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South University, Changsha 410083, China)Abstract:The bioleaching of pyrrhotite was investigated using Sulfobacillus thermosulfidooxidans. The effects of pH, pulp concentration, inoculation amount...; Sulfobacillus thermosulfidooxidans; jarosite......
on the bioleaching of chalcopyrite than on pyrite. Key words: extracellular DNA; Sulfobacillus thermosulfidooxidans ST; chalcopyrite; pyrite; confocal laser scanning; bioleaching Cite this article... thiooxidans, Leptospirillum ferrooxidans and Sulfobacillus thermosulfidooxidans. There have been many studies on the bioleaching mechanisms of sulfide minerals with a focus on reaction kinetics......
影响Sulfobacillus thermosulfidooxidans生长及亚铁氧化的因素研究 邓敬石1,阮仁满2 (1.昆明理工大学,云南,昆明,650093;2.北京有色金属研究总院,北京,100088) 摘要:在测定Sulfobacillus thermosulfidooxidans生长曲线的基础上,以Fe2+的氧化表征细菌的生长规律,考察了初始pH,接种量,初始Fe2+浓度对细菌生长及亚铁氧化的影响.实验结果表明,在混合营养条件下,初始pH1.6,接种量10%,初始Fe2+浓度50~100m mol/L适宜细菌的生长及亚铁的氧化. 关键词:Sulfobacillus thermosulfidooxidans; 生长; 亚铁氧化; [全文内容正在添加中] ......
Jarosite-type precipitates mediated by YN22, Sulfobacillus thermosulfidooxidans, and their influences on strain DING Jian-nan(丁建南), GAO Jian(高 健), WU Xue-ling(吴学玲), ZHANG Cheng-gui(张成桂), WANG... understanding on the properties of the jarosite-type precipitate synthesized by Sulfobacillus thermosulfidooxidans, the evolution of the S. thermosulfidooxidans-mediated precipitation and the influence......
Trans. Nonferrous Met. Soc. China 25(2015) 3103-3110 Bioleaching and electrochemical property of marmatite by Sulfobacillus thermosulfidooxidans Xian-xue XIONG, Guo-hua GU, Jin-rong BAN, Shuang-ke LI... because the higher temperature improved the dissolution of marmatite in sulphuric acid, and thus acidic leaching happened before ferric ion leaching. Sulfobacillus thermosulfidooxidans is a moderately......
with strain YN22, Sulfobacillus thermosulfidooxidans, shows that strain YNTC-1 has no evident influence on bioleaching rates of these two sulphide minerals. Key words: bioleaching; sulphide minerals... spring with the ferrous iron and sulfur oxidizing acidothermophile, strain YN22 of Sulfobacillus thermosulfidooxidans, and experiments for co- bioleaching of pyrite and chalcopyrite by mixing the two......
410083) 摘 要:为了探明混合浸矿微生物的耐氟特性及其群落动态,构建5株浸矿细菌(Acidithiobacillus ferrooxidans ATCC 23270, Leptospirillum ferriphilum YSK, Sulfobacillus thermosulfidooxidans ST, Acidithiobacills thiooxidans A01..., Sulfobacillus thermosulfidooxidans ST, Acidithiobacills thiooxidans A01, Acidithiobacills caldus S1) was constructed. The results show that the growth of the co-culture is inhibited by fluoride stress, and the co......
ferriphilum,Sulfobacillus acidophilus,Sulfobacillus thermosulfidooxidans等)浸出黄铜矿精矿,考察浸出液的pH,Eh及金属离子浓度并应用PCR-RFLP(限制性酶切片段长度多态性)方法研究细菌群落变化,浸出时间为30 d.研究结果表明:Cu的浸出率为26.2%,反应器内菌种多样性不丰富,只有At. caldus 和L... Mineral sample composition by energy spectrum analysis 本实验所用菌种主要为Acidithiobacillus caldus,Leptospirillum ferriphilum,Sulfobacillus acidophilus和Sulfobacillus thermosulfidooxidans等中度嗜热菌种的混合菌,纯菌菌株均由......
, then Sulfobacillus thermosulfidooxidans dominated from the 18th day to the end of bioleaching, while the abundance of Leptospirillum ferriphilum changed slightly. A higher solution potential within... (Acidithiobacillus caldus, Leptospirillum ferriphilum, Sulfobacillus thermosulfidooxidans) was used for the bioleaching of chalcopyrite, PCR-RFLP technique was used for the research of community......
难处理金矿预氧化高效嗜热菌的选育研究 宋永胜1,姚国成1,温建康1,阮仁满1 (1.北京有色金属研究总院矿物资源与冶金材料研究所,北京,100088) 摘要:采集南方某煤矿酸性矿坑水并从中选育分离出一株中等嗜热菌;利用分子生物学鉴定方法确定其为Sulfobacillus属, 典型种为Sulfobacillus thermosulfidooxidans. 将该菌株应用于黄铁矿单体矿物的氧化, 通过扫描电镜观察发现, 黄铁矿浸出前颗粒完整,结构致密, 经预氧化后, 结构疏松, 形成空洞和裂纹, 黄铁矿致密结构被破坏;经过16 d生物预氧化, 单体黄铁矿被氧化60%以上, 达到暴露单体金的目的. 试验结果表明该菌株是一株活性较高的高效嗜热浸矿功能菌. 关键词:嗜热菌; 难处理金矿; 选育分离; 浸矿功能菌; [全文内容正在添加中] ......