• 자원환경지질
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• 제36권6호
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• pp.457-467
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• 2003

경상북도 군위군에 위치한 고로 폐아연광산에서 폐광산과 연결된 주 하천을 따라 저수댐 건설 예정지까지 직선 길이 약 12km 구간에서 농경지 토양 및 하천 퇴적토에 대한 중금속 오염(비소, 납, 카드뮴, 구리) 토양정밀조사를 실시하였다. 총 조사 면적은 약 950,000$m^2$ 이고 1,500$m^2$ 당 1지점의 조사 밀도를 유지하여, 총 545개 지점에서 표토(0∼10cm 깊이)를 채취하였으며, 192개 지점에서 심토(10∼30cm 깊이)를 채취하였다. 비소를 제외한 구리, 카드뮴, 납 항목은 모든 지점에서 토양오염우려기준 이하를 나타내었으나, 비소는 표토의 경우 토양오염우려기준 이상의 농도를 나타내는 지점이 104지점으로 전체 표토 조사지점의 20.5% 정도이었으며, 토양오염대책기준을 초과하는 지점은 34지점으로 전체 표토 조사지점의 6.7% 이상이어서 조사 지역 중 상당 부분이 비소로 오염되어 있었다. 심토의 경우 토양오염 우려기준 이상 농도를 나타내는 지점이 18지점으로 전체 심토 조사지점의 약 10.4% 정도이었으며, 토양오염대책기준을 초과하는 지점은 1지점으로 전체 심토 조사지점의 약 0.6%를 나타내고 있어 비소오염이 주로 30cm 이내에 집중되어 있는 것으로 나타났다. 조사지점별 비소농도를 기준으로 토양오염대책기준 농도(15mg/kg) 이상 지역, 토양오염우려기준 농도(6mg/kg) 이상 지역, 토양오염우려기준의 40% 농도(2.4 mg/kg) 이상 지역, 주변배경농도(1.23mg/kg) 이상 지역으로 구분하여 하천퇴적토 및 농경지 토양에 대한 오염지도를 자성하였다. 오염지도 결과로부터, 오염 토양을 복원하기 위한 복원 목표를 토양오염우려기준 농도 이상, 우려기준의 40% 농도 (토양오염확인기준 농도)이상, 배경치 농도 이상으로 구분하여 설정하는 경우에 해당되는 토양 복원 면적과 물량을 산출하였다. 토양오염우려 기준 농도 이상의 경우 총 복원 면적과 물량은 264,000$m^2$, 79,200$m^3$이였으며, 우려기준의 40% 농도 이상의 경우 복원 면적과 물량은 779,000$m^2$, 233,700㎥, 배경치 농도 이상의 복원 목표 설정의 경우에는 각각 969,200$m^2$, 290,760$m^3$ 이였다. 토양오염 우려기준 농도의 40%를 복원 목표로 하는 경우와 배경치 농도를 복원 목표로 하는 경우, 복원 물량은 우려기준 농도를 복원 목표로 하는 경우의 3.0배와 3.7배정도 증가하는 것으로 나타나 복원 목표치 설정시 우려기준 농도의 40%와 배경농도의 차이에 다른 복원 물량의 차이는 적어서, 복원 목표 설정시 배경치 농도로 복원계획을 세우는 것이 가장 바람직한 것으로 판단되었다.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 2005년도 INTERNATIONAL SYMPOSIUM ON SOIL & GROUNDWATER ENVIRONMENT
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• pp.254-256
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• 2005

• 대한원격탐사학회지
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• 제38권4호
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• pp.365-374
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• 2022

Mining activity causes environmental pollution and geological hazards such as ground subsidence or landslide of which continuous monitoring is necessary. In this study, the activity on the Fushun West Open-Pit Mine (FWOPM), one of the largest open-pit coal mines in Asia located in Fushun, Liaoning Province, China, was analyzed by using a time-series Sentinel-1 InSAR coherence dataset. By using the difference between the two Digital Elevation Models (DEM) of the area, it was possible to confirm that there was a stockpiling activity in the western area of the FWOPM while excavation activity in the eastern area. By using RGB composite images using the yearly-averaged InSAR coherence images, the activity of the mine was confirmed by period, which was confirmed by Google Earth optical images. As a result, it was possible to confirm three landslides and the related activities on the northwest slope and the dumping activity on the west slope of FWOPM.

