Application of psychrotolerant quorum quenching Planococcus versutus sp. L10.15^T to membrane bioreactors for biofouling control at low temperatures

Abstract

Bacterial quorum quenching (QQ) (e.g., degradation of N-acyl homoserine lactones (AHLs)) has been utilized to mitigate biofouling in membrane bioreactors (MBRs). However, the anti-biofouling efficiency of QQ bacteria may decrease...

Quorum Quenching in Membrane Bioreactors for Fouling Retardation: Complexity Provides Opportunities

“…These functional microbes have been successfully isolated from various natural (marine, river and soil) and engineered environments ,, and cultivated in the laboratory by providing AHLs, AHL structural analogue compounds (e.g., gamma caprolactone), AI-2, DSF, and AIP as the sole carbon sources (Figure a and Table S3). − Certain QQ microorganisms, isolated from specific environmental origins (e.g., aerobic sludge/anaerobic sludge in domestic/industrial wastewater treatment plants and seawater), aim to enhance their corresponding QQ efficiency within MBRs under specific conditions, like aerobic MBRs, , anaerobic MBRs, ,, industrial-wastewater-fed MBRs , and MBRs with cold conditions , (Figure a and Table S3). Despite significant progress in the isolation of QQ microorganisms, it remains difficult to compare the QQ performance between different studies.…”