• Geotechnical Engineering
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• v.13 no.2
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• pp.65-76
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• 1997

It has been a growing concern how to use Nanji-Island landfill and other refuse landfills located around metropolitan areas. In this paper, settlement characteristics of Nanji -Island landfill were studied by analyzing the data collected over the period of two years. The settlement characteristics were similar to the analyzed settlement characteristics of 24 refuse landfills in the United States. The model proposed by Bjarngard and Edger(1990) model is considered to be suitable for the long-term prediction of Wnil -Island landfill. The ten-year -period prediction value of Bjarngard and Edger (1990) model is considerably different from that of Power Creep Model. If existing settlement models used for long-term prediction of the settlement characteristics of landfill are not analyzed thoroughly there remains the possibility of including considerable prediction errors.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2003.11a
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• pp.223-224
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• 2003

본 연구의 궁극적인 목적은 우리나라에서 현실적으로 적용하기 적합한 배출량 산정방법을 이용해 국내 최대규모의 비위생 매립지이며, 서울과 근접한 난지도 매립지에서의 VOCs 배출량을 산정하는 것이다. 난지도 매립지는 서울시 마포구 성산동과 상암동 일대에 위치해 있으며, 1977년 8월부터 매립이 시작되어 1992년 9월까지 총 15년 1개월간 매립되었다.(중략)

• 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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• 1996.12a
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• pp.57-71
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• 1996

• 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.

• Journal of the Korean Society of Groundwater Environment
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• v.3 no.2
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• pp.80-94
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• 1996

The Nanjido Landfill has recently become one of the most important environmental sites for a hydrogeological study. Hydrogeological study was performed by understanding the current situation, analyzing hydrogeological information, and constructing a hydrogeological data base. The constructed data base was used for the analyses of several important phenomena in the Nanjido Landfill. Saturated hydraulic conductivity and underground temperature were measured. Based on the hydraulic conductivity and rainfall data, net infiltration rates were estimated. Leachate production rates are estimated by using the data base. The data base and a hydraulic model were used to understand the formation of the so called floating leachate layer.

• Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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• 1996.11a
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• pp.102-105
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• 1996

난지도 매립지는 매립충의 불균질성과 고온의 침출수 및 가스의 흐름이 동시에 복합적으로 일어나는 현상 때문에 수리지질학적으로 매우 복잡한 지역이다. 난지도의 수문층서단위 조사와 디스크-장력 침투계(Disc tension Infiltrometer)로 불포화대 수리 특성을 추정하였으며 가스 거동 현상을 이해하기 위해 지온을 측정하였다. 매립지 주변의 지하수위 변화를 조사하기 위해 양수정과 다중-수위관측정(Multi-Level Monitoring Well)에서 수위변화를 관측하였다. 불포화대 수리특성과 기상자료를 바탕으로 매립지로의 순침투량을 추정하였다. 이것을 근거로 총 침출수 발생량을 추정하였으며, 기저 지하수면 상부에 분포하는 포화 침출수대, 즉 부유침출수의 생성 메카니즘에 대한 연구도 수행하였다.

• Journal of Korea Water Resources Association
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• v.30 no.1
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• pp.23-34
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• 1997

The Nanji-Do ladnfill is an ill-conditioned reclaimed land without pollution intercepting facilities, and has high ground water table and deep stratum. The purpose of this study is to analyze the solute transport in steady-state groundwater flow and to predict the solute dispersion in Nanji-Do landfill using HST-3D model. As results, the groundwater flows radially outward from the center of No. 1 and No. 2 landfills, and large amount of runoff is moved into Han River. The predicted relative concentration of total dissolved solute(TDS) at two years later was 0.25 in the weathering zone, 0.26 in the lower alluvium, and 0.28 in the upper alluvium. Thus, the further pollution to bottom rock and Han River was predicted by comparing the corresponding present values of 0.29, 0.32 and 0.35.

• Journal of the Korea Organic Resources Recycling Association
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• v.4 no.2
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• pp.47-53
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• 1996

This study was carried out to estimate the amount and the characteristics of sewage sludge disposed of in the Nanjido sludge landfill site. Boring test was conducted to estimated the landfill volume and to get sludge samples to be analyzed. Total analysis and leaching test were performed to find the characteristics of sewage sludge. The Nanjido sludge landfill site had the surface area of $50,000m^2$ and the average depth of 15m. The estimated sludge volume was 600,000ton. Sewage sludge in Nanjido sludge landfill site was very stable. Results of total analysis of heavy metals indicated that the sludge could be classified as a non-hazardous waste according to the California state regulation. The sludge also could be used as compost based on compost quality criteria of foreign countries. Results of Korea Extraction Procedure showed that sewage sludge in Nanjido sludge landfill site was not a hazardous waste.

• Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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• 1997.05a
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• pp.39-42
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• 1997

현재 반입이 중지된 난지도 매립지에 공원조성이나 하수처리장등의 시설을 설치하는등 매립지를 효율적으로 이용하려는 많은 계획이 진행되고 있다. 그러나 이같은 계획을 수행함에 알서 매립토의 성분을 분석하여 이를 토대로 적절한 대책이 마련된 후에 계획이 수행되어야 할 것이다. 따라서. 본 논문에서는 현재 설치되고 있는 난지 하수처리장 부지에 대하여 매립토의 조성성분 및 침출수의 성분을 분석하고 분석결과를 토대로 시설설치에 따른 토양오염의 가능성을 최소화 할 수 있는 대책수립의 기본자료로 제공하고자 하였다. 이를 위하여 대상지역의 매립토에 대하여 이물질의 중량비와 함수량 및 입도분석을 실시하였고 아울러 침출수의 오염도를 분석하였다.