A critical review of the recent developments in micro–nano bubbles applications for domestic and industrial wastewater treatment

Marwa Sakr, Mohamed M. Mohamed, Munjed A. Maraqa, Mohamed A. Hamouda, Ashraf Aly Hassan, Jafar Ali, Jinho Jung

Research output: Contribution to journalReview articlepeer-review

Abstract

This review highlights the advantages of using micro–nano bubble (MNB) technology in various applications of wastewater treatment. Initially, the review examines key performance dissimilarities among different types of bubbles toward the treatment process. Specifically, a qualitative and quantitative meta-analysis of the effects of MNBs in the removal of target pollutants found in wastewater from different sources is conducted. A review on the MNBs characterization techniques to identify bubble size, size distribution, and accordingly bubble rising velocity as well as gas mass transfer rates, zeta potential, generation of free radicals, and bubble stability is also included. Moreover, the effect of bubble size on the efficiency of municipal and industrial wastewater treatment processes is evaluated. Finally, the applications of MNBs are investigated to explore their effectiveness in different wastewater treatment processes, such as ozonation, flotation/dissolved air flotation, aeration, and other processes. It is anticipated that the use MNBs could be a promising sustainable and low-cost wastewater treatment technology.

Original languageEnglish
JournalAEJ - Alexandria Engineering Journal
DOIs
Publication statusAccepted/In press - 2021

Keywords

  • Application
  • Bubble characterization
  • Mass transfer
  • Micro–nano bubbles
  • Wastewater treatment

ASJC Scopus subject areas

  • Engineering(all)

Fingerprint

Dive into the research topics of 'A critical review of the recent developments in micro–nano bubbles applications for domestic and industrial wastewater treatment'. Together they form a unique fingerprint.

Cite this