Journal of Industrial Microbiology & Biotechnology

, Volume 41, Issue 11, pp 1725–1729 | Cite as

A novel regeneration of iron citrate solution by biooxidation of iron-oxidizing bacteria

  • Y. J. Wang
  • D. P. Li
  • C. Liu
  • G. Q. Zhan
  • X. H. He
Short Communication
First Online:
Received:
Accepted:
  • 202 Downloads

Abstract

Liquid phase oxidation process using chelated iron solution is among the most promising techniques for the hydrogen sulfide removal due to its double advantage of waste minimization and resource recovery. Regeneration of chelated iron is a core reaction in this process. Regeneration of chelated iron in acidic solution is very difficult. In this paper, a novel regeneration of iron citrate in acidic solution by biooxidation of iron-oxidizing bacteria was reported firstly. By using such a process, the influence of iron-oxidizing bacteria on the regeneration rate was investigated. The results demonstrated the regeneration rate with the new technology was increased significantly. The process may contribute to the biooxidation of iron-oxidizing bacteria. Application of this novel process increased the regeneration rate under the optimum conditions, suggesting the iron citrate regeneration process may be a feasible and economical method in application.

Keywords

Iron citrate Hydrogen sulfide Biooxidation Iron-oxidizing bacteria 
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Notes

Acknowledgments

This work was supported by National Natural Science Funds of China (Grant No. 51408384), Western Light Talent Culture Project (Y2C5031) and China Postdoctoral Science Foundation (2013M542276).

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Copyright information

© Society for Industrial Microbiology and Biotechnology 2014

Authors and Affiliations

  • Y. J. Wang
    • 1
    • 2
  • D. P. Li
    • 1
    • 2
  • C. Liu
    • 3
  • G. Q. Zhan
    • 1
    • 2
  • X. H. He
    • 1
    • 2
  1. 1.Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of BiologyChinese Academy of SciencesChengduPeople’s Republic of China
  2. 2.Environmental Microbiology Key Laboratory of Sichuan ProvinceChengduChina
  3. 3.State Key Laboratory of Vanadium and Titanium Resources Comprehensive UtilizationPanzhihuaPeople’s Republic of China

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