Quorum sensing and quorum quenching in membrane bioreactors

Kwang Ho Choo, Pyung Kyu Park, Hyun Suk Oh

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Understanding the microbial communications opens a new horizon in the exploration of biological systems, including membrane bioreactors (MBRs). Microbial group behaviors (e.g., biofilm formation), induced by quorum sensing (QS) using signal molecules, cause severe MBR membrane biofouling. To tackle such phenomena, inactivation of signal molecules has been implemented as a new antibiofouling strategy, which is called quorum quenching (QQ). This chapter covers the mechanisms of QS and QQ as well as several different QQ approaches using enzymes, chemical compounds, and microorganisms (e.g., bacteria and fungi) in the MBRs. Various methods to develop and apply the biomedia encapsulating QQ microorganisms for MBR fouling mitigation have been reviewed. Recent information on microbial community and diversity, which can be affected by QS and QQ, was also collected and discussed.

Original languageEnglish
Title of host publicationCurrent Developments in Biotechnology and Bioengineering
Subtitle of host publicationAdvanced Membrane Separation Processes for Sustainable Water and Wastewater Management - Aerobic Membrane Bioreactor Processes and Technologies
PublisherElsevier
Pages245-274
Number of pages30
ISBN (Print)9780128198094
DOIs
Publication statusPublished - 2020 Jan 30

Bibliographical note

Funding Information:
This work was supported by grants from the National Research Foundation of Korea (2019R1H1A2080148, 2018R1C1B5085910, and 2019R1A2C4070045), funded by the Korean Ministry of Science and ICT.

Publisher Copyright:
© 2020 Elsevier B.V. All rights reserved.

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Chemical Engineering(all)

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