Biooxidation of ferrous iron by immobilized Acidithiobacillus ferrooxidans in poly(vinyl alcohol) cryogel carriers
文献类型：期刊论文
| 作者 | Long, ZE; Huang, YH; Cai, ZL; Cong, W; Fan, OY |
| 刊名 | BIOTECHNOLOGY LETTERS
 |
| 出版日期 | 2003-02-01 |
| 卷号 | 25期号:3页码:245-249 |
| 关键词 | Acidithiobacillus ferrooxidans biooxidation of ferrous iron immobilization packed-bed bioreactor poly(vinyl alcohol) cryogel |
| ISSN号 | 0141-5492 |
| 其他题名 | Biotechnol. Lett. |
| 中文摘要 | PVA-cryogels entrapping about 10 9 cells of Acidithiobacillus ferrooxidans per ml of gel were prepared by freezing-thawing procedure, and the biooxidation of Fe2+ by immobilized cells was investigated in a 0.365 l packed-bed bioreactor. Fe2+ oxidation fits a plug-flow reaction model well. A maximum oxidation rate of 3.1 g Fe2+ l(-1) h(-1) was achieved at the dilution rate of 0.4 h(-1) or higher, while no obvious precipitate was determined at this time. In addition, cell-immobilized PVA-cryogels packed in bioreactor maintained their oxidative ability for more than two months under non-sterile conditions. Nomenclature: C-A0 - Concentration of Fe2+ in feed stream (g l(-1)) C-A - Concentration of Fe2+ in outlet stream (g l(-1)) D - Dilution rate of the packed-bed bioreactor (h(-1)) F - Volumetric flow rate of iron solution (l h(-1)) F-A0 - Mass flowrate of Fe2+ in the feed stream (g h(-1)) K - Kinetic constant (11(-1) h(-)1) r(A) - Oxidation rate of Fe2+ (g l(-1) h(-1)) V - Volume of packed-bed bioreactor (l) X-A - Conversion ratio of Fe2+ (%) |
| 英文摘要 | PVA-cryogels entrapping about 10 9 cells of Acidithiobacillus ferrooxidans per ml of gel were prepared by freezing-thawing procedure, and the biooxidation of Fe2+ by immobilized cells was investigated in a 0.365 l packed-bed bioreactor. Fe2+ oxidation fits a plug-flow reaction model well. A maximum oxidation rate of 3.1 g Fe2+ l(-1) h(-1) was achieved at the dilution rate of 0.4 h(-1) or higher, while no obvious precipitate was determined at this time. In addition, cell-immobilized PVA-cryogels packed in bioreactor maintained their oxidative ability for more than two months under non-sterile conditions. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Biotechnology & Applied Microbiology |
| 研究领域[WOS] | Biotechnology & Applied Microbiology |
| 关键词[WOS] | PACKED-BED REACTORS ; THIOBACILLUS-FERROOXIDANS ; SULFATE OXIDATION ; KINETICS ; CELLS |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000180831100011 |
| 公开日期 | 2013-11-08 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/5270]  |
| 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, State Key Lab Biochem Engn, Beijing 100080, Peoples R China 2.Jiangxi Normal Univ, Coll Life Sci, Nanchang 330027, Peoples R China |
| 推荐引用方式 GB/T 7714 | Long, ZE,Huang, YH,Cai, ZL,et al. Biooxidation of ferrous iron by immobilized Acidithiobacillus ferrooxidans in poly(vinyl alcohol) cryogel carriers[J]. BIOTECHNOLOGY LETTERS,2003,25(3):245-249. |
| APA | Long, ZE,Huang, YH,Cai, ZL,Cong, W,&Fan, OY.(2003).Biooxidation of ferrous iron by immobilized Acidithiobacillus ferrooxidans in poly(vinyl alcohol) cryogel carriers.BIOTECHNOLOGY LETTERS,25(3),245-249. |
| MLA | Long, ZE,et al."Biooxidation of ferrous iron by immobilized Acidithiobacillus ferrooxidans in poly(vinyl alcohol) cryogel carriers".BIOTECHNOLOGY LETTERS 25.3(2003):245-249. |
入库方式： OAI收割
来源：过程工程研究所
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