一株氧化亚铁硫杆菌的系统进化分析及其浸矿效果研究  

System Phylogenetic Analysis of an Acidithiobacillus Ferrooxidans Stains and Its Bioleaching Efficiency

作　　者：张兰兰[1] 邹平[2] 魏云林[1] 张文彬[1] 雷霆[2] 林连兵[1] 

机构地区：[1]昆明理工大学生物工程技术研究中心,云南昆明650224 [2]云南冶金集团总公司技术中心,云南昆明650031

出　　处：《矿冶工程》2008年第4期77-80,共4页Mining and Metallurgical Engineering

基　　金：云南省自然科学基金项目(2005E0068M)

摘　　要：从低品位黄铜矿浸矿菌液中分离到14株嗜酸、亚铁离子氧化菌株,并对菌株进行了Fe2+氧化率及其对低品位黄铜矿铜浸出率的测定。实验表明,YK12菌株的氧化活性最高,对该菌株进行系统进化分析表明,该菌株与分离自德国某废铀矿堆中的Acidithiobacillus ferrooxidans D2菌株(嗜酸氧化亚铁硫杆菌)相似性最高,可鉴定为嗜酸氧化亚铁硫杆菌菌株(Acidithiobacillus ferrooxidans)。Fourteen acidophilic, ferrous ions oxidation strains were isolated from a low-grade chalcopyrite bioleaching culture, and the oxidation rate of Fe^2＋ and bioleaching rate of low-grade chalcopyrite were determined. The results show that strain YK12 has the highest oxidation activity. System phylogenetic analysis showed that strain YK12 is similar to strain Acidithiobacillus ferrooxidans D2 which was isolated from some waste uranium stockpile in Germany, and YK12 is identified as an Acidithiobacillus ferrooxidans strain.

关 键 词：生物冶金 嗜酸氧化亚铁硫杆菌 系统进化分析 FE^2+ 氧化率 低品位黄铜矿 

分 类 号：TF18[冶金工程—冶金物理化学]