| Title | 저품위 동광석의 세균침출에 관한 연구 2 | ||
| Author | 이강순 · 민봉희 · 장정순 | ||
| Address | 원자력연구소 생물학연구실 | ||
| Bibliography | Korean Journal of Microbiology, 10(1),1-8, 1972 | ||
| DOI | |||
| Key Words | A study on Bacterial Leaching of Low-grade Copper Mineral (II); The physiological characteristics of Ferrobacillus ferrooxidans | ||
| Abstract | This experiment was carried out to investigate the physiological characteristics of isolated bacteria, Ferrobacillus ferooxidans from copper mine water in Korea. The results obtained were as follows ; 1. The optimum pH range for the growth of these bacteria was 2.0-3.0 and optimum temperature was 20℃-30℃. 2. The oxidation curves of ferrous iron to the ferric iron ran parallel with the growth curves. 3. The optimum nitrogen concentration was 400-800 ppm and the minimal flow rate of air for the maximal growth of the bacteria was 70 ml air/min./200ml medium. 4. The growth of these bacteria was inhibited by the absence of ferrous iron and by the addition of sulfur. 5. Ferrous iron at a concentration of 9000 ppm, appeared to be optimum for the most rapid growth of Ferrobacillus ferrooxidans. | ||
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