• 제목/요약/키워드: remediation

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PERSPECTIVE AND TREND OF CURRENT RESEARCH ON GREEN REMEDIATION IN SOUTH KOREA

  • Park, Jun-Boum
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2010년도 추계 학술발표회 3차
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    • pp.117-124
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    • 2010
  • In the field of soil and groundwater remediation, sustainability was merged into remediation process and green remediation was initiated within the concept of sustainable development. Green remediation was defined and has been already applied to the remediation fields in U.S. In the case of Europe, green remediation has been evaluated for the application of green technology in the remediation industry and they especially defined sustainable remediation following idea of sustainable development. Although green and sustainable remediation is global trends, there are only a few cases about application of green remediation in South Korea. It is needed to develop soil and groundwater remediation technology towards green remediation, considering "Green Growth" as policy direction in South Korea.

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Effect of constraint severity in optimal design of groundwater remediation

  • Ko, Nak-Youl;Lee, Kang-Kun
    • 한국지하수토양환경학회:학술대회논문집
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    • 한국지하수토양환경학회 2003년도 추계학술발표회
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    • pp.217-221
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    • 2003
  • Variation of decision variables for optimal remediation using the pump-and-treat method is examined to estimate the effect of the degree of concentration constraint. Simulation-optimization method using genetic algorithm is applied to minimize the total pumping volume. In total volume minimization strategy, the remediation time increases rapidly prior to significant increase in pumping rates. When the concentration constraint is set severer, the more wells are required and the well on the down-gradient direction from the plume hot-spot gives more efficient remediation performance than that on the hot-spot position. These results show that the more profitable strategy for remediation can be achieved by increasing the required remediation time than raising the pumping rate until the time reaches a certain limitation level. So, the remediation time has to be considered as one of the essential decision variables fer optimal remediation design.

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전통적 연극무대디자인의 재매개 (Remediation in Tradition Theatrical Stage Design)

  • 정민수
    • 한국콘텐츠학회논문지
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    • 제8권12호
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    • pp.207-213
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    • 2008
  • 수십 년 동안 우리는 테마파크, 쇼핑몰, 길거리 등에 이를 보완하는 미디어나 이와 경쟁하는 미디어들을 채워왔다. 이런 공간들은 신문과 잡지, 라디오, 텔레비전, 영화를 재매개(remediation)하거나 이것들의 재매개(remediation) 대상이 되어왔다.[5] 하지만, 전통적 연극무대디자인은 재매개(remediation)가 이루어지지 못했다. 그로인해서 관람자에게 현전감(sense of presence)을 느끼게 할 수 없는 많은 문제점들을 수반하고 있다. 전통적 연극무대디자인의 문제점을 해결하기위한 재매개(remediation)의 체계적 연구가 필요한 시점이다. 본 연구는 전통적 연극무대디자인을 재매개(remediation)할 수 있는 해결방안을 제안한다. 이를 위해서 광범위하고 다양한 영역을 형성하고 있는 시각효과(Visual Effects)분야와 연극무대디자인분야의 협업을 중심으로 연구한다. 시각효과(Visual Effects)를 활용한 전통적 연극 무대디자인의 재매개(remediation) 제안은 두 학문 간의 긴밀한 협업의 체계화를 통한 경제적 고부가가치를 창출할 것이다. 또한 두 학문 분야의 협업의 체계화는 전통적 연극 무대디자인분야에서 관객들이 경험할 수 없었던 또 다른 커뮤니케이션의 패러다임을 만들어 나갈 것이다.

Evidences of in Situ Remediation from Long Term Monitoring Data at a TCE-contaminated Site, Wonju, Korea

  • Lee, Seong-Sun;Kim, Hun-Mi;Lee, Seung Hyun;Yang, Jae-Ha;Koh, Youn Eun;Lee, Kang-Kun
    • 한국지하수토양환경학회지:지하수토양환경
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    • 제18권6호
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    • pp.8-17
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    • 2013
  • The contamination of chlorinated ethenes at an industrial complex, Wonju, Korea, was examined based on sixteen rounds of groundwater quality data collected from 2009 to 2013. Remediation technologies such as soil vapor extraction, soil flushing, biostimulation, and pumping-and-treatment have been applied to eliminate the contaminant sources of trichloroethylene (TCE) and to prevent the migration of TCE plume from remediation target zones. At each remediation target zone, temporal monitoring data before and after the application of remediation techniques showed that the aqueous concentrations of TCE plume present at and around the main source areas decreased significantly as a result of remediation technologies. However, the TCE concentration of the plumes at the downstream area remained unchanged in response to the remediation action, but it showed a great fluctuation according to seasonal recharge variation during the monitoring period. Therefore, variations in the contaminant flux across three transects were analyzed. Prior to the remediation action, the concentration and mass discharges of TCE at the transects were affected by seasonal recharge variation and residual DNAPLs sources. After the remediation, the effect of remediation took place clearly at the transects. By tracing a time-series of plume evolution, a greater variation in the TCE concentrations was detected at the plumes near the source zones compared to the relatively stable plumes in the downstream. The difference in the temporal profiles of TCE concentrations between the plumes in the source zone and those in the downstream could have resulted from remedial actions taken at the source zones. This study demonstrates that long term monitoring data are useful in assessing the effectiveness of remediation practices.

