华东师范大学学报(自然科学版) ›› 2005, Vol. 2005 ›› Issue (1): 105-110.

• 地理学 河口海岸学 • 上一篇    下一篇

硫酸盐还原菌还原Cr(Ⅵ)的初步研究

瞿建国1,申如香2,徐伯兴3,李福德4   

  1. 1.华东师范大学 河口海岸国家重点实验室，上海 200062;2.中国科学院 硅酸盐研究所，上海 200050; 3.华东师范大学 环境科学系，上海 200062;4.中国科学院 成都生物研究所，成都 610041
  • 收稿日期:2004-02-18 修回日期:2004-03-19 出版日期:2005-03-25 发布日期:2005-03-25
  • 通讯作者: 瞿建国

Study on Reduction of Hexavalent Chromium by Sulfate-reducing Bacteria(Chinese)

QU Jian-guo1,SHEN Ru-xiang2,XU Bo-xing3,LI Fu-de4

  

  1. 1.State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062,China; 2.Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050,China; 3.Department of Environmental Science, East China Normal University, Shanghai 200062,China; 4.Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdou 610041,China
  • Received:2004-02-18 Revised:2004-03-19 Online:2005-03-25 Published:2005-03-25
  • Contact: QU Jian-guo

摘要： 从土壤中分离筛选出几株抗Cr(Ⅵ)的硫酸盐还原菌(SRB)，能在含800mg/L Cr(Ⅵ)的培养基中生长，其中2-S-8菌株在含75mg/LCr(Ⅵ)的培养基中生长36h后，培养液中的Cr(Ⅵ)已全部消失.该菌株经初步鉴定为脱硫弧菌.试验结果表明：高毒的Cr(Ⅵ)可被SRB还原成为低毒的Cr(Ⅲ)，SRB对Cr(Ⅵ)的还原与SO42-还原作用密切相关，主要是由SRB的代谢作用所产生的还原性产物(S2-)来完成.

关键词: 硫酸盐还原菌, 铬(Ⅵ)还原, 脱硫弧菌, 生物修复, 硫酸盐还原菌, 铬(Ⅵ)还原, 脱硫弧菌, 生物修复

Abstract: Several Sulfate Eir Reducing Bacteria (SRB) strains, isolated from soil, were able to grow in the medium containing 800mg/L chromium(Ⅵ), The Cr(Ⅵ) disappeared when the strain 2-S-8 grew in the medium containing 75mg/L Cr(Ⅵ) for 36h.The strain was identified as Desulfovibrio sp. The results showed that high-toxic Cr(Ⅵ) was reduced to hypo-toxic Cr(Ⅲ) by SRB, and the Cr(Ⅵ) reduction was related to the reduction of sulfate, which was mainly carried out effect by metabolin of SRB.

Key words: chromium(Ⅵ) reduction, desulfovibrio sp., bioremediation, sulfate-Reducing Bacteria, chromium(Ⅵ) reduction, desulfovibrio sp., bioremediation

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