| 黄铁矿烧渣微生物脱硫 |
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| 引用本文： | 冯雅丽,李浩然. 黄铁矿烧渣微生物脱硫[J]. 北京科技大学学报, 2002, 24(2): 216-218. DOI: 10.3321/j.issn:1001-053X.2002.02.030 |
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| 作者姓名： | 冯雅丽 李浩然 |
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| 作者单位： | 1. 北京科技大学士木与环境工程学院,北京,100083;2. 中国科学院过程工程研究所生化工程国家重点实验室,北京 |
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| 基金项目： | 国家自然科学基金;201760611; |
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| 摘 要： | 在烧渣生物脱硫的试验.论研究了矿浆浓度、Fe3+浓度及pH值对游离T.f.菌浓度和脱硫率的影响.证明烧渣脱硫是T.f.菌直接浸出作用和由细菌而产生的Fe3+间接浸出作用的联合;脱硫速率和菌种氧化活性受到吸附在固相上和液相中细菌生长情况、矿浆浓度、pH值和Fe3+的影响;三价铁离子的添加可影响菌种活性,抑制浸出的进行,且易在矿物表面产生沉淀,降低氧化率.烧渣生物脱硫后,可达到铁精矿标准.
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| 关 键 词： | 黄铁矿烧渣 生物脱硫 氧化亚铁硫杆菌(T.f.) 脱硫率 菌种活性 |
| 修稿时间： | 2001-12-28 |
Bio-desulphurization from Pyrite Slag with Thiobacillus Ferrooxidans |
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| FENG Yali,LI Haoran Civil and Environment Engineering School,UST Beijing,Beijing ,China Institute of Processing Engineering,Academia Sinica National Laboratory of Bio-chemical Engineering,Beijing ,China. Bio-desulphurization from Pyrite Slag with Thiobacillus Ferrooxidans[J]. Journal of University of Science and Technology Beijing, 2002, 24(2): 216-218. DOI: 10.3321/j.issn:1001-053X.2002.02.030 |
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| Authors: | FENG Yali LI Haoran Civil Environment Engineering School UST Beijing Beijing China Institute of Processing Engineering Academia Sinica National Laboratory of Bio-chemical Engineering Beijing China |
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| Affiliation: | FENG Yali,LI Haoran Civil and Environment Engineering School,UST Beijing,Beijing 100083,China Institute of Processing Engineering,Academia Sinica National Laboratory of Bio-chemical Engineering,Beijing 100080,China |
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| Abstract: | The bio-desulphurization experiments on slag were carried out. The results show that pulp density, Fe3+ concentration and pH are effect on Thiobacillus ferrooxidans(T.f.) consistency free in the solution and desulphurization rate. The bio-desulphurization from slag is due to the combination of the direct bacterial action on the mineral surface with the indirect leaching by the ferric ion produced by the bacteria into the sol- ution. Desulphurization rate and oxidative activity of the T.f. are influenced by the growth of T.f adhered to the mineral , mineral density, Fe3+ concentration and pH consistency. The addition of ferric ion can interfere in the bacteria oxidative activity and result in inhibiting effect on the desulphurization, some sediment on the sur- face of the mineral are formed to reduce desulphurization rate. |
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| Keywords: | pyrite slag bio-desulphurization thiobacillus ferrooxidans(T.f) bacteria activity |
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