高等学校化学学报

高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (S1): 184.

• Chemistry in Life Sciences • 上一篇    下一篇

Bioaccumulation of Mercury by Genetically Engineered Escherichia coli from Real Electrolytic Wastewater

DENG Xu1, LI Qing-Biao1, SUN Dao-Hua1, HUANG Yi-Li1, CHEN Li1, WILSON David-B2   

  1. 1. Department of Chemical Engineering, Xiamen University, Xiamen 361005;
    2. Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14850, USA
  • 出版日期:2000-12-31 发布日期:2000-12-31

Bioaccumulation of Mercury by Genetically Engineered Escherichia coli from Real Electrolytic Wastewater

DENG Xu1, LI Qing-Biao1, SUN Dao-Hua1, HUANG Yi-Li1, CHEN Li1, WILSON David-B2   

  1. 1. Department of Chemical Engineering, Xiamen University, Xiamen 361005;
    2. Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14850, USA
  • Online:2000-12-31 Published:2000-12-31

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摘要：

Bioaccumulation performance of mercury from real electrolyte wastewater by genetically engineered E.coli JM109, which expresses a Hg2+ transport system and metallothionein was investigated. There were more than 10 components existing in the wastewater besides 2.58 mg/L mercury, and the pH of the wastewater was 9.6. The co-ions didn't decrease but somehow promoted mercury uptake rate of induced cells, while a 30% loss of the amount of mercury bioaccumulation was obtained in comparison with that from laboratory surrogate solution only containing mercury.

Abstract:

Bioaccumulation performance of mercury from real electrolyte wastewater by genetically engineered E.coli JM109, which expresses a Hg2+ transport system and metallothionein was investigated. There were more than 10 components existing in the wastewater besides 2.58 mg/L mercury, and the pH of the wastewater was 9.6. The co-ions didn't decrease but somehow promoted mercury uptake rate of induced cells, while a 30% loss of the amount of mercury bioaccumulation was obtained in comparison with that from laboratory surrogate solution only containing mercury.

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