典型文献
Unraveling Membrane Fouling Induced by Chlorinated Water Versus Surface Water:Biofouling Properties and Microbiological Investigation
文献摘要：
Chlorine is usually applied in the urban water treatment process to deactivate pathogens and prevent waterborne diseases.As a pre-treatment,it remains unclear whether chlorinated water can effectively alleviate membrane fouling during ultrafiltration(UF).In this study,tap water was investigated for its effect on biofilm formation and biofouling in a gravity-driven membrane(GDM)filtration system.For comparison,biofilm/biofouling with untreated surface(lake)water was studied in parallel.It was found that more severe membrane fouling occurred with the filtration of tap water than lake water,and larger quantities of polysaccharide and extracellular DNA(eDNA)were present in the tap-water biofilm than in the lake-water biofilm.The tap-water biofilm had a densely compact morphology.In contrast,a porous,spider-like structure was observed for the lake-water biofilm,which was assumed to be associated with the bacteria in the biofilm.This hypothesis was verified by 16S ribosomal RNA(rRNA)sequencing,which demonstrated that Xanthobacter was the dominant taxon in the tap-water biofilm.Additionally,mem-brane hydrophobicity/hydrophilicity played a minor role in affecting the membrane fouling properties and microbial community.This study revealed the significant role of chlorine-resistant bacteria in bio-fouling formation and provides a deeper understanding of membrane fouling,which can potentially aid in searching for effective ways of controlling membrane fouling.
文献关键词：
中图分类号：
作者姓名：
Li Zhang;Lei Xu;Nigel Graham;Wenzheng Yu
作者机构：
State Key Laboratory of Environmental Aquatic Chemistry,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China;University of Chinese Academy of Sciences,Beijing 100049,China;Department of Civil and Environmental Engineering,Imperial College London,South Kensington Campus,London SW7 2AZ,UK
文献出处：
引用格式：
[1]Li Zhang;Lei Xu;Nigel Graham;Wenzheng Yu-.Unraveling Membrane Fouling Induced by Chlorinated Water Versus Surface Water:Biofouling Properties and Microbiological Investigation)[J].工程（英文）,2022(08):154-164
A类：
Fouling,Biofouling,Xanthobacter
B类：
Unraveling,Membrane,Induced,by,Chlorinated,Water,Versus,Surface,Properties,Microbiological,Investigation,Chlorine,usually,applied,urban,treatment,process,deactivate,pathogens,prevent,waterborne,diseases,remains,unclear,whether,chlorinated,effectively,alleviate,membrane,during,ultrafiltration,UF,this,study,tap,was,investigated,its,biofilm,formation,biofouling,gravity,driven,GDM,system,For,comparison,untreated,surface,lake,studied,parallel,It,found,that,more,severe,occurred,than,larger,quantities,polysaccharide,extracellular,eDNA,were,present,had,densely,compact,morphology,contrast,porous,spider,like,structure,observed,which,assumed,be,associated,bacteria,This,hypothesis,verified,16S,ribosomal,rRNA,sequencing,demonstrated,dominant,taxon,Additionally,hydrophobicity,hydrophilicity,played,minor,role,affecting,properties,microbial,community,revealed,significant,chlorine,resistant,provides,deeper,understanding,potentially,aid,searching,ways,controlling
AB值：
0.548289
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