东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2009, Vol. 30 ›› Issue (1): 101-104.DOI: -

• 论著 • 上一篇    下一篇

难处理金矿吸附浸矿细菌多糖含量变化的研究

杨洪英;王胜利;富瑶;范有静;   

  1. 东北大学材料与冶金学院;
  • 收稿日期:2013-06-22 修回日期:2013-06-22 出版日期:2009-01-15 发布日期:2013-06-22
  • 通讯作者: Yang, H.-Y.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(50674029;50874030;50274024);;

Study on change of polysaccharide content in leaching bacteria during adsorbing refractory gold ore

Yang, Hong-Ying (1); Wang, Sheng-Li (1); Fu, Yao (1); Fan, You-Jing (1)   

  1. (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China
  • Received:2013-06-22 Revised:2013-06-22 Online:2009-01-15 Published:2013-06-22
  • Contact: Yang, H.-Y.
  • About author:-
  • Supported by:
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摘要： 采用苯酚-硫酸方法测定HQ0211菌裂解液中多糖含量,得出最佳的裂解时间为25 min,最佳吸收波长为430 nm,最佳冷却时间为10 min.在利用HQ0211菌对含砷金矿进行吸附氧化试验研究时,微生物细胞多糖含量随着溶液体系电位的变化而变化.在480~572 mV阶段,游离在溶液中的细菌的多糖质量浓度为0.033~0.123 mg/mL,吸附在含砷金矿石矿物上的细菌细胞多糖为5.3~8.9 mg/g;当电位达到638 mV时,溶液中游离的细菌细胞多糖质量浓度达1.155 mg/mL,吸附在矿物上的细菌细胞多糖可高达57.5 mg/g.

关键词: 多糖, 生物氧化, 难处理金矿, 细菌, 吸附

Abstract: The polysaccharide content in the bacterium HQ0211 lysate was determined by phenol-vitriol method, from which some optimal values were given including the lyric time 25 min, adsorption wavelength 430 nm and cooling time 10 min. In the test using the leaching bacterium HQ0211 to adsorb/oxidate the refractory As-bearing gold ore, it was found that the polysaccharide of bacterium cell changes with the potential of solution. When the potential is 480~572 mV and 638 mV, the polysaccharide contents of free bacterial cells in solution and of bacterial cells adsorbed on grains of As-bearing gold ore are 0.033~0.123 mg/mL and 5.3~8.9 mg/g, 1.155 mg/mL and 57.5 mg/g, respectively.

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