• Journal of the Korea Organic Resources Recycling Association
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• v.21 no.3
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• pp.53-63
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• 2013

It is well known that problem for contaminated soil with heavy metals is mainly produced from agricultural land around abandoned metal mine and the cost to solve them is much higher than those of water and air pollution in addition, it takes much more time to clarify the contaminated soil. Until now, economical and practical many techniques to remediate contaminated soils with heavy metals have been developed and proposed. Therefore, in this study, characteristic, merit and weakness for various techniques which are developing and commercializing recently in domestic/foreign country will be reviewed.

• Proceedings of the Korean Society for Rock Mechanics Conference
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• 2006.03a
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• pp.51-60
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• 2006

• Proceedings of the KSEEG Conference
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• 2002.04a
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• pp.475-476
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• 2002

• Proceedings of the Petrological Society of Korea Conference
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• 2009.05a
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• pp.116-116
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• 2009

• Economic and Environmental Geology
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• v.37 no.1
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• pp.87-98
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• 2004

Tailings and contaminated soils from Cheongyang mine and Seobo mine have been analysed by ICP-AES from 5-step sequential extraction method of multielement determination on extraction solutions at each step. As and Co within tailings and contaminated soils from Cheongyang mine and Seobo mine are mainly in the residual phase. In case of Cd, Cu and Zn, the most dominant fraction for tailings of Cheongyang mine is the oxidizable phase, while tailings of Seobo mine is dominated by the residual phase. In contaminated soils from Seobo mine, the predominant fraction for Cd, Cu and Zn is the Fe-Mn oxide phase. The exchangeable fraction of Pb in tailings from Cheongyang mine and Seobo mine is relatively high compared with those of other metals; whereas Pb fraction in contaminated soils from Seobo mine is largely associated with the residual fraction.

• The Korean Journal of Food And Nutrition
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• v.14 no.2
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• pp.132-137
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• 2001

To know a degree of pollution in agricultural products cultivated around 4 unworked mines located in Chollanam-Do, we investigated a concentration of trace metal to provide the basic data for its residual limits. 28 samples of seven kinds of agricultural products (lettuce, onion. potato, radish, pepper. pumpkin, bean) collected from 4 unworked mines located in Chollanam-Do in 1999 were analyzed by Mercury Analyzer for mercury and Atomic Absorption spectrophotometer for Pb, As, Cd. Cu, Mn, and Zn. Hg contents were detected N.D. ∼trace level (0.01 ppm and less) and As contents were detected N.D. ∼ 0.038 ppm but most of samples were not detected. Cd contents were detected N.D∼0.101 ppm. The results of Hg, As, Pb and Cd content showed that for all the 7 species of agricultural products studied, none have accumulated levels dangerous enough to pose health problems. The average contents of Cu were 4.356∼10.624 rpm in bean. the Mn were 4.332∼24.385 ppm in lettuce and the Zn were 4.072 ∼ 20.715 ppm in bean, respectively.

• Journal of Soil and Groundwater Environment
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• v.14 no.1
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• pp.29-35
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• 2009

In this study, the effect of pH and temperature on the adsorption behavior of acid mine drainage (AMD) on coal mine drainage sludge (CMDS) has been investigated during the treatment of coal mine drainage (CMD) by electrical purification method. The pH$_{zero\;point\;charge}$ (pH$_{zpc}$) of CMDS was 5. The removal ratio of copper, zinc, cadmium, iron were increased according to the increase of pH value. The adsorption amount of copper showed 0.64 mg g$^{-1}$ sludge. It was independent of pH value. The adsorption amount of the other metals showed l.l times when pH was 3. The adsorption amount of chromium was a little bit increased at the pH value higher than 7 due to a small amount of the chromium was eluted as $Cr(OH)_6^{3-}$. The amount of metals' absorption were decreased according to temperature was increase at pH value was 3. The selectivity order was Cd>Fe > Zn > Cu. The amount of absorption showed q$_{max}$ Cu 2.747 mg g$^{-1}$ andZn 2.525 mg g$^{-1}$ when pH value higher than 5. It was independent of temperature.

• Proceedings of the KSEEG Conference
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• 2003.04a
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• pp.48-52
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• 2003

폐광된 금속광산의 폐광석 적치장, 선광시설, 광미장 등에는 폐광석과 황화광물의 분말이 그대로 방치되어 있어, 풍화작용에 기인된 황화광물의 산화과정에서 용해된 유해 중금속의 이동과 확산이 심각한 중금속 오염문제를 발생시키고 있다 그러므로, 황화광물의 산화작용에 의해 형성된 2차 광물에 대한 광물학적 연구는 유해 중금속의 물리$\cdot$화학적인 거동, 오염물질의 확산 등을 규제하고 있는 지구화학적 메카니즘 규명에 매우 중요한 자료가 되며, 폐광석 및 광미에 대한 복원 결정을 내리는데 있어 결정적인 판단 자료가 될 수 있다 (강민주, 2003). (중략)

• Journal of the Korea Organic Resources Recycling Association
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• v.5 no.1
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• pp.71-85
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• 1997

There are approximately 500 abandoned mining sites in Korea. Abandoned mines cause various environmental and safety problems such as landscape damage, soil, groundwater and stream pollution by heavy metal, acid mine drainage and soil erosion. According to the survey, there are significant numbers of mines causing environmental problems in Korea. For a environmentally sound management of abandoned mines, the Soil Pollution Control Act should include the regulation concerning soil pollution and recovery standards of the abandoned mines. Also, comprehensive survey about abandoned mines, setting-up of tile recovery priority, finance for clean-up are necessary.

• Journal of the Mineralogical Society of Korea
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• v.28 no.4
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• pp.309-323
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• 2015

This study was initiated to propose the method for human risk assessment suitable to metal mine area. Using a variety of exposure parameters extracted from the investigation of abandoned metal mines, the proposed method was applied to assess the risk of As and heavy metal contamination for inhabitants (male and female adults and child) within an abandoned mine area. Based on the results of risk assessment, in addition, target remediation concentrations of each media (soil, groundwater, and surface water) were estimated. The results indicate that total carcinogenic risk (TCR) and hazard index (HI) representing carcinogenic and non-carcinogenic risks, respectively, were calculated to exceed the tolerable levels (1.00E-6 and 1) with regard to two exposure pathways (groundwater and crop intakes) and As. Thus, the human risk of study area was evaluated to be significant. Based on the target risk (TR) for carcinogens, the remediation concentrations of soil were computed to be 6.83~6.85 mg/kg and 18.41~18.46 mg/kg for As and Pb, respectively. In terms of target hazard index (THI) for non-carcinogens, the remediation concentrations of soil were calculated to be 17.38 mg/kg for Cu and 9.13 mg/kg for As.