• Title/Summary/Keyword: Unsanitary landfill

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A Novel Treatment Method for the Wastes of Unsanitary Landfill at the Residential Development Site (택지개발 현장 내 비위생매립지의 매립쓰레기 처리방안 연구)

  • Son, Young-Gyu;Park, Beom-Guk;Lim, Myung-Hee;Kim, Won-Jang;Khim, Jee-Hyeong
    • Journal of Environmental Science International
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    • v.17 no.2
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    • pp.177-183
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    • 2008
  • Characteristic of wastes in a unsanitary landfill at the residential development site in H city, Kyunggi-do was investigated for the disposal of huge amount of wastes. The total amount of wastes was estimated at 117,000 ton and construction solid wastes and municipal solid wastes were detected together. The portion of combustibles was very low and soils, concrete wastes, and pebbles were the major components in landfilled wastes. Because the site was the residential development site, the landfilled wastes should be removed immediately for the construction. Therefore the way that the unsanitary landfill was excavated and the wastes were sorted into three categories such as soils, noncombustibles and combustibles was selected as the best method. Soils and noncombustibles could be recycled and sorted combustibles could be re-landfilled in a smaller area or incinerated.

Treatability Tests for the Bioremediation of Unsanitary Landfill Waste Soils

  • Park, Sung-Chan;Lee, Young-Hee;Oh, Young-Sook
    • Journal of Microbiology
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    • v.41 no.2
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    • pp.169-173
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    • 2003
  • A treatability investigation was conducted to determine if landfarming would be effective for the remediation of unsanitary landfill waste soils. Calculations based on biodegradable organic carbon contents and initial CO$_2$ evolution rates revealed that landfarming has a high potential for landfill site remediation and that the optimum strategy for bioremediation is site-specific.

The Settlement Characteristics of Unsanitary Solid Waste Landfilles (비위생 매립지반의 침하특성 연구)

  • Lim, Ju-Hyun;Jo, Suk-Ho;Kim, Hak-Moon;Jang, Kyung-Jun;Kim, Chan-Kuk
    • Proceedings of the Korean Geotechical Society Conference
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    • 2008.03a
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    • pp.1012-1023
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    • 2008
  • This paper estimates the long-term settlement of In-cheon unsanitary solid waste landfills. which is 20 years old. The unsanitary solid waste landfills was subjected to pre-loading system over a period of 1 year, and the settlement for 300 landfill monitors provided measured data. This landfill contain relatively small amount of organic component, therefore the initial stage of settlement was very small. The existing settlement models are examineed to compare with the observed behavior of this site and, also to estimate long-term settlement. The Hyperbolic, Bjarngard & Edgers, and Power Creep Law models showed good agreement well with the measured settlement of the In-cheon unsanitary solid waste landfills.

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Case Study of Remidation and Investigation of Closed Unsanitary Landfill for Prevention of Leachate (비위생매립지 정밀조사 및 침출수 방지를 위한 정비방안 연구)

  • Kim, Sangkeun;Lee, Yongsoo
    • Journal of the Korean GEO-environmental Society
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    • v.13 no.1
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    • pp.5-13
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    • 2012
  • For the last decade the amount of waste has rapidly been increased in South Korea and many waste landfills have been built according to government guidelines specifying required systems such as landfill liner, leachate collecting facilities, final cover system, etc. This effort has led the recently constructed landfills to be under well managed sanitary condition. In a meanwhile closed waste-landfill sites in the past before the adoption of the government guidelines exits under unsanitary condition. In these cases untreated leachate flew out to the surroundings due to the absence of liner and leachate collecting facilities and caused groundwater and soils to be contaminated. Waste generated odor and gas also brought civil complaints. Because environmental influences bring serious problems nearby sites, it is required to have unsanitary waste-landfills to be appropriately treated and managed. A study to evaluate environmental influence and contamination level of surroundings nearby and on the unsanitary landfills is necessary before the establishment of "Management guide of closed landfill site." This paper presents an environmental evaluation for the closed site, Doil-dong landfill, according to "Closed landfill management regulation" by Ministry of Environment. "D" landfill, located in Pyeongtaek city, has possobility to contaminate surrounding surfacewater and groundwater by leakage of leachate. The in-situ stabilization carried out to build the DMW(deep soil mixing cutoff wall) wall and drainage systems.

