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Treatment of simulated liquid radioactive waste containing cobalt by in-situ co-precipitation of Zn/Al layered double hydroxides

  • Guangtuan HuangEmail author
  • Lifeng Shao
  • Xiaohong He
  • Li Jiang
Article
  • 26 Downloads

Abstract

This paper reports a new approach to treat the cobalt containing wastewater by in situ co-precipitation of Zn/Al layered double hydroxides (LDHs). LDHs with various metal compositions were characterized by XRD, and their capabilities to remove Co2+ were examined. Zn/Al system was found to be the best Co-removing LDHs system, which could remove Co2+ at the highest efficiency (> 99.99%). Reaction parameters of Zn/Al-LDHs were further optimized. The analysis of products found that Co2+ were removed in the form of Co4.8Zn1.2Al2(OH)16CO3·4H2O. This study suggests that in situ co-precipitation Zn/Al-LDHs provides an effective approach to treat liquid radioactive wastes containing Co2+ from nuclear power plant.

Keywords

LDHs Cobalt Liquid radioactive wastes In-situ co-precipitation 

Notes

Acknowledgements

The authors sincerely appreciate the help of the analysts from Center of Analysis and Test, Laboratory for Resource and Environmental Education, and School of Chemical Engineering in East China University of Science and Technology.

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2019

Authors and Affiliations

  • Guangtuan Huang
    • 1
    Email author
  • Lifeng Shao
    • 1
  • Xiaohong He
    • 1
  • Li Jiang
    • 1
  1. 1.State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resources and Environmental EngineeringEast China University of Science and TechnologyShanghaiChina

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