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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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This study was carried out to leach valuable metal ions from the mine waste ore using the adapted indigenous bacteria. In order to tolerance the heavy metals, the indigenous bacteria were repeatedly subcultured in the adaptation-medium containing $CuSO_4{\cdot}5H_2O$ for 3 weeks and 6 weeks, respectively. As the adaptation experiment processed, the pH was rapidly decrease in the adaptation-medium of 6 weeks more than the 3 weeks. The result of bioleaching with the adapted bacteria for 42 days, the pH value of leaching-medium in the 3 weeks tend to increased, whereas the pH of the 6 weeks decreased. In decreasing the pH value in the adaptation-medium and in the leaching-medium, it was identified that the indigenous bacteria were adapted $Cu^{2+}$ the ion and the mine waste ores. The contents of Cu, Fe and Zn in the leaching solution were usually higher leached in 6 weeks than 3 weeks due to the adaptation. Considering the bioleaching rates of Cu, Fe and Zn from these leaching solutions, the highest increasing the efficiency metal ion were found to be Fe. Accordingly, it is expected that the more valuable element ions can be leached out from the any mine waste, if the adapted bacteria with heavy metals will apply in future bioleaching experiments.
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참고문헌 (49)
참고문헌 신청
박천영 / 2011 / 16S rRNA 염기서열을 이용한 고성, 연화 및 일본 토착호산성박테리아 동정 / 한국지구시스템공학회 :18~20
위대웅 / 2011 / 적용효과에 따른 페광석으로부터 생물학적 용출 향상 / 한국지구시스템공학회지 추계학술발표회 :21~23
Ahonen, L. / 1986 / The role of pyrrhotite and pyrite in the bacterial leaching of chalcopyrite ores, In Fundamental and Applied Biohydrometallurgy / Elsevier :13~22
Astudillo, C. / 2008 / Adaptation of Sulfolobus metallicus to high pulp densities in the biooxidation of a flotation gold concentrate / Hydrometallurgy 92:11~15
Attia, Y.A. / 1989 / Bioleaching of gold pyrite tailings with adapted bacteria / Hydrometallurgy 22:291~300
위대웅 / 2011 / 적용효과에 따른 페광석으로부터 생물학적 용출 향상 / 한국지구시스템공학회지 추계학술발표회 :21~23
Ahonen, L. / 1986 / The role of pyrrhotite and pyrite in the bacterial leaching of chalcopyrite ores, In Fundamental and Applied Biohydrometallurgy / Elsevier :13~22
Astudillo, C. / 2008 / Adaptation of Sulfolobus metallicus to high pulp densities in the biooxidation of a flotation gold concentrate / Hydrometallurgy 92:11~15
Attia, Y.A. / 1989 / Bioleaching of gold pyrite tailings with adapted bacteria / Hydrometallurgy 22:291~300
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