The Effect of Vermiculite Loaded with MnO2 on Adsorption of Heavy Metal Pb(II) in Wastewater

  • Caiwen Wu
  • Denggao Guan
  • Yinghui Cui
  • Dehao Hu
  • Yang Liu
  • Li Cheng
  • Xinghong Pu
  • Jiayun Cao
Conference paper
Part of the Springer Proceedings in Energy book series (SPE)

Abstract

The modified vermiculite with MnO2 was prepared by direct precipitation method using vermiculite, MnSO4 and KMnO4 as raw materials. The composition, structure and morphology of raw-vermiculite and modified-vermiculite were analyzed. The effect of the amount of vermiculite, the time of adsorption and the pH of heavy metal ion solution on the adsorption performance of Pb(II) in wastewater were compared. The results showed that modified vermiculite adsorbed heavy metal ions in water better than natural vermiculite. The maximum removal of lead ions from the aqueous solution reaches 99.148% at 60 min and pH 6 with 0.25 g modified vermiculite. At this point, the adsorption rate of modified vermiculite to Pb(II) is increased by about 30%. The results of this study have practical value in improving the value of vermiculite and the comprehensive treatment to lead wastewater.

Keywords

Vermiculite MnO2 Modification Adsorption 

Notes

Acknowledgements

The study was strongly funded by the Key Research Projects of Science and Technology Department of Sichuan Province of China (2017GZ0392), and the Science and Technology Huimin Projects of Science and Technology Bureau of Chengdu of Sichuan Province of China (2015-HM01-00387-SF).

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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Caiwen Wu
    • 1
  • Denggao Guan
    • 1
    • 2
  • Yinghui Cui
    • 1
  • Dehao Hu
    • 1
  • Yang Liu
    • 1
  • Li Cheng
    • 1
  • Xinghong Pu
    • 1
  • Jiayun Cao
    • 1
  1. 1.Academy of Materials, Chemistry and Chemical EngineeringChengdu University of TechnologyChengduChina
  2. 2.Chemical Mineral Resources, Sichuan Province Key Laboratory of Colleges and UniversitiesChengdu University of TechnologyChengduChina

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