• 제목/요약/키워드: mines located

검색결과 72건 처리시간 0.023초

전라남도 광산 주변에서 수확한 농산물 충의 중금속 및 미량금속 함량 조사 - 영암, 보성, 곡성, 여천군을 중심으로 - (A Study on Contents of Heavy and Trace Metal of the Agricultural Products around Mines Located in Chollanam-Do - with Yeongam, Boseong, Gokseong, Yeocheon Gun in the Center -)

  • 박정숙;이미경
    • 한국식품영양학회지
    • /
    • 제15권1호
    • /
    • pp.64-69
    • /
    • 2002
  • To know a degree of pollution in agricultural products cultivated around 4 unworked mines located in Chollanam-Do, we investigated a concentration of heavy metal and 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 2001 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 content were detected N.D. ∼ 0.029 lpm but most of same)leE were not detected. Cd contents were detected N.D∼0.124 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 3.070 ∼ 7.825 ppm in bean, the Mn were 3.688 ∼23.935 ppm in lettuce ailed the Zn were 5.690 ∼21.171 ppm in bean, respectively.

전라남도 광산 주변에서 수확한 농산물의 미량금속 조사 (A Study on Contents of Trace Metal of the Agricultural Products around Mines Located in Chollanam-Do)

  • 박정숙;김충모;이미경
    • 한국식품영양학회지
    • /
    • 제14권2호
    • /
    • pp.132-137
    • /
    • 2001
  • 폐금속 광산 주변 경작지의 농산물에 대해 오염 실태를 파악하고 폐광산에 의한 오염방지 및 사후관리 대책 수립에 필요한 기초자료를 제공하기 위하여 전남지역에 분포한 광산지역 (4개 지역)을 대상으로 주변 경작지에서 7종의 농산물(상치. 양파, 감자, 무, 고추, 호박, 콩) 28건에 대해 미량금속 함유량을 조사하였으며 광산 지역별로 비교 검토하였다. 수은의 경우, 대부분의 검체에서 불검출이었으며, 일부 농산물에서 0.01 ppm이하의 양이 검출되었다. 비소는 28건의 시료중 7건에서 0.011∼0.038 ppm이 검출되었으며, 나머지 시료는 거의 불검출이었다. 납은 미량이지만 모든 검체에서 다양하게 검출되었고, 함유량은 N.D.∼0.176 ppm이었으며, 카드뮴은 거의 모든 시료에서 검출되었으며(N.D.∼0.101 ppm), 수은, 비소. 납, 카드뮴 등의 함유량은 오염된 수준이 아닌 자연 함유량 수준으로 판단된다. 구리의 경우 두류인 콩에서 4.356∼10.624ppm으로 타시료에 비해 높은 함유량을 나타냈으며, 광산 지역간에는 큰 차이를 보이지 않았다. 망간은 상치 (4.332∼24.385 ppm)가 가장 높은 함유량을 보였으며, 아연의 경우 콩과 상치, 고추에서 높은 함유량을 나타냈다.

  • PDF

긴급제언 - 광산폐수에 의한 터널라이닝 손상사례 연구 (A Case Study on Damage of The Tunnel Lining by Mine Waste Water)

  • 이유석;오영석
    • 기술사
    • /
    • 제45권4호
    • /
    • pp.47-56
    • /
    • 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.

  • PDF

Assesment of soil pollution by Abandoned Mines wastes

  • Kim Hee-Joung;Yang Jae-E.;Lee Jai-Young;Park Beang-Kil;Kong Sung-Ho;Jun Sang-Ho
    • 한국지하수토양환경학회:학술대회논문집
    • /
    • 한국지하수토양환경학회 2005년도 총회 및 춘계학술발표회
    • /
    • pp.363-370
    • /
    • 2005
  • There are approximately 2,000 metallic mines which have been abandoned in Korea. Most of the mines are located in the watershed area, which is main source of drinking water for Seoul Metropolitan area. Untreated mining wastes are remained around abandoned mines in study area. These mining wastes, flowing into farmland and stream in the downstream of abandoned mines, would cause water and soil pollution. The mining waste samples from Guedo mine, Manjung mine and Joil mine recently abandoned were collected for the evaluation of the potential of water pollution by mine waste. Index of geoaccumulation($M\"{u}ller$, 1979), fractional composition and removal efficiency of some heavy metals by different concentration of HCl treatment were analyzed. Index of geoaccumulation of Cd, Pb, Zn, Cu, Ni and Cr are 6, $4{\sim}6,\;0{\sim}6,\;4{\sim}5$, 2 and 0 respectively. Index of geoaccumulation of Cd, Pb, Zn and Cu reveals the mining wastes has high pollution pottential in the area. Organic fraction of Cu, reducible fraction of Pb, residual fraction of Ni and Zn were the most abundant fraction of heavy metals in mining wastes.