• 한국지하수토양환경학회지:지하수토양환경
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• 제18권1호
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• pp.85-93
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• 2013

This study is conducted to evaluate the leaching of contaminants from mine tailing by natural water and finally to estimate the leaching and transportation of heavy metal contaminants by rainfall. In order to identify contaminated heavy metal of soil, 17 soil, 2 tailing and 2 waste dump and 2 control samples were taken at mine area and analyzed total metal contents. The leaching experiments were conducted using distilled water. Cu, Pb, Zn was extracted from the reddish mine tailing in a short period time, especially the extraction rate of Cu (45.0%) was highest. The contaminants were leached from the yellowish mine tailing within an hour and the leaching rate of Cd (42.0%) and Zn (17.2%) were relatively high. The reddish soil from the waste dump showed leaching of Cu (5.1%), Pb (4.0%) and Zn (3.3%), however the leaching rate was low except Mi (14.2%). From the yellowish soil sampled from the dumping site, the leaching of Cu (8.2%) and Ni (9.7%) was high while the leaching of Zn (0.2%) were relatively low.

• 기술사
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• 제45권4호
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• pp.47-56
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• 2012

석탄합리화정책에 따라 많은 가행 광산들이 폐광을 하게 되고 이러한 폐광산들이 오랜 기간동안 방치되면서 폐광주변에는 지반침하, 침출수배출, 경관 훼손등의 환경오염을 수반하게 된다. 정부차원에서 여러 환경오염 방지대책이 진행중이나 이러한 환경오염 방지대책은 대부분 생태보호적인 관점에서 관심의 대상되어 왔고 우리가 이용하는 사회 인프라시설에 대한 영향은 상대적으로 소홀히 되어 왔다. 광산은 대부분 산악에 위치하며 이러한 위치조건상 폐광산 주변 중요 인프라시설로는 터널이 있을 수 있다. 이에 본 논고에서는 폐광산의 대표적 오염원인 광산폐수가 주변의 공용중인 터널에 미치는 영향의 종류와 사례에 대해 소개하였다.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 2003년도 총회 및 춘계학술발표회
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• pp.149-155
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• 2003

Objectives of this research were to fractionate heavy metals in soil samples in the upper Okdong River basin and to assess the potential pollution index of each metal fraction. Soil samples were collected from cultivated land soils and analyzed for physical and chemical properties. pH of cultivated soils ranged from 5.2 to 7.6. Contents of total kelhaldal nitrogen and loss on ignition were in the ranges of 0.6∼2.5%, and 1.9∼12.9%, respectively. Heavy metals in the cultivated land soils were higher in the abandoned closed coal mine near field soils than those in the paddy soils. Total concentrations of metals in the cultivated land soils were in the orders of Zn > Pb > Ni > Cu > Cd, exceed the corrective action level of the Soil Environment Conservation Law and higher than the naturals were abundance levels reported from uncontaminated cultivated land soils. Mobile fractions of metals were relatively small compared to the total concentrations. Soil Pollution Assesment Index(SPAI) values of each fraction of metals were leveled from Non polluted to Moderately polluted based on total concentrations. SPAI values of mobil fractions were lower than those of immobile fractions. Results on metal fractions and SPAI values of the cultivated land soils indicate that field soils samples were contaminated with heavy metals and had potential to cause a detrimental effects on plants. A prompt countermeasure to prevent field soils in the abandoned closed coal mine near fields are urgently needed.

• 한국지하수토양환경학회지:지하수토양환경
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• 제15권3호
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• pp.1-6
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• 2010

This study investigated the change of metal contamination levels according to amendment of enforcement regulation of the Soil Environmental Conservation Act in Korea. As an analytical result of 87 samples in abandoned metallic mine area, the extracted amount of As, Pb and Cu with aqua regia was 4.3~29.6 times higher than that with hydrochloric acid extraction and the number of samples, which contamination levels were found to exceed soil contamination standards, was also increased. On the other hand, in case of Cd, Zn, and Ni, the number of samples, which contamination levels were found to exceed soil contamination standards, was decreased or similar. These results can be used as a preliminary material in comparison between the soil pollution data accumulated previously and the data obtained by the revised standard method for the examination of soil pollution.

