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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:......
文章编号:1004-0609(2012)05-1497-06 嗜酸氧化亚铁硫杆菌中锌离子转运基因的鉴定与分析 侯冬梅1,苗 博1,王洋洋1,张云静1,刘代刚1,吴学玲2 (1. 中南大学 资源加工与生物工程学院,长沙 410083; 2. 中南大学 教育部生物冶金重点实验室,长沙 410083) 摘 要:鉴定了Acidithiobacillus ferrooxidans...析 中图分类号:Q819 文献标志码:A Identification and analysis of zinc transport genes in Acidithiobacillus ferrooxidans HOU Dong-mei1, MIAO Bo1, WANG Yang-yang1......
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......
Mutagenic breeding of silver-resistant Acidithiobacillus ferrooxidans and exploration of resistant mechanism WU Xue-ling(吴学玲), QIU Guan-zhou(邱冠周), GAO Jian(高 健), DING Jian-nan(丁建南), KANG Jian(康 健...; Abstract: The silver-resistant Acidithiobacillus ferrooxidans were isolated from 22 acid mine drainage (AMD) samples collected from Dexing Copper Mine and Chengmen Mountain Mine......
-heng. Bioleaching of marmatite flotation concentrate by Acidithiobacillus ferrooxidans and Leptospirillum ferrooxidans [J]. Trans Nonferrous Met Soc China, 2004, 14(3): 569-575. [2] GARCIA M J... Ferrous ion oxidation by Thiobacillus ferrooxidans immobilized on activated carbon ZHOU Ji-kui(周吉奎)1, QIN Wen-qing(覃文庆)2, NIU Yin-jian(钮因健)2, LI Hua-xia(李花霞)1 1. Zhengzhou Research Institute......
; Abstract: Zeta potentials of pyrite and Acidithiobacillus ferrooxidans cultured by sulfur... towards that of Acidithiobacillus ferrooxidans; as bacterial concentration is increscent, this tendency is even larger and more obvious. Finally, a reasonable explanation for above-mentioned......
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O H. Oxidation of chalcopyrite by Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans in shake flasks [J]. Process Biochem, 2002, 38: 587-592. [7] DEVECI H, AKCIL A, ALP I. Bioleaching...]. Appl Environ Microbiol, 1998, 64(7): 2743-2747. [12] HARNEIT K, G?KSEL A, KOCK D, KLOCK J H, GEHRKE T, SAND W. Adhesion to metal sulfide surfaces by cells of Acidithiobacillus ferrooxidans......
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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..., a model of synergistic catalysis mechanism of visible light and Cd2+ on chalcopyrite bioleaching was proposed. Key words: bioleaching; chalcopyrite; Cd2+; Acidithiobacillus ferrooxidans; visible light 1......