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Biofouling control in a membrane filtration system by a newly isolated novel quorum quenching bacterium, Bacillus methylotrophicus sp WY
Khan, R.1,2; Shen, F.1; Khan, K.1,2; Liu, L. X.1,2; Wu, H. H.1,2; Luo, J. Q.1; Wan, Y. H.1; Shen, F
2016
Source PublicationRSC ADVANCES
ISSN2046-2069
Volume6Issue:34Pages:28895-28903
AbstractDuring membrane processes of wastewater treatment, biofouling is a critical issue affecting membrane performance. Interspecies quorum quenching (QQ) by bacterial cells has been reported as a novel approach for mitigating the biofouling via restraining quorum sensing (QS), where secreted signaling molecules, e.g., acyl homoserine lactones (AHLs) being essential for biofilm formation are degraded by QQ bacteria. Herein, we isolated a novel indigenous QQ bacterium, Bacillus methylotrophicus strain WY from real wastewater sludge for controlling membrane biofouling. Strain WY was successfully characterized for QS and QQ activity and possessed a wide-ranging activity for degrading AHLs. More than 90% degradation for C8-HSL, C10-HSL, C12-HSL, C14-HSL, 3-oxo-C6HSL, 3-oxo-C8HSL and 3-oxo-C12HSL were achieved. Further, sodium alginate beads immobilized strain WY cells were applied to the microfiltration process. Compared to the vacant beads, using the beads with stain WY increased membrane flux by 3 to 4 times, demonstrating excellent biofouling control ability of strain WY.
KeywordWaste-water Treatment Homoserine Lactones Bioreactors Mbr Identification Microfiltration Acylase Plant
SubtypeArticle
Subject AreaChemistry, Multidisciplinary ; Chemistry
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c6ra01663d
URL查看原文
Indexed BySCI
Language英语
WOS KeywordWASTE-WATER TREATMENT ; HOMOSERINE LACTONES ; BIOREACTORS ; MBR ; IDENTIFICATION ; MICROFILTRATION ; ACYLASE ; PLANT
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
Funding OrganizationNational High-Tech R&D Program of China(2012AA021202 ; 2014AA021005)
WOS IDWOS:000372610200087
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/20705
Collection研究所(批量导入)
Corresponding AuthorShen, F
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Khan, R.,Shen, F.,Khan, K.,et al. Biofouling control in a membrane filtration system by a newly isolated novel quorum quenching bacterium, Bacillus methylotrophicus sp WY[J]. RSC ADVANCES,2016,6(34):28895-28903.
APA Khan, R..,Shen, F..,Khan, K..,Liu, L. X..,Wu, H. H..,...&Shen, F.(2016).Biofouling control in a membrane filtration system by a newly isolated novel quorum quenching bacterium, Bacillus methylotrophicus sp WY.RSC ADVANCES,6(34),28895-28903.
MLA Khan, R.,et al."Biofouling control in a membrane filtration system by a newly isolated novel quorum quenching bacterium, Bacillus methylotrophicus sp WY".RSC ADVANCES 6.34(2016):28895-28903.
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