• 제목/요약/키워드: Keum-Jung mine

검색결과 3건 처리시간 0.017초

금정광산 주변 토양의 중금속 오염현황 및 그 처리 방안

  • 이기철;이승길;한인호;최광호;정덕영
    • 한국지하수토양환경학회:학술대회논문집
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    • 한국지하수토양환경학회 1998년도 공동 심포지엄 및 추계학술발표회
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    • pp.189-194
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    • 1998
  • Geochemical study was carried out to find out the distribution of metals and cyanide in soil in the vicinity of the abandoned Keum-Jung mine. Chemical analysis showed that content of As in soil around tailings exceeded 15mg/kg, Korean standard of soil contamination in the farm land. That means the contamination of soil by As is due to input of tailings. According to total decomposition of tailings, As was highly concentrated in tailings. However the water in tailings impoundment was changed to acidic and contaminated by metal and sulfate because the tailings in the top of the tailings impoundment had been oxidized. Acid mine drainage contaminated the water course in the vicinity of the paddy soils. The proper measures are required to prevent contamination of the soil and water in the vicinity of the Keum-Jung mine.

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금정광산 주변 토양의 중금속 오염현황 및 그 처리 방안 (Distribution of heavy metals in soils around the Keum-Jung mine and remediation)

  • 이기철;이승길;한인호;최광호;정덕영
    • 한국토양환경학회지
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    • 제4권1호
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    • pp.25-34
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    • 1999
  • 경북 봉화군에 소재한 폐광산인 금정광산의 광미장 및 인근 농경지를 대상으로 금속성분 분포특성을 파악하고 그 처리방안을 모색해 보았다. 토양오염 공정시험법에 의한 분석자료에 의하면 광미장 주변의 논 및 밭에서 As가 농경지 토양오염대책 기준인 15 mg/kg을 초과하여 광미의 유입에 의해 토양이 오염되는 것으로 나타났다. 광미중에는 As가 매우 높게 함유된 것으로 나타났고 특히 산화가 진행된 광미장 지표면 부근의 광미에는 이러한 성분이 용탈되어 산성침출수가 농수로 방류되고 있다. 따라서 토양오염 및 농수로의 오염의 확산 방지를 위해서는 광산주변에 산재하고 있는 광미 및 광미장에 대한 환경 오염방지 대책이 필요하다고 판단된다.

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Utilization of whole genome treasure for the library construction of industrial enzymes

  • Kim, Won-Ho;Cho, Kyoung-Won;Jung, In-Su;Choi, Keum-Hwa;Hur, Byung-Ki;Kim, Geun-Joong
    • 한국생물공학회:학술대회논문집
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    • 한국생물공학회 2003년도 생물공학의 동향(XIII)
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    • pp.815-820
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    • 2003
  • A huge database resulted from whole genome sequencing has provided a possibility of new information that is likely to extent the scope and thus changes the way of approach for the functional assigning of putative open reading frames annotated by whole genome sequence analyses. These are mainly realized by ease, one-step identification of putative genes using genomics or proteomics tools. A major challenge remained in biotechnology may translate these informations into better ways to screen or select a gene as a representative sequence. Further attempts to mine the related whole genes or partial DNA fragment from whole genome treasure, and then the incorporation of these sequences into a representative template, will result in the use of putative genes that can be translated into functional proteins or allowed the generation of new lineages as a valuable pool. Such screens enable rapid biochemical analysis and easy isolation of the target activity, thereby accelerating the screening of novel enzymes from the expanded library with related sequences. Information-based PCR amplification of whole genes and reconstitution of functional DNA fragments will provide a platform for expanding the functional spaces of potential enzymes, especially when used mixed- or metagenome as gene resources.

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