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, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China) Abstract: When the other nutrients were sufficient in the culture of Thiobacillus ferrooxidans, the impact of the different initial Mg2+ concentration on the activity of the growth of Thiobacillus ferrooxidans was studied, and the bacterial growth curves were obtained at different magnesium ion concentrations......
and absence of Acidthiobacillus ferrooxidans ZHAO Kai-le1, 2, GU Guo-hua1, LI Shuang-ke1 (1. School of Resources Processing and Bioengineering, Central South University, Changsha 410083, China; 2... of Acidthiobacillus ferrooxidans in acidic growth media was investigated.The results show that elemental sulfur is the major secondary mineral formed during oxidation of pyrrhotite, which covers......
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......
Effect of pH values on the extracellular polysaccharide secreted by Acidithiobacillus ferrooxidans during chalcopyrite bioleachingRun-lan Yu1,2,Jing Liu1,2,Jian-xi Tan3,Wei-min Zeng1,2,Li-juan... on the extracellular polysaccharide secreted by Acidithiobacillus ferrooxidans was investigated in different phases of bacterial growth during chalcopyrite bioleaching. It is found that extracellular polysaccharide......
2019; accepted 6 April 2020 Abstract: The effects of visible light and Cd2+ ion on chalcopyrite bioleaching in the presence of Acidithiobacillus ferrooxidans (A. ferrooxidans) were studied by scanning...% with visible light and 50 mg/L Cd2+. The results of chemical leaching showed that visible light can promote the circulation of iron. SEM results showed that Cd2+ promoted the attachment of A. ferrooxidans......
to Acidithiobacillus ferrooxidans (A.f) strain WJ12, and the type strain ATCC23270 with 99.93% sequence similarity. There is only one in coding sequence (CDS) and the same protein sequence. The copper concentration is 60 mg/L while the control is only 10 mg/L after 27 d. This bacteria can be used to leach chalcopyrite in industry application. Key words: Acidithiobacillus ferrooxidans; bioleaching; Iro......
不同光波长下天然闪锌矿光催化作用对Acidithiobacillus ferrooxidans生长的影响王鑫,李艳,鲁安怀,王长秋北京大学造山带和地壳演化教育部重点实验室地球与空间科学学院摘 要:<正>自然界中部分金属氧化物与金属硫化物矿物具有天然半导体特性(鲁安怀,2003).在地表系统中,这些矿物的半导体特性可将太阳光能转化为微生物所能利用的化学能,从而促进非光合微生物的生长代谢(Lu等,2012).已有研究表明通关键词:......
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喷淋塔中固定化Acidithiobacillus ferrooxidans对Fe2+的生物氧化特性研究王传凯,李响,张永奎,谢通慧,杨坤四川大学化学工程学院摘 要:为了增大嗜酸氧化亚铁硫杆菌细胞密度以提高其对Fe2+的氧化速率,利用泰勒花环填料为载体,在喷淋塔中固定嗜酸氧化亚铁硫杆菌,考察固定化细胞对Fe2+的生物氧化性能.采用扫描电子显微镜对载体表面进行形貌表征,X射线衍射仪和傅里叶红外光谱仪对填料表面沉淀进行成分分析.结果表明:在改良的9 K培养基中,嗜酸氧化亚铁硫杆菌被成功的固定在泰勒花环填料上,并伴有少量黄铵铁矾沉淀,这些沉淀和菌体细胞一起构成了生物反应系统的生物膜.嗜酸氧化亚铁硫杆菌在喷淋塔中完成固定化后,溶液初始pH值和温度是影响氧化速率的主要原因,其优化结果分别为2.25和34℃.在此条......
文章编号:1004-0609(2009)12-2237-06 阴离子对嗜酸氧化亚铁硫杆菌生长和硫氧化活性的影响 张成桂,张 倩,王 晶,张瑞永,何 环,夏金兰,邱冠周 (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,长沙 410083) 摘 要:以嗜酸氧化亚铁硫杆菌(Acidithiobacillus ferrooxidans, ATCC23270)为对象,研究几种阴离子(NO3-,SO42-,Cl-和PO43-)钾盐对Acidithiobacillus ferrooxidans生长和硫氧化活性的影响.结果表明:不同阴离子对Acidithiobacillus ferrooxidans硫氧化表观活性的影响效应不同,其影响由大到小的顺序依次为Cl-,NO3-,SO42-和PO43-；在高浓度PO43-的胁迫(300......