  • PDF

폐광산주변 토양의 환경영향해석을 위한 수학적 접근 (Mathematical Approach for Environmental Impact Analysis of Soils from Abandoned Mines)

  • 김광태;강미아
    • 지질공학
    • /
    • 제18권3호
    • /
    • pp.297-302
    • /
    • 2008
  • 폐광산 인근의 토양과 광미에서 발생하는 오염원은 중금속과 강산성의 배수가 주요한 원인물질이다. 이러한 오염원들은 인근의 토양까지 오염이 확산되어 결국 사람에게 건강상 유해성을 나타낸다. 본 연구에서는 중금속 오염이 심각한 폐광산을 대상으로 이들의 관리를 최적화하기 위해 요구되는 중금속 오염수준예측을 위한 수학적 접근방법을 시도하였다. 이를 위해 폐광산으로부터의 거리와, pH 및 산화환원전위(ORP)의 경시변화를 조사하여 이들의 상관성을 방정식으로 도출하였다. 대상으로 한 폐광산에 따라 다소의 차이는 보였으나, 60일간의 실험기간동안 변화되는 pH와 ORP는 초기의 pH와 ORP를 기준으로 할 때, 변화율이 $0.95{\sim}1.03$의 범위로 나타났다. 이것은 초기의 pH와 ORP를 기초로 폐광산 인근의 토양에서 발생하는 중금속류의 용출정도를 예측하여 환경영향평가를 실시할 수 있음을 시사하며, 이러한 접근방법은 다른 폐광산에도 적용할 수 있으므로 제거 또는 제어 대상인 중금속류의 관리에 유용하게 사용될 것으로 기대한다.

폐금속 광산의 유형별 오염특성에 관한 연구 (Study on the Contamination Characteristics of Pollutants at Various type of Abandoned Metal Mines)

  • 이종득;김태동;김선구;김휘중
    • 한국지하수토양환경학회지:지하수토양환경
    • /
    • 제18권3호
    • /
    • pp.93-108
    • /
    • 2013
  • This study is aimed to prepare the effective detail survey methods(Phase II) of abandoned metal mines through the contamination assessment for mine types and facilities in the abandoned metal mine areas. The study sites of 12 abandoned mines are located in Gyeonggi-do and Gangwon-do and those were chosen among 310 sites that the Phase II survey was conducted from 2007 to 2009 after considering the results of Phase I for abandoned mines scattered all over the country. 12 study sites were classified into four types; Type I sites only have pit mouth. Type II sites have pit mouth and mine-waste field. Type III sites have pit mouth and tailing sorting field. Type IV sites have pit mouth, tailing sorting field and concentrator(s). In forest land, paddy soil and farm land of Type I, As and Cd were showed average concentration, and Cu and Pb were high on the pit mouth area in one mines where the pit mouth was developed within 500 m. In the mines of Type II, Cu and Pb were showed average concentration too, but As and Cd were slightly high in pit mouth and mine-waste field. The mines of Type III which had grinding particle process through physical separation milling or hitting showed similar tendency with Type II. However, mines of Type IV pit mouth, mine-waste field and showed various results depending on defining the contamination sources. For example, if contamination source was pit mouth, the mixed results of Type I, II, II were showed. In tailing sorting field which was regarded as the most important source and having high mobility, however, if there were no facilities or it was difficult to access directly, field sampling was missed occasionally during phase I and phase II survey. For that reason, the assessment for tailing sorting field is missed and it leads to completely different results. In the areas of Type I mines, the concentration of heavy metals exceeded precautionary standards of soil contamination or not within 1,000 meters of pit mouth. Nickel(Ni) was the largest factor of the heavy metal contamination in this type. The heavy metals except Arsenic(As) were shown high levels of concentration in Type II areas, where pit mouth and mine-waste field were operated for making powder in upriver region; therefore, to the areas in the vicinity of midstream and downstream, the high content of heavy metals were shown. The tendency of high level of heavy metals and toxic materials contained in flotation agent used during sorting process were found in soil around sorting and tailing field. In the abandoned-pit-mouth area, drygrinding area and tailing sorting field area, the content of Cupper(Cu) and Zinc(Zn) were higher than other areas. Also, the contaminated area were larger than mine reclamation area(2,000 m) and the location of tailing sorting field was one of the important factors to estimate contaminated area.

