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NTIS 바로가기자원환경지질 = Economic and environmental geology, v.52 no.6, 2019년, pp.529 - 539
이민현 (미래자원연구원) , 김영훈 (안동대학교 환경공학과) , 김정진 (안동대학교 지구환경과학과)
In this study, heavy metal removal and precipitation characteristics with pH change were studied for artificial acid mine drainage. Artificial acid mine drainage was prepared using sulfates of iron, aluminum, copper, zinc, manganese which contained in acid mine drainage from abandoned mines. The sin...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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산성광산배수의 특징은? | 폐금속광산이나 석탄광산으로부터 생성되는 산성광산배수는 강한 산성을 나타낼 뿐만 아니라 다량의 Al,Fe, Mn, Zn, Cu, Pb 등의 금속이온과 SO42-를 포함하고 있다(Nordstrom et al., 2000; Bigham et al. | |
산성광산배수의 중금속을 제거하기 위해 가장 많이 사용되는 방법은? | 산성광산배수에 다량으로 포함된 중금속을 제거하기 위하여 pH를 상승시켜 침전 제거하는 방법을 가장 많이 사용한다. 이 방법은 pH 6. | |
pH를 상승시켜 침전 제거하는 방법에 필요한 것은? | 산성광산배수에 다량으로 포함된 중금속을 제거하기 위하여 pH를 상승시켜 침전 제거하는 방법을 가장 많이 사용한다. 이 방법은 pH 6.5 이상으로 높일 경우 중금속의 용해도가 낮아지는 특성을 이용한 것으로 다량의 알칼리를 유발하는 물질이 필요하다는 것이다(McDonald and Grandt, 1981). 산성광산배수가 유출되는 지역에서 백화현상과 황화현상을 발생시키는 침전물은 배사알루미나이트(basaluminite: Al4(SO4)(OH)10·4H2O)와 페리하이드라이트(ferrihydrite: 5Fe2O3·9H2O), 슈워트마나이트(schwertmannite: Fe8O8(OH)6(SO4)·nH2O)이며, 이들은 침전되는 pH 범위가 다르다(Sherriff etal. |
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