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Comparison of Fe2+ oxidation by Acidithiobacillus ferrooxidans in rotating-drum and stirred-tank reactors

文献类型：期刊论文

作者Jin, Jian1; Shi, Shao-yuan1,2; Liu, Guo-liang1; Zhang, Qing-hua1; Cong, Wei1
刊名TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
出版日期2013-03-01
卷号23期号:3页码:804-811
关键词Fe2+ Acidithiobacillus ferrooxidans oxidation bioactivity solid content rotating-drum reactor stirred-tank reactor
英文摘要Fe2+ oxidation by Acidithiobacillus ferrooxidans (At. ferrooxidans) under different solid contents by adding inert Al2O3 powder was examined in rotating-drum and stirred-tat.t.: reactors. The results show that the bioactivity of At. ferrooxidans in the stirred-tank is higher than that in the rotating-drum in the absence of Al2O3 powder, but the biooxidation rate of Fe2+ decreases markedly from 0.23 g/(L.h) to 0.025 g/(L.h) with increasing the content of Al2O3 powder from 0 to 50% (mass fraction) in the stirredtank probably due to the deactivation of At. ferrooxidans resulting from the collision and friction of solid particles. The increase in Al2O3 content has a little adverse effect on the bioactivity of At. ferrooxidans in the rotating-drum due to different mixing mechanisms of the two reactors. The biooxidation rate of Fe2 in the rotating-drum is higher than that in the stirred-tank at the same content of Al2O3 powder, especially at high solid content. The higher bioactivity of At. ferrooxidans can be maintained for allowing high solid content in the rotating-drum reactor, but its application potential still needs to be verified further by the sulfide bioleaching for the property differences of Al2O3 powder and sulfide minerals.
WOS标题词Science & Technology ; Technology
类目[WOS]Metallurgy & Metallurgical Engineering
研究领域[WOS]Metallurgy & Metallurgical Engineering
关键词[WOS]FERROUS SULFATE OXIDATION ; ACIDOPHILIC BACTERIA ; OXYGEN-TRANSFER ; FERRIC IRON ; SOLIDS ; CONCENTRATE ; PARTICLES ; VIABILITY
收录类别SCI
语种英语
WOS记录号WOS:000324003100032
公开日期2015-05-27
源URL[http://ir.ipe.ac.cn/handle/122111/13655]  
专题过程工程研究所_研究所（批量导入）
作者单位1.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.E China Univ Sci & Technol, State Key Lab Bioreactor Engn, Shanghai 200237, Peoples R China
推荐引用方式
GB/T 7714		 Jin, Jian,Shi, Shao-yuan,Liu, Guo-liang,et al. Comparison of Fe2+ oxidation by Acidithiobacillus ferrooxidans in rotating-drum and stirred-tank reactors[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2013,23(3):804-811.
APA Jin, Jian,Shi, Shao-yuan,Liu, Guo-liang,Zhang, Qing-hua,&Cong, Wei.(2013).Comparison of Fe2+ oxidation by Acidithiobacillus ferrooxidans in rotating-drum and stirred-tank reactors.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,23(3),804-811.
MLA Jin, Jian,et al."Comparison of Fe2+ oxidation by Acidithiobacillus ferrooxidans in rotating-drum and stirred-tank reactors".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 23.3(2013):804-811.

入库方式： OAI收割

来源：过程工程研究所

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