관호;이동건;조숙희;박은숙
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2010년도 추계 학술발표회
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    • pp.1217-1224
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    • 2010
  • These days, the maintenance of closed waste landfill come to the fore social problem such as legal maintenance period, after closed maintenance deposits, stability evaluation guides and environmental survey for closed landfill management. Therefore the many non-sanitary closed waste landfill has been removed by selection and transfer to sanitary landfill and incineration. When the remove the non-sanitary landfill, the pollution level of bottom soil was investigated by related government law. In this case study, the soil contamination survey was performed to evaluate the pollution level of non-sanitary closed landfill bottom soil. Based on this study, the pollution level of studied non-sanitary landfill bottom soil was content with related government law for third area(factory, parking lot, gas station, road, railroad use etc.).

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토양.지하수오염원 분류체계 구축방안: 2. 분류체계 구축 및 속성자료 활용방안 (Building a Classification Scheme of Soil and Groundwater Contamination Sources in Korea: 2. Construction of Classification System and Applications of Attribute Data)

  • 안정이;신경희;황상일
    • 한국지하수토양환경학회지:지하수토양환경
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    • 제15권6호
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    • pp.122-127
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    • 2010
  • Constructing the national inventory that can be used as a tool to identify and assess existing or potential contamination is necessary for efficiently managing the soil and groundwater contamination. In order to start this construction, the first step is how we define and classify potential contamination sources of soil and groundwater. After selecting the basic classification model of contamination sources from developed countries, we suggested the classification and list of the potential contamination sources of soil and groundwater which are appropriate for specific conditions of South Korea. In addition, we investigated several databases to confirm the existence of available data sources and then examined established attribute data through chemical accident response information system (CARIS) and water information system (WIS) in National Institute of Environmental Research and mine geographic information system (MGIS) in Mine Reclamation Corporation. All sorts of attribute data in the existing databases can be utilized as significant assessment factors for determining the management priority of potential contamination sources in the future. Therefore, it is required the expanded investigation of additional database sources and the continual modification so that the classification system of potential contamination sources can be improved.

사고 누출 화학물질의 지하수 및 토양 환경 내 거동 및 환경 독성 특성 II: 인화성 물질을 중심으로 (Fate and Toxicity of Spilled Chemicals in Groundwater and Soil Environment II: Flammable)

  • 조은혜;신도연
    • 한국지하수토양환경학회지:지하수토양환경
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    • 제23권6호
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    • pp.1-8
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    • 2018
  • In this study, formaldehyde and benzene were selected as the arbitrary chemicals in accidental leakage to environment, and their physicochemical and biological characteristics and toxicity were studied. Also, the fate of these chemicals in soil and groundwater was studied based on the results of previous studies. They can be released into the atmosphere as gas or vapor phase, which then can be photochemically degraded. Since they have relatively high water solubility, they are likely to have high mobility in water and soil. Volatilization of these chemicals from soil is affected by the soil moisture content. Biodegradation of formaldehyde and benzene is one of the important pathways as well. Therefore, it is necessary to study the environmental impacts of leakage accidents of flammable chemicals such as formaldehyde and benzene. Further research on the fate of flammable chemicals in the environment is needed to take appropriate response actions to leakage accidents of flammable chemicals, and this will contribute to the development of practical guidelines to cope with leakage accidents.

오염지역과 비오염지역의 토양의 특성과 토양 미생물의 분포 (The Soil Properties and Microbial Numbers of soil Samples Collected from Polluted and Unpolluted Areas in Korea)

  • 심재욱;이민순;이상선;이태수;이민웅
    • 한국토양환경학회지
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    • 제3권2호
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    • pp.31-39
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    • 1998
  • 오염지역과 비오염지역으로부터 채집한 토양에서 토양의 습도, 유기물의 함량, 토양산도 등 물리적인 특징과 토양미생물의 분포와 같은 생물학적인 특징이 조사되었다. 지역에 따른 유기물의 함량과 토양산도는 큰 차이를 나타내었으나, 식물군락에 의한 토양수분과 유기물 함량의 차이점은 발견할 수 없었다. 토양의 산도는 미생물의 분포수와 상관관계를 나타내었다. 이러한 것은 식물이 자라는 토양에 변이를 주는 것으로 산성비와 관련이 있는 것으로 추정된다.

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토양칼럼을 이용한 초기우수 중 염양염류의 수변녹지 토양에서의 제거도 평가 (Soil Column Experiment to Evaluate Removal of Nutrients in Stormwater Runoff by Soil of Riparian Protection Zone)

  • 윤석표;최지용
    • 한국물환경학회지
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    • 제20권3호
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    • pp.231-235
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    • 2004
  • To investigate removal effects of nutrients in stormwater runoff by soil of riparian protection zone, soil column experiment was conducted for 20 months. Artificial stormwater runoff containing phosphate and nitrate was applied on the surface of soil column twice a week, and phosphate and nitrate concentrations were measured from the leached water. Soil of riparian protection zone reduced the released amount of infiltrated water to the surrounding water. After infiltration of 1m depth of soil column, average removal rates of phosphate and nitrate were 97.7 % and 74.7 %, respectively. As main mechanisms of phosphate are adsorption to soil particle and utilization by plants, periodical replacement of soil and harvesting of plant at the end of growing season are required. For the removal of nutrients in stormwater runoff by the soil layer, soil of riparian protection zone has higher hydraulic conductivity to infiltrate stormwater. Sandy soil having hydraulic conductivity of about $1{\times}10^{-2}cm/s$ range might be appropriate for this purpose.