东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2007, Vol. 28 ›› Issue (4): 525-528.DOI: -

• 论著 • 上一篇    下一篇

锌离子对浸矿嗜热菌HQ0211生长控制的研究

佟琳琳;姜茂发;杨洪英;范有静;   

  1. 东北大学材料与冶金学院;东北大学材料与冶金学院;东北大学材料与冶金学院;东北大学理学院 辽宁沈阳110004;辽宁沈阳110004;辽宁沈阳110004;辽宁沈阳110004
  • 收稿日期:2013-06-24 修回日期:2013-06-24 出版日期:2007-04-15 发布日期:2013-06-24
  • 通讯作者: Tong, L.-L.
  • 作者简介:-
  • 基金资助:
    国家高技术研究发展计划项目(2006AA06Z127);;

Study on growth control of bioleaching thermophilic strain HQ0211 by zinc ions

Tong, Lin-Lin (1); Jiang, Mao-Fa (1); Yang, Hong-Ying (1); Fan, You-Jing (2)   

  1. (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China; (2) School of Sciences, Northeastern University, Shenyang 110004, China
  • Received:2013-06-24 Revised:2013-06-24 Online:2007-04-15 Published:2013-06-24
  • Contact: Tong, L.-L.
  • About author:-
  • Supported by:
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摘要： 研究了锌离子对HQ0211菌生长速度的影响,试验结果表明:在细菌的生长过程中,菌液中锌离子浓度低于1.0×10-3mol/L时,促进细菌的生长,即锌离子为营养离子;当菌液中锌离子浓度高于1.0×10-2mol/L时,则抑制细菌生长,即锌离子为毒性离子;当菌液中锌离子浓度为8×10-5mol/L时,细菌的生长速度最快.研究表明,适量锌离子能够提高细菌的生长速度,提高细菌的氧化活性和浸矿能力,从而提高工业生产的经济效益.

关键词: 锌离子, 细菌生长速度, 细菌冶金, 嗜热菌, 浸矿细菌

Abstract: The influence of zinc ions on the growth of the bioleaching thermophilic strain HQ0211 was studied. Experimental results showed that if the concentration of zinc ions in liquid medium is lower than 1.0 × 10-3 mol/L, the growth of the strain is expedited, i.e. zinc ions play a nutrient role of growth. However, the growth is inhibited if the concentration is higher than 1.0 × 10-2 mol/L, i.e. zinc ions play a toxic role of growth. In case the concentration is down to 8 × 10-5 mol/L, the strain grows quickest. It was revealed that an appropriate amount of zinc ions enable the strain to grow quickly so as to improve the oxidizing activity and bioleaching ability of the strain, thus enhancing the industrial capacity and economic benefits.

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