코발트 오염토양에 대한 Solvent Flushing방법에 의한 제염 (Remediation of Soils Contaminated with Co by Solvent Flushing Method)

  • 김계남;원휘준;김희연;이병직;오원진
    • 한국지하수토양환경학회:학술대회논문집
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    • 한국지하수토양환경학회 1998년도 공동 심포지엄 및 추계학술발표회
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    • pp.41-47
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    • 1998
  • The solvent flushing apparatus for soil remediation was manufactured. After the soil around nuclear facilities was sampled and was compulsorily contaminated by Co, the remediation characteristics by solvent flushing were analyzed. Meanwhile, one-dimensional solute transport within nonequilibrium sorption code was developed for modelling of the soil remediation, input parameters for modelling were measured by laboratory experiment. Experimental results are as follows : When water was used as a solvent, the higher was the hydraulic conductivity, the higher the efficiency of soil remediation was. When EDTA solution was used as a solvent, the soil remediation efficiency of EDTA solution showed higher than that of water.

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원위치 지반오염정화사업에서의 실시간 모니터링 시스템의 적용 사례 (Application of Real-Time Monitoring System to In-Situ Soil Remediation Project)

  • 정승용;김병일;한상재;김수삼;홍상기
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2005년도 춘계 학술발표회 논문집
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    • pp.1384-1389
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    • 2005
  • A real-time monitoring system for in-situ soil remediation technologies is developed and then applied to electrokinetic remediation technique in the field trial tests during 150days. The developed system is consisted the controlled program based on internet web page, data logger, measurement instruments and so on. In the measured items there are pH, temperature, electrical current and potential, vacuum pressure. The results indicated that the system is successively applied to electrokinetic remediation technique, and further research considering economic view and multi purpose system for in-situ soil remediation technologies is needed.

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동전기 기법과 Zeolite를 이용한 중금속 오염토의 고정화에 관한 연구

  • 김종윤;김기년;김병일;김수삼
    • 한국지하수토양환경학회:학술대회논문집
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    • 한국지하수토양환경학회 2004년도 임시총회 및 추계학술발표회
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    • pp.195-198
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    • 2004
  • This study applied EK method to remediate contaminated soil by heavy metal(Pb), tried to increase the efficiency of remediation using zeolite as enhanced EK remediation method to overcome the limit of traditional EK remediation method. Adsorption tests on Pb were conducted to apply the EK extraction and test conditions which contained the electrode reversal, operating time were established. After tests, lead-ions were transported into the specific position of zeolite by EK phenomena, then the immobilization of lead-ions at zeolite was developed. Based on these tests, the efficiency of remediation is different with its test conditions. In addition, the efficiency of remediation was improved dramatically by adding zeolite without electrode reversal and satisfied TCLP regulation of EPA in USA through the whole sample range. Finally, absorption and immobilization capacity of zeolite were proved its excellence and confirmed the possibility of application as enhanced EK remediation method.

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연안지역 유류오염 복원에 대한 국내/외 기술고찰 및 향후 연구계획 (Speculation on international/domestic remediation technologies for the contaminated coastal area by oil spill events and future research plan)

  • 차성민;기서진;최희철;김준하
    • 한국방재학회:학술대회논문집
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    • 한국방재학회 2008년도 정기총회 및 학술발표대회
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    • pp.421-423
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    • 2008
  • The development of remediation technologies in the contaminated coastal area from oil spill is essential for solving environmental disaster. Many countries including USA, France and United Kingdom have tried to make novel remediation techniques and predict oil dispersion in the ocean and coastal line by using their own models. To develop new technology of remediation, this research in advance was carried out the status of domestic and international remediation technologies and tried to suggest future research plan for developing new remediation technologies considering geographical characteristics of Korea peninsula.

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계면활성제를 이용한 향상된 EK 정화 시 PAH의 제거

  • 김강호;한상재;김수삼
    • 한국지하수토양환경학회:학술대회논문집
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    • 한국지하수토양환경학회 2001년도 추계학술발표회
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    • pp.127-130
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    • 2001
  • This paper presented to phenanthrene removal of electrokinetic(EK) remediation and enhanced EK remediation with bench scale test. The experiments were carried out on mixture soil with phenanthrene as the test compound. The EK remediation experiments were conducted under controlled voltage. Surfactant solution was constantly supplied at the anode reservoir with constant concentration. Results showed that phenanthrene was removed little in EK remediation. Surfactant helped phenanthrene moving and cumulated in cathode region. Moving effect was increased with surfactant concentration.

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