Biofouling in ultrafiltration process for drinking water treatment and its control by chlorinated-water and pure water backwashing
Shao, Senlin1,2; Wang, Yue3; Shi, Danting1; Zhang, Xuezhi4; Tang, Chuyang Y.5; Liu, Zizheng1; Li, Jiangyun1,2
2018-12-10
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume644Issue:1Pages:306-314
AbstractWe investigated biofouling in ultrafiltration (UF) for drinking water treatment and its control by backwashing with chlorinated-water or pure water. By using sodium azide to suppress biological growth, the relative contribution of biofouling to total fouling was estimated, and its value (5.3-56.0%) varied with the feed water, and increased with the increases of filtration time and membrane flux. The biofouling layer could partially remove biodegradable organic matter and ammonia (32.9-74.2%). Backwashing using chlorinated-water partly inactivated the microorganisms (23.8%) but increased the content of extracellular polymeric substances (7.7%) in the biofouling layer. In contrast, backwashing using pure water led to a looser and more porous fouling layer according to optical coherence tomography observation. Consequently, the latter was more effective in reducing fouling resistance (33.41% reduction) compared to backwashing by chlorinated-water (8.6%). These findings reveal the critical roles of biofouling in pollutants removal in addition to membrane permeability, which has important implications for addressing seasonal ammonia pollution. (C) 2018 Published by Elsevier B.V.
SubtypeArticle
KeywordBiofouling Ultrafiltration Drinking Water Treatment Ammonia Backwashing
DOI10.1016/j.scitotenv.2018.06.220
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Funding OrganizationNatural Science Foundation of China(51608396 ; China Postdoctoral Science Foundation(2016M592386 ; Open Project of State Key Laboratory of Urban Water Resource and Environment(HC201709) ; Innovation project for water conservancy in Guangzhou province(2017-33) ; 51508423) ; 2017T100578) ; Natural Science Foundation of China(51608396 ; China Postdoctoral Science Foundation(2016M592386 ; Open Project of State Key Laboratory of Urban Water Resource and Environment(HC201709) ; Innovation project for water conservancy in Guangzhou province(2017-33) ; 51508423) ; 2017T100578)
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS KeywordEXTRACELLULAR POLYMERIC SUBSTANCES ; OPTICAL COHERENCE TOMOGRAPHY ; LOW PRESSURE ULTRAFILTRATION ; ADENOSINE-TRIPHOSPHATE ATP ; MEMBRANE FILTRATION ; ORGANIC-MATTER ; PERMEATE FLUX ; MECHANISMS ; MICROFILTRATION ; DISINFECTION
WOS IDWOS:000445164000031
Funding OrganizationNatural Science Foundation of China(51608396 ; China Postdoctoral Science Foundation(2016M592386 ; Open Project of State Key Laboratory of Urban Water Resource and Environment(HC201709) ; Innovation project for water conservancy in Guangzhou province(2017-33) ; 51508423) ; 2017T100578) ; Natural Science Foundation of China(51608396 ; China Postdoctoral Science Foundation(2016M592386 ; Open Project of State Key Laboratory of Urban Water Resource and Environment(HC201709) ; Innovation project for water conservancy in Guangzhou province(2017-33) ; 51508423) ; 2017T100578)
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/56147
Collection藻类生物学及应用研究中心_水生生物分子与细胞生物学研究中心
Affiliation1.Wuhan Univ, Sch Civil Engn, Wuhan 430072, Hubei, Peoples R China
2.Wuhan Univ, Engn Res Ctr Urban Disasters Prevent & Fire Rescu, Wuhan 430072, Hubei, Peoples R China
3.Tongji Univ, Coll Environm Sci & Engn, Shanghai 200092, Peoples R China
4.Chinese Acad Sci, Inst Hydrobiol, Ctr Microalgal Biotechnol & Biofuels, Wuhan 430072, Hubei, Peoples R China
5.Univ Hong Kong, Dept Civil Engn, Hong Kong, Hong Kong, Peoples R China
Recommended Citation
GB/T 7714
Shao, Senlin,Wang, Yue,Shi, Danting,et al. Biofouling in ultrafiltration process for drinking water treatment and its control by chlorinated-water and pure water backwashing[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,644(1):306-314.
APA Shao, Senlin.,Wang, Yue.,Shi, Danting.,Zhang, Xuezhi.,Tang, Chuyang Y..,...&Li, Jiangyun.(2018).Biofouling in ultrafiltration process for drinking water treatment and its control by chlorinated-water and pure water backwashing.SCIENCE OF THE TOTAL ENVIRONMENT,644(1),306-314.
MLA Shao, Senlin,et al."Biofouling in ultrafiltration process for drinking water treatment and its control by chlorinated-water and pure water backwashing".SCIENCE OF THE TOTAL ENVIRONMENT 644.1(2018):306-314.
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