• 유기물자원화
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• 제15권3호
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• pp.90-96
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• 2007

폐기물 관리시설 중 하나인 폐기물매립지는 유해성분을 함유한 침출수와 가스로부터 발생되는 위생문제와 환경오염 방지를 위해 필요한 시설이며 이중에서 바닥차수층은 가스포집층과 더불어 반드시 설치되어져야 히는 공종이다. 매립된 폐기물에서 발생된 오염된 침출수는 지하수를 오염시키기 때문에 바닥치차수층은 내구성과 함께 $1{\times}10^{-7}cm/sec$ 이하의 저투수성을 확보해야만 한다. 본 고에서는 강원도 P군 폐기물 종합처리시설 중 "복합차수층 조성기술" 이 적용된 매립시설의 바닥차수층 공종과 관련하여 현장시공과정 상의 시험내용 및 품질관리 사항들을 요약, 정리하여 개발기술의 현장적용 사례를 소개하고자 한다.

• Environmental Engineering Research
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• 제7권3호
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• pp.121-127
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• 2002

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 1999년도 봄 학술발표회 논문집
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• pp.521-528
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• 1999

As the size of our industry and population inclose, the byproducts such as municipal solid wastes, industrial wastes are in the increasing phase. The treatment of such things is rising as a social problem. Today, the final disposal of these wastes depends mostly on the landfill, and the sanitary landfill is required and designed for preventing soil and groundwater contamination. Clays have been used for a liner material of a sanitary landfill, however, the high quality clay is hard to come by and quite expensive as a lining material in our country. Using the waste lime produced abundantly every year from chemical processes was studied here, made from the proper mixing of the bentonite and the waste lime meets the regulations from the USEPA. The soil property index tests (sieve analysis, specific gravity test Atterberg limit test) were performed, and at last to confirm the sorption characteristics of the bentonite and the waste lime the sorption isotherm equilibrium test and the sorption isotherm were performed with Toluene and Ethylbenzene which are the main components of the leachate from the landfill.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 1997년도 총회 및 춘계 학술발표회 논문집
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• pp.70-73
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• 1997

산업폐기물의 재활용은 정부가 적극적으로 권장하고 있다. 폐석회의 비중, 건조단위중량. 일축 압축강도, pH, 투수계수 등의 지반특성을 실내시험결과를 고찰함으로써 폐석회가 매립장에서 인공차수재 및 복토재로 사용 가능성을 평가한다. 폐석회를 몇가지 환경실험을 통해서 그 결과를 EPA기준과 비교하였다. 본 논문에서는 실내실험을 수행한 결과를 전술하였고, 실험결과 분석에 의하면 혼합토(폐석회/화강풍화토)가 위생매립장의 인공차수재로 가능성이 있다고 판단된다.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 2002년도 추계학술발표회
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• pp.390-393
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• 2002

Many researchers have studied for the barrier liner in the landfill that is mixed with clay mineral, native soils and solidified agent. However, they have a littel but problems for safety construction and maintenance as a bottom liner systems in the landfill. In this paper the authors studied the effects on hydraulic conductivity by electric-chemical ion-exchange agent that is a soil stabilization agent(Sulphonated Oil), The application of the soil stabilization agent to meet the hydraulic conductivity of clay liner in landfill is possible if the additive quantity and a proper reaction time is determined relevantly in the laboratory test.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2004년도 춘계학술발표회
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• pp.453-460
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• 2004

To prevent penetration of rainwater into the landfill site is the main purpose of the final cover in landfill sites. Conventional designs of landfill covers uses geotextiles such as geomembrane and GCL, and clay liners to lower the permeability of final covers of landfill sites. However, differential settlement and the variation of temperature in landfill sites cause the development of cracks or structural damage inside the final cover and it is also difficult to obtain clay - the main material of the compacted clay liner in Korea. Thus the former final cover system that suggests geomembrane and GCL or compacted clay liner has several limitations. Therefore, an alternative method is necessary and one of them is the application of SRSL(self-Recovering Sustainable Liner) material. SRSL is two different layers consist of individual materials that react with each other and form precipitates, and with this process lowers the permeability of the landfill final cover. SRSL generally is made up of two layers, so that when a internal crack occurs the reactants of the two layers migrate towards the crack and heal it by forming another liner. In this study the applicability of SRSL material for landfill final cover was examined by performing; (1) jar test to verify the formation of precipitate in the mixture of each reactants, (2) falling head test considering the field stress in order to confirm the decrease of permeability or prove that the hydraulic condctivity is lower than the regulations, (3) compression tests to judge weather if the strength satisfies the restricts for landfills, (4) freeze/thaw test to check the applicability of SRSL for domestic climate. In addition, the application of waste materials in the environmental and economical aspect was inspected, and finally the possibility of secondary contamination due to the waste materials was examined by performing elution tests.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2003년도 봄 학술발표회 논문집
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• pp.585-592
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• 2003

The purpose of this paper is to investigate purification characteristic of soil-bentonite landfill liner and to develop of desirable liner system. In this study, column tests for soil-bentonite, reactive soil-bentonite and existing bentomat and reactive bentomat were carried out under the high pressure with water and leachate.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 1999년도 추계학술발표회
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• pp.73-76
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• 1999

Soil-bentonite mixtures are frequently used as impervious for waste disposal sites. In the present work, bentonite composite liner systems(BCL) have been developed by utilizing Korean zeolitic bentonites. The geomechanical properties of the liner systems, such as strength, hydraulic conductivity, etc. have been studied. The laboratory and field test results are also be presented.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2001년도 지반환경 및 준설매립에관한 학술세미나
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• pp.85-95
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• 2001

There has been a steady increase in closed waste landfill. Sanitary and contamination prevention systems such as liner system, leachate treatment, gas treatment system were not installed in unregulated waste landfill. This study was carried out to introduce the rehabilitation method and case of unregulated closed landfill.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 1997년도 봄 학술발표회 논문집
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• pp.153-160
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• 1997