• 자원환경지질
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• 제31권3호
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• pp.223-233
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• 1998

The environments in the vicinity of the Dalseong mine has been much contaminated by heavy metals related to CuW ore deposit, which is of hydrothermal pipe type mineralized by quartz monzonite in the andesitic rocks. Chalcopyrite and wolframite are major ore minerals and sphalerite, galena and others are associated. To investigate the contamination of heavy metals in plants, samples of plants and soils were analysed by ICP for Fe, Mn, Cu, Pb, Zn, Ni, Co, Cd and Cr. Most of ore-related heavy metals are anomalously high in plants and soils, which were contaminated by the development of Taehan Tungsten Mining Company. The mine produced 48,704 tons (M/T) of 4 wt.% Cu and 1,620 tons (S/T) of 70 wt.% of $WO_3$ during active mining activity from 1961 to 1971 but was closed in 1975. Wild plants growing at the mine area may be used to remove heavy metals form soils, which cause contaminations of plants, stream waters and groundwaters in the vicinity of the mine.

• 자원환경지질
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• 제28권3호
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• pp.221-229
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• 1995

The heavy metal contents and their dispersion patterns in stream water, stream sediments, land plants and aquatic larvae collected from the hydrologic system flowing via the wasted ore dump of the Moak Au-Ag mine were investigated systematically in order to evaluate the environmental impacts of the abandoned metal mine. The heavy metal content increases abruptly in the vicinity of the wasted ore dump, then attenuated with increasing distance from the mine area. Attenuating rates were stream water > stream sediments > land plants > aquatic larvae. On the other hand, the cumulative content of heavy metals was stream sediments >aquatic larvae > land plants > stream water. Each element tends to be enriched selectively according to media; Zn > Cu > Cd > Pb in stream water, Zn > Pb > Cu > Cd in stream sediments and land plants, and Zn > Cu > Pb > Cd in aquatic larvae. These results show that the degree of enrichment and dispersion of pollutant extruded from the wasted ore dump are different according to elements and media, and that the circulation system of materials of each medium is different. The heavy metals, especially Cu, Pb and Zn, of polluted downstream sediments occur in high proportions of Fe-Mn oxides and organic bounded forms, which show high potential of a secondary pollution source. The content of heavy metals and their dispersion patterns in stream sediments are different from those of ten years ago; pollution levels of heavy metals were degraded in various ranges. The Zn and Cu-polluted areas were widened whereas Fe and Pb-polluted areas were reduced. In crops collected from the farm lands in downstream area, the pepper was more concentrated in all heavy metal than rice. The pepper showed some contaminated level in Cu(9.7ppm) and Zn(149ppm), and the rice in Zn(90ppm). However, both crops showed no significant level in Cd(<0.2ppm) and Pb(<0.5ppm).

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 2005년도 총회 및 춘계학술발표회
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• pp.397-401
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• 2005

Acid mine drainage and waste of abandoned mine area have caused serious water pollution and destruction of an ecosystem because of exposing to environment without an appropriate treatment. Gwang-yang mine area also has a serious problem in the nearby residential area and waterway ecosystems. The objectives of this research are to develop the most suitable remediation system for acid mine drainage by using waste materials, and to diagnose stream environments impacted by acid mine drainage through the new ecological health assessment methodology, and thus ultimately providing a restoring methodology to mining regions. In the water system health assessment, the result of ESHI model, RBP and Karr suggested by US EPA is revised by ecological features of our country, come to ESHI score 13; 'Very poor' at some points. Together with pH value and heavy metal concentration, it's the aggravation of ecological health index caused by chemical disturbances. In the acid mine drainage treatment, we apply marine shells and slags to this system. Slags had the best removal ability for heavy metals, but pH value was more than 10 exceeding the standard for drain water. In case of marine shells, pH of treated water maintained 7 to 8, and concentrations of Fe and Zn decreased significantly after treatment.