A Novel Disposal Methods for Unsanitary-Landfilled Wastes at Residential Development Sites (택지개발사업현장의 비위생매립지에서 발생하는 매립쓰레기의 합리적인 처리)

  • Son, Young-Gyu;Lee, So-Young;Kim, Lee-Hyung;Khim, Jee-Hyeong
    • Journal of the Korean Society of Hazard Mitigation
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    • v.8 no.1
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    • pp.139-143
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    • 2008
  • Recently, detections of huge amount of wastes in the unsanitary landfills at a residential development sites were reported. Because the sites were the residential development sites, all landfilled wastes should be removed for the constructions. Therefore the way that the unsanitary landfills were excavated and then the wastes were sorted into three categories such as soils, noncombustibles, and combustibles was selected as the best method. Soils and noncombustibles could be recycled in the sites and combustibles could be compacted and be relandfilled in a smaller area.

사용종료 매립지 주변 토양 및 지하수 환경성 분석

  • 김상근;정하익;이용수
    • Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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    • 2003.09a
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    • pp.188-191
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    • 2003
  • Soil and ground water environments around closed landfill is very important to estimate a environmental stabilization of landfill. In this study, geoenvironmental investigation was carried out for closed unsanitary landfill in Gyeonggido. Geotechnical and environmental characteristics of ground water and soil around this landfill site was evaluated for analysis of its environmental situation.

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Feasibility Study on Reactive Material in Permeable Reactive Barriers Against Contaminated Groundwater with Ammonium from Unsanitary Landfill (암모늄으로 오염된 비위생 매립지 주변지반의 지하수 정화를 위한 반응벽체내 물질 연구)

  • 이승학;박준범
    • Journal of the Korean Geotechnical Society
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    • v.20 no.1
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    • pp.29-36
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    • 2004
  • Batch and column tests were performed to develop the design factors for permeable reactive barriers(PRBs) against the contaminated groundwater with ammonium from unsanitary landfill. Clinoptilolite, one of natural zeolites having excellent cation exchange capacity(CEC), was chosen as the reactive material. In batch test, the reactivity of clinoptilolite to ammonium was examined by varying the initial concentration of ammonium and the particle size of clinoptilolites. One gram of clinoptilolite showed removal efficiency about 80% against the ammonium except in very high initial concentration of 80 ppm, but the effect of particle size of clinoptilolite was not noticeable. Permeability test was performed for the specimens made of clinoptilolite and Jumunjin sand with 20 : 80 weight ratio. Flexible wall permeameter was employed far permeability test. The specimen containing the washed 0.42-0.85mm clinoptilolite showed the highest permeability of about $10^{-3}$/s. In column test, the reactivity of mixed materials against ammonium in flowing condition was examined with the landfill leachate. With the test results, clinoptilolite was found to be a suitable material for PRBs against the contaminated groundwater with ammonium.

The Settlement Characteristics of Incheon Unsanitary Solid Waste Landfill (인천지역 비위생 매립지반의 침하특성 연구)

  • Cho, Seok-Ho;Lim, Ju-Hyun;Kim, Hak-Moon
    • Journal of the Korean Geotechnical Society
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    • v.24 no.7
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    • pp.37-42
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    • 2008
  • This paper estimates the long-term settlement of Incheon unsanitary solid waste landfill, which is 20 years old. The unsanitary solid waste landfill was subjected to pre-loading system over a period of 1 year, and 300 settlement monitoring provided the long term settlement data. This landfill contains relatively small amount of organic component, and therefore the initial stage of settlement was very small. The existing settlement models were examineed by comparing the observed behaviors of this site, and also they were used to predict the long-term settlement. Power Creep Law (PCL) model showed good agreement with the measured settlement obtained from the initial stage of the measurement, but other models showed satisfactory agreements after $50{\sim}70$ days of measurement.

Reuse Alternatives Analysis of Closed Unsanitary Landfills (사용종료 비위생 매립 부지의 활용 방안 연구)

  • Kim, Taedong;Park, Jong-Woong;Choi, Donghyuk
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.15 no.6
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    • pp.3997-4001
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    • 2014
  • The aim of this study was to suggest site-specific reuse alternatives for closed unsanitary landfills (CULs) scattered in Gyeongbuk Province. The CULs were classified with the factors affecting the site reuse alternative to provide basic data for systematic site reuse. Statistical analysis showed that the site area was the main factor in site classification among the site area, distance to road, and distance to the village. The results proposed a site-specific guide flow to the reuse of the CULs.

비위생매립지 지반환경 정밀조사

  • 김상근;정하익
    • Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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    • 2003.09a
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    • pp.471-474
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    • 2003
  • There has been a steady increase in geoenvironmental engineering projects where geotechnical engineering has been combined with environmental concerns. This study investigate on contaminant around unsanitary landfill situated in urban area and was carried out to evaluate the geoenvironmental characteristics of this site. As a result of this study, groundwater and soil around this landfill site was evaluated for analysis of physical and chemical properties.

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