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冶金模式微生物Acidithiobacillus ferrooxidans表面质子吸附特性的研究周姗1,栗树珍1,钟慧2,贺治国11. 中南大学资源加工与生物工程学院生物冶金教育部重点实验室2. 中南大学生命科学学院摘 要:为了探究生物冶金过程及矿山酸性废水中的关键微生物Acidithiobacillus ferrooxidans的表面质子吸附机理,该研究通过酸碱滴定,ProtoFit模拟,电泳迁移率测定及傅里叶变换衰减全反射红外光谱法(ATR-FTIR)系统地揭示不同能源(S0,Fe2+,FeS2)和离子强度(0.001~0.1 mol/L NaNO3)对A.ferrooxidans表面性质的影响及参与质子化/去质子化反应的关键官能团.结果表明:三位点的Donnan壳静电模型能较好地适用于分析......
">The present work investigated microbial leaching of zinc from ore using Acidithiobacillus ferrooxidans (ATCC 14859). The ore samples, consisted of 13wt% zinc, were obtained from a gold mine in north-eastern... ferrooxidans can successfully leach zinc by as much as 6 times compared with the control experiment (without Acidithiobacillus ferrooxidans ferrooxidans). The maximum efficiency (92.3%) for microbial......
Trans. Nonferrous Met. Soc. China 24(2014) 1152-1160 Formation of jarosite and its effect on important ions for Acidithiobacillus ferrooxidans bacteria B. NAZARI1, E. JORJANI1, H. HANI1, Z. MANAFI 2... the precipitation of jarosite in the presence of Acidithiobacillus ferrooxidans bacteria. It was found that the maximum ferric precipitate occurred at a ferrous sulfate concentration of 50 g/L, a temperature of 32......
. Bioleaching tests at different dosages of pyrolusite ore, pH and inoculation amounts of Acidithiobacillus ferrooxidans were studied. The results showed that the time of the bio-oxidation process...; Acidithiobacillus ferrooxidans 1 Introduction Many sulfide gold ores contain various amounts of arsenic, often in the form of arsenopyrite, FeAsS[1]. For refractory, arsenic-bearing sulfide gold ores......
Acidithiobacillus ferrooxidans对黄铜矿和镍黄铁矿的浸出佟琳琳,杨洪英,张耀,张谷平东北大学材料与冶金学院摘 要:以黄铜矿和镍黄铁矿为研究对象,初步探讨了Acidithiobacillus ferrooxidans对黄铜矿和镍黄铁矿的浸出.结果表明:有细菌参与下,黄铜矿的浸出率是无菌体系浸出率的2.41倍;镍黄铁矿的浸出率是无菌体系浸出率的1.91倍,细菌在矿物的浸出过程中起到了很好的促进作用.浸出过程中会有黄色的黄钾铁矾(K[Fe3(SO4)2(OH)6])沉淀产生,黄钾铁矾附着在矿体表面,产生"钝化现象",严重阻碍矿物的氧化.关键词:黄铜矿;镍黄铁矿;细菌浸出;黄钾铁矾;钝化;......
J. Cent. South Univ. Technol. (2008) 15: 503-507 DOI: 10.1007/s11771-008-0095-7 Bioleaching of sphalerite by Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans cultured in 9K medium...; Abstract: Elective culture of Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans in 9K......
id="ChDivSummary" name="ChDivSummary">Two different types of chalcopyrite (pyritic chalcopyrite and porphyry chalcopyrite) were bioleached with Acidithiobacillus ferrooxidans ATF6. The bioleaching...Bioleaching of two different types of chalcopyrite by Acidithiobacillus ferrooxidansYing-bo Dong1,2,Hai Lin1,2,Kai-bin Fu2,Xiao-fang Xu1,2,Shan-shan Zhou1,21. Key Laboratory of High-Efficient Mining......
Dynamic corrosion of copper-nickel sulfide by Acidithiobacillus ferrooxidans TONG Lin-lin(佟琳琳), JIANG Mao-fa(姜茂发), YANG Hong-ying(杨洪英), YU Juan(俞 娟), FAN You-jing(范有静), ZHANG Yao... by Acidithiobacillus ferrooxidans. The changes of superficial corrosion appearance and the mineral dynamic corrosion process were discovered by microscope observation. Then, the galvanic cell model was established......
(ascorbic acid, oxalic acid, humic acid and citric acid) on chalcopyrite bioleaching in the presence of visible light were studied using Acidithiobacillus ferrooxidans (A. ferrooxidans). Four sets... scavenger; visible light; Acidithiobacillus ferrooxidans 1 Introduction As the most abundant copper sulfide mineral and primary copper resources, chalcopyrite has attracted extensive attention in copper......
Single and cooperative bioleaching of sphalerite by two kinds of bacteria--Acidithiobacillus ferriooxidans and Acidithiobacillus thiooxidans XIA Le-xian(夏乐先), LIU Jian-she(柳建设), XIAO Li(肖 利...; Abstract: A cooperative bioleaching (Acidithiobacillus ferriooxidans and Acidithiobacillus thiooxidans) and single bioleaching (Acidithiobacillus ferriooxidans or Acidithiobacillus thiooxidans......
