• 기술사
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• 제46권2호
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• pp.44-50
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• 2013

The treatment of city life wastes is headache problem. Now, only small portion of burnable wastes is burnt at modern process incinerators, the other large portion is buried in the soil by landfill method. The burnable wastes will be increased year by year. The dioxin, the cancer-causing agent, produced by incineration of wastes influences harmful effect to national human health. The new idea of burnable wastes treatment is using the city life wastes as auxiliary fuel of fluidizing bed combustion boiler of large scale coal-fired power plant. The dioxin-free treatment of burnable wastes is sucessfully achieved by burning the wastes, in flyash storm at fluidizing bed combustion boiler.

• 한국지반신소재학회논문집
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• 제19권4호
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• pp.33-40
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• 2020

최근 대규모 택지개발 현장에서 굴착공정 중 매립폐기물이 발견되는 사례가 빈번히 발생되고 있다. 발생된 매립폐기물을 환경적으로 처리하기 전에는 대상지역의 개발사업을 진행할 수 없으며, 매립폐기물에 대한 처리대책을 수립하여 환경적이고 경제적으로 처리하여야 한다. 본 연구에서는 매립폐기물의 처리에 있어 단가 산정의 기본적인 계수가 되는 매립폐기물의 겉보기밀도와 체적환산계수의 상관관계를 분석하고자 하였다. 이를 위하여 ◯◯지역의 사용종료 매립지 10지점에서 매립폐기물을 채취하여 물리적성상을 분석한 후, 성상별 및 혼합폐기물의 겉보기밀도를 측정하였다. 매립폐기물의 겉보기밀도와 체적 환산계수의 상관관계를 분석하기 위하여, 매립폐기물의 겉보기밀도로부터 유추한 체적환산계수와 실측한 체적환산계수, 경험식에 의한 체적환산계수를 비교하였다. 분석결과, 겉보기밀도로부터 유추한 체적환산계수, 경험식에 의한 체적환산계수, 그리고 실측한 체적환산계수는 일정한 상관관계를 나타내고 있어, 겉보기밀도와 체적환산계수에 관한 기초자료로서 활용할 수 있을 것으로 판단된다.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 2001년도 총회 및 춘계학술발표회
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• pp.210-213
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• 2001

There has been a steady increase in treatment of wastes buried in unplanned waste landfill situated in urban area and river side. This study was carried out to evaluate the geotechnical and environmental properties of soil sorted by classifier from wastes in unregulated landfill. The physical mechanical, and environmental properties of sorted soil were investigated for treatment of wastes and soil including landfill.

• 한국건축시공학회지
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• 제3권1호
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• pp.147-154
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• 2003

Recently, the amount of the construction and demolition wastes has rapidly increased due to increasing construction projects. In the past, most of the construction and demolition wastes were buried in the ground of thrown away. Illegally, without any treatment, so various harmful environmental pollution problems were occurred. In this study, the domestic data on the amount of the construction and demolition wastes and the disposal methods were collection and analysed. Specially, the recycling and management systems of the construction and asphalt concrete wastes were studied. A new technology and necessary policy for recycling were suggested. In general, the industrial wastes were produced in the particular place, and the amount and the characteristics of the wastes able to be estimated by the studies on the treatment technology. And the investment of the facilities for the industrial wastes have been made continuously. But little attention has been relatively given to the treatment technology. And system for the construction and demolition wastes for the political support and facilitation on the proper treatment and the recycling, the necessary of information exchange system and the manifest system for treatment of waste on commission were recommended, and also devised methods to develope and support the recycling industry. In the future, the subject of study is going to carry out analysis of economic and market in making products.

• 한국품질경영학회:학술대회논문집
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• 한국품질경영학회 2004년도 품질경영모델을 통한 가치 창출
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• pp.291-297
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• 2004

For the while, food wastes have been mainly gathered in a trash place in outskirt of Seoul to bury under the ground. Recently the residents near the area strongly refused to fetch those food wastes to their area because of the terribly bad smell. According to the statistic, the food wastes have around $30\%$ portion of total living wastes, which are more than other countries. Most of the food wastes have been simply buried or incinerated without deep consideration of resource recovery view. Such burying or incineration makes problem to the residents' life condition. So the first is to reduce as much as possible and the rest should be controlled to reuse as resources.

• Mycobiology
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• 제50권6호
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• pp.420-428
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• 2022

Plastic wastes have a negative impact on marine environments; however, they can be used as carbon sources and habitats by certain microbes. Microbes in the marine plastisphere can migrate worldwide through the ocean and cause serious environmental problems when they encounter suitable environments. Therefore, efforts to investigate the microbes inhabiting the marine plastisphere are increasing. In the present study, fungal strains were isolated from plastic wastes buried in Korean sea sands and mudflats and identified using molecular and morphological analyses. Five species were identified that were previously unrecorded from South Korea: Cladosporium funiculosum, Neosetophoma poaceicola, Neosetophoma rosigena, Parasarocladium gamsii, and Trichoderma fomiticola. Their molecular phylogenies and morphological characteristics are described in this study.

