广东梅州浸矿细菌的选育及对金属硫化矿的浸出  

Breeding of a strain YS-1 from Meizhou,Guangdong provance and its bioleaching trials for metal sulfides ores

作　　者：何环[1] 夏金兰[1] 彭安安[1] 邱冠周[1] 

机构地区：[1]中南大学生物冶金教育部重点实验室资源加工与生物工程学院,湖南长沙410083

出　　处：《材料研究与应用》2007年第3期182-186,共5页Materials Research and Application

基　　金：国家创新群体基金资助项目(50621063);国家重大基础研究项目"973"(2004CB619204)

摘　　要：从中国南方典型矿区——广东梅州玉水生物提铜示范基地酸性矿水中分离得到一株金属硫化矿浸出微生物YS-1.对菌株YS-1的形态、生理生化特征、16S rDNA种系序列以及对黄铁矿和铁闪锌矿的浸出等进行了研究.结果表明：细菌长1.0～2.5μm,直径0.4～0.6μm,能运动,革兰氏染色显阴性,最适宜生长的pH和温度分别为2.0和30℃,能利用亚铁盐、单质硫和硫代硫酸钠,不能利用有机能源,与嗜酸氧化亚铁硫杆菌的16S rDNA种系序列同源性达到98%,对铁闪锌矿和黄铁矿的浸出率分别为14.38%和3.8%.A strain named YS-1 was isolated from the acidic water of Meizhou Yushui copper mine of Gunadong province. The morphology, physiological and biochemical characteristics, 16S rDNA phylogenetic sequence, as well as leaching pyrite and sphalerite of this strain were studied. The results showed that strain YS-1 was Gram negative and rob-shaped in （1.0-2.5） × （0.4-0.6） μm, and mobile, and the optimum pH and temperature for its growth were 2.0, and 30℃, respectively, it was able to grow in the liquid medium with Fe^2＋ , SO or thiosulfate, but failed to make use of organic energy source, it had 98% of alignments similarity with Acidithiobacillus ferrooxidans, and the leaching rate for sphalerite and pyrite by this strain were 14.4% and 3.8%, respectively.

关 键 词：浸矿细菌选育 金属硫化矿 生物浸出 

分 类 号：TF18[冶金工程—冶金物理化学] Q939.97[生物学—微生物学]