Welcome to visit The Chinese Journal of Process Engineering, Today is

›› 2011, Vol. 11 ›› Issue (4): 585-589.

• 反应与分离 • Previous Articles     Next Articles

Study on Application of Acidithiobacillus thiooxidans in Dephosphorization of Hematite in Enshi

SUN Ling-zhi LI Shi-qi WANG Yu-jiao GAO Jin-tao WU Long JIN Xiao-hui   

  1. Metallurgical and Ecological Engineering School, University of Science and Technology Beijing Metallurgical and Ecological Engineering School, University of Science and Technology Beijing Metallurgical and Ecological Engineering School, University of Science and Technology Beijing Metallurgical and Ecological Engineering School, University of Science and Technology Beijing Metallurgical and Ecological Engineering School, University of Science and Technology Beijing Metallurgical and Ecological Engineering School, University of Science and Technology Beijing
  • Received:2011-07-27 Revised:1900-01-01 Online:2011-08-20 Published:2011-08-20
  • Contact: SUN Ling-zhi

氧化硫硫杆菌对难选恩施赤铁矿脱磷的影响

孙灵芝 李士琦 汪玉娇 高金涛 吴龙 金晓晖   

  1. 北京科技大学冶金与生态工程学院 北京科技大学冶金与生态工程学院 北京科技大学冶金与生态工程学院 北京科技大学冶金与生态工程学院 北京科技大学冶金与生态工程学院 北京科技大学冶金与生态工程学院
  • 通讯作者: 孙灵芝

PDF

Abstract: Dephosphorization of phosphorus-containing 0.90% high-phosphorus hematite ore in Enshi with the strain of Acidithiobacillus thiooxidans (At.t) was studied. The preliminary results showed that the maximum dephosphorization rate could reach up to 71%, which meant that Acidithiobacillus thiooxidans had a better dephosphorization effect. 10% of the strain concentration, 75 mm of hematite particles, 4.0 of initial culture pH value were obtained as the optimized leaching conditions by studying the growth characteristics of At.t and effects of different pH values, hematite particle sizes and At.t concentrations on the bioleaching process.

Key words: bio-leaching, Acidithiobacillus thiooxidans, high-phosphorus hematite, dephosphorization

摘要： 利用嗜酸性氧化硫硫杆菌(Acidithiobacillus thiooxidans, At.t)菌种，对含磷为0.90%的恩施高磷赤铁矿进行了微生物降磷实验. 对At.t浓度、培养基初始pH值和赤铁矿粒度对磷浸出效果的影响进行了系统研究. 结果表明，用At.t对高磷赤铁矿进行磷浸出的最佳工艺条件为：At.t浓度10%，培养基初始pH值4.0，赤铁矿粒度75 mm，在此条件下得到的磷磷浸出率高达71%，At.t具有较好的降磷效果.

关键词: 生物浸出, 氧化硫硫杆菌, 高磷赤铁矿, 脱磷

CLC Number: