Disinfection characteristics of an advanced rotational hydrodynamic cavitation reactor in pilot scale - Publication - MOST Wiedzy

Search

Disinfection characteristics of an advanced rotational hydrodynamic cavitation reactor in pilot scale

Abstract

Hydrodynamic cavitation is a promising technique for water disinfection. In the present paper, the disinfection characteristics of an advanced hydrodynamic cavitation reactor (ARHCR) in pilot scale were studied. The effects of various flow rates (1.4–2.6 m3/h) and rotational speeds (2600–4200 rpm) on the removal of Escherichia coli (E. coli) were revealed and analyzed. The variation regularities of the log reduction and reaction rate constant at various cavitation numbers were established. A disinfection rate of 100% was achieved in only 4 min for 15 L of simulated effluent under 4200 rpm and 1.4 m3/h, with energy efficiency at 0.0499 kWh/L. A comprehensive comparison with previously introduced HCRs demonstrates the superior performance of the presented ARHCR system. The morphological changes in E. coli were studied by scanning electron microscopy. The results indicate that the ARHCR can lead to serious cleavage and surface damages to E. coli, which cannot be obtained by conventional HCRs. Finally, a possible damage mechanism of the ARHCR, including both the hydrodynamical and sonochemical effects, was proposed. The findings of the present study can provide strong support to the fundamental understanding and applications of ARHCRs for water disinfection.

Citations

  • 0

    CrossRef

  • 0

    Web of Science

  • 0

    Scopus

Cite as

Authors (10)

  • Photo of  Xun Sun

    Xun Sun

    • Shandong University, Jinan 250061, China
  • Photo of  Zhengquan Wang

    Zhengquan Wang

    • Shandong University, Jinan 250061, China
  • Photo of  Xiaoxu Xuan

    Xiaoxu Xuan

    • Shandong University, Jinan 250061, China
  • Photo of  Li Ji

    Li Ji

    • Shandong University, Jinan 250061, China
  • Photo of  Xuewen Li

    Xuewen Li

    • Shandong University, Jinan 250061, China
  • Photo of  Yang Tao

    Yang Tao

    • Nanjing Agricultural University, Nanjing 210095, China
  • Photo of  Shan Zhao

    Shan Zhao

    • Shandong University, Qingdao 266237, China
  • Photo of  Joon Yong Yoon

    Joon Yong Yoon

    • Hanyang University, Ansan 15588, Republic of Korea
  • Photo of  Songying Chen

    Songying Chen

    • Shandong University, Jinan 250061, China

Details

Category:
Articles
Type:
artykuły w czasopismach
Published in:
ULTRASONICS SONOCHEMISTRY
ISSN: 1350-4177
Language:
English
Publication year:
2021
Bibliographic description:
Sun X., Wang Z., Xuan X., Ji L., Li X., Tao Y., Boczkaj G., Zhao S., Yong Yoon J., Chen S.: Disinfection characteristics of an advanced rotational hydrodynamic cavitation reactor in pilot scale// ULTRASONICS SONOCHEMISTRY -, (2021), s.105543-
DOI:
Digital Object Identifier (open in new tab) 10.1016/j.ultsonch.2021.105543
Verified by:
Gdańsk University of Technology

seen 1 times

Recommended for you

Meta Tags