• 한국건설순환자원학회논문집
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• 제5권2호
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• pp.83-90
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• 2010

As a reinforced fabric, asbestos has been utilized as a fire-resistant material as it has a superior flexural stiffness and heat resistance up to $1500^{\circ}C$. However, due to its harmfulness, its use has been prohibited recently and the even the installed asbestos materials are being repaired or supplemented if there is a concern about flying. Asbestos is mainly used for construction panels as a reinforced fabric and coating materials to ensure the fire-resistance of steel frames. Asbestos was used as fire-resistant materials for steel frames until 1991 and then prohibited as Act on Industrial Safety and Health limits the concentration of asbestos in the air. Classified as a designated waste according to Act on Waste Control, asbestos must be buried if there is no possibility of flying (panel-type materials) or cement-solidified and then buried if there is a possibility of flying (spray coating material) In general, it is required that a new waste landfill include a certain landfill facility for designated waste, but in reality there is an absolute storage of landfill facilities for designated waste as they only install facilities of the size required by the regulations. This could result in the 2nd environmental pollution as they cannot process asbestos wastes which will be generated in large volume in the future. This study explores a method that melts asbestos wastes at $700^{\circ}C$ rather than cement-solidifying the waste asbestos from construction sites, especially asbestos-containing spray coating. The study results showed that there was no change in the composition and shape even though asbestos wastes was melted at $1300^{\circ}C$, but there was a change for the specimen which was process in advance for low temperature melting and then melt at $900^{\circ}C$.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2008년도 춘계 학술발표회 초청강연 및 논문집
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• pp.1075-1082
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• 2008

Recently, coal ashes which are increasing annually are buried in ash ponds as industrial wastes. However, buried coal ashes can pollute ground water and ground due to leachate from coal ashes, which are serious environmental problem. Even though a lot of researches on recycling of coal ashes have been conducted, only 15% of coal ashes are recycled up to now. And those recycled coal ashes are not bottom ashes but fly ashes. So in this study, it was proved that Bottom Ash can be used as an alternative material to O.P.C(Ordinary Portland Cement) according to laboratory test results and test field construction. Also bottom ash is more economical and environmentally friendly than O.P.C.

• 자원환경지질
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• 제36권2호
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• pp.123-131
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• 2003

광양 폐광산의 갱구와 폐광석 적치장에서 발생되는 산성광산배수에 의한 침출수의 특성, 유동경로, 투기채널 및 매립된 폐광석의 탐지를 위해 복합 지구물리탐사(전기비저항, 자연전위, 지하투과레이다, 탄성파굴절법)를 수행하여 상관 해석하였다. 폐광산에서 유출되는 침출수는 강우에 의한 영향으로 우기에 많이 유출되며 산성광산배수의 지표용출 지점에서 측정된 침출수의 전기전도도는 0.977-1.110 mS/cm이다. 전기비저항탐사 결과 침출수는 두 개의 유동경로로 흐르다가 좁아지는 합류지점에서 일부는 그대로 통과하고 일부는 지표용출의 형태로 나타나 지표 및 지하 수계 및 토양을 오염시키는 것으로 확인되었다. 이러한 침출수의 유동경로는 자연전위탐사 결과 음의 최소값, 지하투과레이다탐사 결과 낮은 투과심도와 탄성파굴절법탐사 격과 저속도대의 분포 특성과 일치한다. 전기비저항탐사 결과에서 나타나는 천부 고비저항대는 레이다파의 회절현상과 상관되어 매립된 폐광석의 영향으로 추정된다. 약 1-1.25 m 깊이에서 일관성 있게 나타나는 지하투과레이다 반사 영상은 산성광산배수의 배출 통로인 매설 파이프에 의한 것으로 해석된다.

• 지질공학
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• 제12권4호
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• pp.379-394
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• 2002

이 연구는 서울특별시 지하철 A설계구간에서, 현재 시점의 지하수 수질 및 오염을 파악함으로써, 추후 지하철 공사로 인한 수질 악화 발생시, 이에 과학적으로 대처하기 위해 수행되었다. A설계구간을 따라 총 21개 시추공에서 지하수 시료를 채취.분석하였으며, 그 결과 배경수질은 주로 $Ca-HCO_3$ 유형으로 나타났다. 전체시료 가운데, 국내 먹는물 수질기준을 초과하지 않은 시료는 1개이며, 나머지 20개 시료는 $SO_4$, Cd, Pb, Fe, Mn, Al, F, $NO_3-N$ 등이 먹는 물 수질 기준치를 초과하여 있었다. 오염의 형태는 일부 시료에서 몇몇 화학 원소의 농도가 나머지 시료에서의 농도보다 크게 나타나는 점오염의 형태를 띄었다. 화학분석 자료와 포화지수 분석을 통하여, 지하에 매립된 물질과 지표 퇴적물이 일차적인 오염원임을 추정하였다. 요인분석 결과, 연구지역 내 지하수 시료의 수리화학적 특성의 약 47%가 오염 인자에 의해 영향을 받고 있는 것으로 나타났다.