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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
发表期刊RSC ADVANCES
ISSN2046-2069
卷号6期号:34页码:28895-28903
摘要During 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.
关键词Waste-water Treatment Homoserine Lactones Bioreactors Mbr Identification Microfiltration Acylase Plant
文章类型Article
学科领域Chemistry, Multidisciplinary ; Chemistry
WOS标题词Science & Technology ; Physical Sciences
DOI10.1039/c6ra01663d
URL查看原文
收录类别SCI
语种英语
关键词[WOS]WASTE-WATER TREATMENT ; HOMOSERINE LACTONES ; BIOREACTORS ; MBR ; IDENTIFICATION ; MICROFILTRATION ; ACYLASE ; PLANT
WOS研究方向Chemistry
WOS类目Chemistry, Multidisciplinary
项目资助者National High-Tech R&D Program of China(2012AA021202 ; 2014AA021005)
WOS记录号WOS:000372610200087
引用统计
被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/20705
专题研究所(批量导入)
通讯作者Shen, F
作者单位1.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
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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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