东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2005, Vol. 26 ›› Issue (3): 304-306.DOI: -

• 论著 • 上一篇    

沟戈登氏菌吸附Cu~(2+);Pb~(2+);Hg~(2+)的重金属抗性研究

周东琴;朱一民;魏德洲   

  1. 东北大学资源与土木工程学院;东北大学资源与土木工程学院;东北大学资源与土木工程学院 辽宁沈阳　110004
  • 收稿日期:2013-06-24 修回日期:2013-06-24 出版日期:2005-03-15 发布日期:2013-06-24
  • 通讯作者: Zhou, D.-Q.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(50174014);;辽宁省自然科学基金资助项目(20022025);;辽宁省科技攻关项目(2001304024)·

On the antagonism against of heavy metals to biosorption of Cu2+, Pb2+ and Hg2+ by Gordona amarae

Zhou, Dong-Qin (1); Zhu, Yi-Min (1); Wei, De-Zhou (1)   

  1. (1) Sch. of Resources and Civil Eng., Northeastern Univ., Shenyang 110004, China
  • Received:2013-06-24 Revised:2013-06-24 Online:2005-03-15 Published:2013-06-24
  • Contact: Zhou, D.-Q.
  • About author:-
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摘要： 用Cu2+,Pb2+和Hg2+3种离子对沟戈登氏菌诱导培养的结果表明,这些离子能促进提高培养后的沟戈登氏菌对Pb2+和Hg2+的吸附活性,但对Cu2+的吸附活性则不明显,甚至有一定的抵抗作用·培养基中加入5 72mg/L的Cu2+连续培养时,沟戈登氏菌对Hg2+的吸附率由39%上升至98%,对Cu2+的吸附率由51%下降至35%,这种差别使吸附过程具有选择性·在利用微生物吸附工业废水中的重金属离子时,选择性诱导培养是提高微生物吸附能力的有效方法·

关键词: 沟戈登氏菌, 生物吸附, 拮抗作用, 重金属离子, 工业废水

Abstract: The inducible culture of Gordona amarae was carried out by such heavy metal ions as Cu2+, Pb2+ and Hg2+ and studied. The result showed that all of these ions can foster the strain to enhance the activation of adsorption of Pb2+ and Hg2+, with no evident adsorption of Cu2+ observed but microbiological antagonism against Cu2+ found when adding Cu2+ of which the concentration is 5.72 mg/L in the culture medium, i. e., the rate of adsorption of Hg2+ increases from 39% to 98% but that of Cu2+ decreases from 51% to 35%. Such a difference leads to the adsorption process to be selective. All these indicate that the selectively inducible culture is an effective way to the biosorption of heavy metal ions in industrial waste-water treatment.

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