Assessment of Water Pollution by the discharged water of the Abandended Mine

  • Kim, Hee-Joung;Yang, Jae-E.;Lee, Jai-Young;Park, Beang-Kil;Choi, Sang-Il;Jun, Sang-Ho
    • 한국지하수토양환경학회:학술대회논문집
    • /
    • 한국지하수토양환경학회 2004년도 총회 및 춘계학술발표회
    • /
    • pp.167-174
    • /
    • 2004
  • Several metalliferous and coal mines, including Myungjin, Seojin and Okdong located at the upper watershed of Okdong stream, were abandoned or closed since 1988 due to the mining industry promotion policy and thus disposed an enormous amount of mining wastes without a proper treatment facilities, resulting in water pollution in the downstream areas. AMD and waste effluents from the closed coal mines were very strongly acidic showing pH ranges of 2.7 to 4.5 and had a high level of total dissolved solid (TDS) showing the ranges of 1,030 to 1,947 mg/L. Also heavy metal concentrations in these samples such as Fe, Cu, Cd and anion such as sulfate were very high. These parameters of AMD and effluents were considered to be highly polluted as compared to those in the main stream area of the Okdong river and be major pollutants for water and soil in tile downstream area. Pollution indices of the surface water at the upper stream of Okdong river where AMD of the abandoned coal mines was flowed into main stream were in the ranges of 16.3 to 47.1. On the other hand, those at the mid stream where effluents from tailing dams and coal mines flowed into main stream were in tile ranges of 10.6 to 19.5. However, those at the lower stream were ranged from 10.6 to 14.9 These results indicated that mining wastes such as AMD and effluents from the closed mines were tile major source to water pollution at the Okdong stream areas.

  • PDF

항공레이저측량 데이터를 이용한 노천광산 생태복원 모니터링 (Ecological Restoration Monitoring of Open-Pit Mines using Airborne Laser Scanning)

  • 이현직;양승룡;이규만
    • 대한공간정보학회지
    • /
    • 제16권4호
    • /
    • pp.101-107
    • /
    • 2008
  • 자연적 경관이 빼어난 지역에 위치한 석회석 노천광산의 경우 친환경생태학적 개발 및 복원에 대한 요구가 증대됨에 따라 각종 환경 및 경관 관련 민원이 지속적으로 야기되고 있다. 따라서 본 연구에서는 백두대간에 위치한 석회석 노천광산을 대상으로 항공레이저측량과 지상레이저측량을 융합하여 대상지역의 지능형국토정보 구축을 수행함으로써 대상지역의 석회석 채광으로 인한 지속적인 모니터링 방안을 정립하고, 고품질 지형정보를 통한 각종 환경 관련 문제 및 복원계획의 합리적인 추진에 기여하고자 한다.

  • PDF

폴리머 콘크리트를 이용한 조명등 디자인에 관한 연구 (A Study Lighting Design Using Polymer Concrete)

  • 한기웅
    • 한국조명전기설비학회:학술대회논문집
    • /
    • 한국조명전기설비학회 2000년도 학술대회논문집
    • /
    • pp.25-29
    • /
    • 2000
  • Nowadays, natural resource are running out and the level of the environment contamination is getting serious. To solve these problems, each country and institute tend to need many-sided researchs and developments. At this point, especially, there are many coal-mines in Jung-sun and Tae-back where are located in Kangwon province. By the way the abandoned mines cause not only local economy collapse but also environment contamination by submergence of stony mountains. The counterplan is positively inquired further examination by the government. Consequently, we hope that the recycle of polymer concrete can reduce the environment contamination, suggest the new direction of Green Design and can be switched over high added value goods. In conclusion, the recycle of polymer concrete will be valuable.

  • PDF

남한지역 탄전별 광산배수의 특성에 관한 연구

  • 지상우;이상훈;이현석;유상희;강희태;김선준
    • 한국지하수토양환경학회:학술대회논문집
    • /
    • 한국지하수토양환경학회 2003년도 총회 및 춘계학술발표회
    • /
    • pp.389-392
    • /
    • 2003
  • Coalfields in Korea have been grouped into thirteen based on mainly geographycal and geological structure, ten out of which have been developed. To classify the phisico-chemical characteristics of mine drainage from each coalfield and, if possible, to clarify the intrinsic reasons of them. Sampling of waters from 59 mines in eight coalfields has been carried out. Higher pH of drainage water from the mines of the Cungchung coalfield belong to the Beading system, Mesozoic era than those belong to the Pyungan system, Proterozoic era is due to the low content of sulfides of neighboring strata. The drainage from coal beds overlying limestone bed mostly show high pH. Waters from the Gangrung and Samchuck coalfields coal beds are located within black shale formation which contains a lot of sulfides showed mostly very high metal and S $O_{4}$$^{2-}$ concentrations.

  • PDF