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DOI: https://doi.org/10.4491/eer.2018.380
Quorum quenching for effective control of biofouling in membrane bioreactor: A comprehensive review of approaches, applications, and challenges
Börte Kose Mutlu1,2, Tülay Ergön-Can1, Ismail Koyuncu1,2, and Chung-Hak Lee3
1National Research Center on Membrane Technologies, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey
2Department of Environmental Engineering, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey
3School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Republic of Korea
Corresponding Author: Börte Kose Mutlu ,Tel: +90-212-285-3789, +82-2-880-7075, Email: kosebo@itu.edu.tr, leech@snu.ac.kr
Chung-Hak Lee ,Tel: +90-212-285-3789, +82-2-880-7075, Email: kosebo@itu.edu.tr, leech@snu.ac.kr
Received: October 31, 2018;  Accepted: January 14, 2019.
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ABSTRACT
In comparison to alternative advanced wastewater treatment technologies, the main problem associated with membrane bioreactor (MBR) technology, which has become prominent in recent years, is biofouling. Within these systems, biofouling is typically the result of a biofilm layer resulting from bacterial gathering. One biological system that can be employed to interrupt the process of bacterial gathering is called ‘Quorum Quenching (QQ)’. Existing QQ applications can be classified using three main types: 1) bacterial/whole-cell applications, 2) direct enzyme applications, and 3) natural sourced compounds. The most common and widely recognized applications for membrane fouling control during MBR operation are bacterial and direct enzyme applications. The purpose of this review was to identify and assess biofilm formation mechanism and results, the suggestion of the QQ concept and its potential to control biofilm formation, and the means by which these QQ applications can be applied within the MBR and present QQ MBR studies.
Keywords: Biofouling | Membrane Bioreactor | Quorum Sensing | Quorum Quenching | Wastewater Treatment
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