Arabian Journal of Geosciences

, Volume 8, Issue 12, pp 11321–11328 | Cite as

Sedimentation of harmful dust by means of ultrasonic waves and additional disperse phase

  • Sergey Titov
  • Maria Stepkina
  • Alexandra Antonnikova
  • Natalya Korovina
  • Boris Vorozhtsov
  • Eugeny Muravlev
  • Olga Kudryashova
Original Paper
  • 201 Downloads
Part of the following topical collections:
  1. DUST

Abstract

The harmful effect on the health of superfine dust in industry is a serious problem. An especially important and complex task is the development of new methods for sedimentation of dust particles with a characteristic size of less than 10 μm. The solution offered by the authors involves a combined method of impact on industrial dust using high-frequency acoustic fields and spraying of a superfine water aerosol. Acoustic radiation sources are successfully applied to cleaning rooms from dust having fairly large particle sizes (10 μm and larger). The sedimentation of fine aerosols (particle diameter of 1–10 μm) is a more complicated challenge. The paper is devoted to substantiation of the acoustic sedimentation method for such aerosols. Good results were achieved when additional disperse phase was applied together with the ultrasonic source. Calculation results according to the mathematical model for coagulation and sedimentation, based on Smoluchowski’s equation, taking into account evaporation of liquid droplets, are given. Results of the experimental and theoretical study of the processes of acoustic sedimentation of superfine aerosols are presented. Recommendations are offered for the use of sources of ultrasonic radiation and sprayers of water aerosol for optimum removal of dust from workplace air.

Keywords

Aerosol coagulation Ultrasonic influence Two-phase aerosol Evaporation of droplets Distribution function of particles by sizes 

Notes

Acknowledgments

The authors would like to thank Dr. V. Khmelev from Biysk Technological Institute (branch) of the AltSTU for support in the research. The acoustic source was kindly provided by Acoustic Processes & Devices lab.

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Copyright information

© Saudi Society for Geosciences 2015

Authors and Affiliations

  • Sergey Titov
    • 1
  • Maria Stepkina
    • 1
  • Alexandra Antonnikova
    • 1
  • Natalya Korovina
    • 1
  • Boris Vorozhtsov
    • 1
  • Eugeny Muravlev
    • 1
  • Olga Kudryashova
    • 1
  1. 1.IPCET SB RASBiyskRussia

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