• Proceedings of the Membrane Society of Korea Conference
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• 1992.10a
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• pp.74-75
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• 1992

침출수를 처리하는 방법은 여러가지가 있으나 주로 생물학적 처리방법과 물리화학적 처리 방법으로 구분할수 있다. 특히 침출수는 매립물의 종류에 따라 침출수 수질이 상당히 차이가 나는데 도시쓰레기 매립에 의한 일반폐기물 침출수는 그 처리 및 관리가 용이하나 특정 폐기물 침출수는 염의 농도가 높고 중금속을 다량 함유하고 있어 1차 처리후에도 방류가 곤란하다. 이 경우는 특정 폐기물 매립지인 H매립장의 침출수에 대하여 Pilot Test를 통한 적정 Process 경제성을 검토한 것이다.

• Proceedings of the Korean Geotechical Society Conference
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• 1995.10a
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• pp.15.1-20
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• 1995

일반적으로 일반 및 유해폐기물 매립지에서 진흙층의 기능적 수행목적은 다음과 같다고 할 수 있다. 지표면 유출의 증진을 위하고, 우수의 침투억제 및 폐기물의 표면 노출 시 완충작용, 따라서 최종복토의 붕괴는 이러한 중요 기능을 마비시키고 있다. 본 연구는 추운 날씨상태의 폐기물 매립지 최종복토의 거동을 수행하였으며, 실제로 설계된 세 개의 거대한 실험실 Tank에서 복토에 대한 실험이 시행되었다. 이 거대한 실험장비의 제원은 0.75m x 2.4m와 2.0m 깊이로 되어 있다. Tank안은 시방서적으로 폐기물 매립지가 요구하는 진흙층과 최종복토를 위한 물질로 채워졌다. 그들의 실험결과는 동질/융해에 따른 진흙과 복토층의 붕괴현상은 물리적, 공학적인 측면에 영향을 주는 것으로 나타났다. 본문은 실험에 사용된 복토층의 묘사, 그들의 실험결과들과 실험을 통한 결과분석 및 결론을 설명하고 있다. 실험결과로서는 각 모형들의 우수와 침출수 자료, 온도변화의 배경과 최종복토에서의 Water Balance를 포함하고 있다. 또한 결과로서 시험된 세 개의 모형들은 매립지에서의 동결깊이(29cm~32cm)를 나타내주며 그들 중 하나의 모형은 배수층을 가지고 있어 침출수억제에 효과적이므로 다른 모형보다 복토층으로서 우위에 있다는 것을 지적하고 있다.

• Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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• 2004.04a
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• pp.192-197
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• 2004

폐기물 매립층의 침하는 매립 폐기물의 조성특성의 영향으로 인하여 침하특성이 일반 흙의 토질역학적 거동과 다르게 나타난다. 폐기물의 침하특성은 매립당시 나타나는 폐기물 하중에 의한 침하특성과 향후 장기적으로 유발되는 생화학적 침하특성을 구분하여 규명하는 것이 필요하다. 본 연구에서는 국내 대표적 매립지 폐기물 침하에 대한 계측자료를 바탕으로 역학적 일차 압축침하와 생화학적 이차 압축침하에 대한 침하특성계수를 산정하였다. 또한 Sower(1973)의 매립지 폐기물에 대한 침하량 산정식을 응용하여 다단형 매립지 폐기물에 적용할 수 있는 침하량 산정식을 구성하였다.

• Journal of Korea Soil Environment Society
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• v.1 no.1
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• pp.103-109
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• 1996

The cover liners at municipal and hazardous waste landfill is not emphasized as much as the bottom liners. However, one of the most effective reason of landfill destroy is the cover liner failure. The cover system at municipal and hazardous waste landfill, 1 perform the following functions, at minimum: promote surface runoff, impede infiltration, protect settlement in the landfill, and provide a buffer from surface exposure of the waste. This research was to expand the existing knowledge base of landfill cover liner behavior during period of freeze/thaw Also, the great Lysimeter was built in the laboratory to provide as much as same condition with the field and three designs were simulated by actual cover materials. The result of simulation indicated the clay was effected by freezing/thawing. The degradation of cover liners in the frost penetration affects the physical, engineering properties of clay. these factors may consider to design and construct of the landfill. This paper provides the description of testing cover liners, experimental results and a discussion of the results of the simulation.

• Journal of the Korean Geotechnical Society
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• v.15 no.6
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• pp.99-109
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• 1999

In the case of domestic general waste landfills, cumulated leachate level is often formed in the landfill due to the waste of high moisture content and it becomes important to characterize the hydraulic properties of the disposed waste. Although many hydrologic studies have been peformed for leachate barriers and pheriperal subsurface environments, few studies have been done to investigate the hydraulic property of the disposed waste and cover soils and to analyse the leachate flow behavior within landfills. In this paper, the geotechnical properties of the waste and buried cover soils are identified through the field experiment including pumping and slug tests. The results of various tests show that the field density of the cover soils is somewhat higher than the maximum laboratory density of cover soils and the vertical flow of leachate and gas in the landfill is prevented by the buried cover soils. The hydraulic conductivities of field pumping test and slug tests are well matched and stayed in the range of hydraulic conductivities of well compacted wastes in the literature.

