| 微生物脱硫工艺条件的研究 |
| 摘要点击 1728 全文点击 1989 投稿时间：2002-09-26 修订日期：2002-11-18 |
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| 中文关键词 烟气脱硫 微生物法 氧化亚铁硫杆菌 |
| 英文关键词 flue gas desulfurization microbiol method thiobacillus ferrooxidans |
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| 中文摘要 |
| 通过对比酸性水溶液、含Fe3+的酸性水溶液及细菌菌液脱除SO2的效果,研究了Fe3+浓度、pH值和通气时间变化对脱硫率的影响.实验表明:酸性水溶液中SO2的吸收仅为物理吸收;Fe3+能催化氧化SO2,这种催化氧化效果随着Fe3+浓度的升高、pH值的增大而变得明显(pH值2.0、Fe3+1.5g/L时,通气时间近170min,脱硫率仍高达90%);细菌菌液脱硫的效果同样受Fe3+浓度、pH值的影响;氧化亚铁硫杆菌不仅具有氧化Fe2+的能力,还具有氧化S(Ⅳ)的能力,在Fe3+浓度1.5g/L,pH值1.5时效果最为明显. |
| 英文摘要 |
| The desufurization in dilute sulfuric acid solution, acidic ferric solution, and microbial solution(Thiobacillus ferrooxidans) was studied in this paper. The concentration of ferric, pH value and time all affect the rate of desulfurization. The experimental results showed that in dilute sulfuric acid solution the absorption of SO2 was a physical absorption. In acidic ferric solution, the ion of ferric can not only catalyze but also oxidize SO2. The effects of desulfurization became obvious along with high concentration of ferric and pH value. Desulfurization rate was up to 90% when pH value was 2.0 and the concentration of ferric was 1.5g/L. In microbial solution, the effects were also influenced by the concentration of ferric and pH value. Thiobacillus ferrooxidans had an ability of oxiding the ion of ferrous and S(Ⅳ). The results of desulfurization was the best at the concentration of ferric 1.5g/L and pH 2.0. |
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