DOI: 10.1016/j.watres.2018.06.030
Scopus记录号: 2-s2.0-85053039150
论文题名: Evaluation of a novel quorum quenching strain for MBR biofouling mitigation
作者: Kampouris I.D. ; Karayannakidis P.D. ; Banti D.C. ; Sakoula D. ; Konstantinidis D. ; Yiangou M. ; Samaras P.E.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 143 起始页码: 56
结束页码: 65
语种: 英语
英文关键词: Critical flux
; Extracellular polymeric substances
; Membrane biofouling
; Membrane bioreactor
; Quorum quenching
; Soluble microbial products
Scopus关键词: Bacteria
; Bioreactors
; Membranes
; Polymers
; Quenching
; Surface treatment
; Wastewater treatment
; Critical flux
; Extra-cellular polymeric substances
; Membrane biofouling
; Membrane bioreactor
; Quorum quenching
; Soluble microbial products
; Biofouling
; bacterium
; biofouling
; bioreactor
; enzyme
; flux measurement
; membrane
; microbial activity
; polymer
; sludge
; wastewater
; Bacteria (microorganisms)
; Lactobacillus sp.
英文摘要: Membrane biofouling, due to Soluble Microbial Products (SMP) and Extracellular Polymeric Substances (EPS) deposition, results in reduction of the performance of Membrane Bioreactors (MBRs). However, recently, a new method of biofouling control has been developed, utilizing the interference of the bacterial inter- and intra-species’ communication. Bacteria use Quorum Sensing (QS) to regulate the production of SMP and EPS. Therefore, disruption of Quorum Sensing (Quorum Quenching: QQ), by enzymes or microorganisms, may be a simple mean to control membrane biofouling. In the present study, a novel QQ-bacterium, namely Lactobacillus sp. SBR04MA, was isolated from municipal wastewater sludge and its ability to mitigate biofouling was evaluated by monitoring the changes in critical flux and transmembrane pressure, along with the production of EPS and SMP, in a lab-scale MBR system treating synthetic wastewater. Lactobacillus sp. SBR04MA showed great potential for biofouling control, which was evidenced by the ∼3-fold increase in critical flux (8.3 → 24.25 L/m2/h), as well as by reduction of the SMP and EPS production, which was lower during the QQ-period when compared against the control period. Furthermore, the addition of the QQ-strain did not affect the COD removal rate. Results suggested that Lactobacillus sp. SBR04MA represents a novel and promising strain for biofouling mitigation and enhancement of MBRs performance. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112562
Appears in Collections: 气候减缓与适应
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作者单位: Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, GR-54124, Greece; Department of Food Technology, School of Food Technology and Nutrition, Alexander Technological Educational Institute of Thessaloniki, Thessaloniki, GR-57400, Greece; Sewerage Quality Control Laboratory, Management of Facilities and Sewerage Networks, Thessaloniki Water Supply & Sewerage Company S.A., Thessaloniki, GR-54622, Greece
Recommended Citation:
Kampouris I.D.,Karayannakidis P.D.,Banti D.C.,et al. Evaluation of a novel quorum quenching strain for MBR biofouling mitigation[J]. Water Research,2018-01-01,143