• Journal of the Korean Association of Geographic Information Studies
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• v.1 no.2
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• pp.14-25
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• 1998

The purpose of this paper is to select proposed waste facilities sites after consideration of relative importance of siting factors. From the literature review we have established the siting factors affecting selecting waste facilities sites, and constructed hierarchy of siting factors to evaluate the relative importance of the factors using Analytical Hierarchy Process(AHP). After mail surveying of expert group, we have analyzed the relative importance of siting factors affecting waste facilities. We have constructed Geographic Information System(GIS) of raster type, based on seventeen theme maps of siting factors on waste facilities, to select the proposed waste facilities sites after consideration of the relative importance of the siting factors for Gyongsan city, in Korea. After applying linear combination method, and factor combination method to overcome the methodological limitations of land suitability analysis, we have found five proposed sites, where intersected with proposed sites obtained from the two methods. From this research we have found that 1) methodologically, using GIS for selection of proposed waste facilities sites turned out to be highly useful, 2) application of relative importance of siting factors and two methods of land suitability analysis in selection of proposed waste facilities sites are pertinent enough to provide valid and reliable results, and 3) the research methods and approach employed in this research will be highly useful in site selection of other major facilities.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2000.04a
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• pp.160-161
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• 2000

난지도 육상폐기물매립지는 서울의 한강 하류부인 마포구 상암동에 위치하며 1매립지와 2매립지가 인접하여 1993년 3월부터 1997년 12월까지 15년간 이용되었으며 비분리방식에 의한 일반쓰레기는 물론이고 하수슬러지 및 산업폐기물 둥도 일부 매립되어 있는 매립지면적 2,715,000$m^2$, 매립면적 1,904,000$m^2$, 매립량 91,972,000$m^2$, 매립높이 95m로 세계최대의 비위생적 쓰레기 매립지 중의 하나로 매립중지 후 현재 8년이 경과하고 있다. (중략)

• Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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• 1996.11a
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• pp.71-76
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• 1996

• Journal of the Korean Society of Groundwater Environment
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• v.5 no.4
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• pp.223-232
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• 1998

The Okmyong Waste Landfill which is one of major industrial waste landfills in Korea has been used for 10 years since January, 1988. The groundwater in range of 2∼3 km from the landfill is a little acidic and has high concentrations of EC, NO$_3$, and SO$_4$ because of acidic rain in Pohang. The groundwater pattern in Piper's trilinear diagram belongs to Ca-SO$_4$and Na-SO$_4$types, but Ca-SO$_4$type is more predominant. The groundwater of five monitoring wells at the landfill area is a litle alkaline and has high concentrations of TS, COD, Na, Cl, SO$_4$, Alkalinity and F because of the effect of the leachates. They also have high heavy metals of Mn, Zn, Pb, Cr and Ni but toxic organic compounds are not detected. Their groundwater pattern is Na-SO$_4$type and distinguished from the groundwater pattern Na-Cl types of the Nanjido and the Seokdae Municipal Waste Landfills. The range of groundwater contamination which is validated up to now is about 120m west from the entrance of the Okmyong Waste Landfill. To prevent the dispersion of the leachates to the outside, cutoff walls should be constructed at the boundary of the landfill. Several pumping wells should also be developed at the landfill so that the contaminated groundwater can be pumped and treated at a leachate-treatment plant in the landfill.

• Journal of the Korean Society of Groundwater Environment
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• v.3 no.1
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• pp.37-49
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• 1996

The objectives of this study are to investigate the groundwater and surface water contamination, to interpret the attenuation mechanism of contaminant transport, and to find the appropriate contamination indicator. at the two big landfill sites : Nanjido Landfill and Hwasung Landfill. Leachate from the Nanjido, th, Hwasung and the Kimpo waste disposal sites is characterized by high temperature (31.7-40.1$^{\circ}C$), high electric conductivity (14,650-32,800 ${\mu}$S/cm), somewhat higher pH(7.58-8.45) and low Eh (-119.4-20.4 mV), and is enriched in both major (Na$^{＋}$, K$^{＋}$, Ca$^{2＋}$, Mg$^{2＋}$, HC $O_3$$^{－}$, Cl$^{－}$) and minor (Mn, Sr$^{2＋}$, Ba$^{2＋}$, Li$^{＋}$, F$^{－}$, Br$^{－}$) ions. Municipal solid waste leachate and industrial waste leachate are effectively discriminated by the content of S $O_4$$^{2－}$, Fe, and heavy metals. The attenuation mechanism of each component was assessed using the chemical analysis. Cl-normalizing process, WATEQ4F simulation, and preceding flownet analysis. Based on the calculation of Contamination Factor, K, Na, Ca, Mg, B, Zn, HC $O_3$, Cl, F, Br and TOC are effective contamination indicators in the Nanjido landfill site, and K, Na, Ca, Mg, B, S $O_4$, HC $O_3$, Cl, F, Br and TOC in the Habsburg landfill site Particularly, TOC is the best contamination indicator in landfill sites influenced by sea water.