UO_2^(2+)对氧化亚铁硫杆菌生长活性的影响  

Effect of UO_2^(2+) on Growth and Activity of Thiobacillus Ferrooxdidans

作　　者：夏良树[1] 肖志海[2] 付仕福[2] 

机构地区：[1]中国科学院广州地球化学研究所,广东广州510070 [2]南华大学化学化工学院,湖南衡阳421001

出　　处：《湿法冶金》2006年第2期78-81,共4页Hydrometallurgy of China

摘　　要：研究了在温度30℃,pH 2．0的常用浸出条件下,UO_2^(2+)对氧化亚铁硫杆菌(T．f)生长活性的影响。结果表明,UO2^(2+)对氧化亚铁硫杆菌的生长活性有较大影响,具体表现在细菌生长的停滞期和对数期均较长,Fe^(2+)的氧化速度慢。在含一定浓度UO_2^(2+)的培养基中驯化的T．f菌,能耐受[UO__2^(2+)]为400～1200 mg/L,而且对Fe^(2+)的氧化速率加快。Effects of UO2^2＋ on growth and activity of thiobacillus ferrooxidans（T, f） at the condations of 30℃ and pH 2. 0 were studied. The experimental results show that UO2^2＋ affects obviously growth and activity of T. f. This meant that lag phase and logarithmic phase of T. f were longer and Fe^2＋ oxidation rate decreased in Leathen culture medium which UO2^2＋ concentration is 0. 4～ 1.2 g/L and T. f could tolerate higher concentration of UO2^2＋ after long perid of adaptation by repeated subculturing in the Leathen culture medium.

关 键 词：氧化亚铁硫杆菌 生长活性 UO22+ 影响 

分 类 号：TF18[冶金工程—冶金物理化学]